diff --git a/i18n/ar/calendar.md b/i18n/ar/calendar.md
index b7f2189d..07671ab9 100644
--- a/i18n/ar/calendar.md
+++ b/i18n/ar/calendar.md
@@ -52,6 +52,8 @@ Calendars contain some of your most sensitive data; use products that implement
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Criteria
 
 **Please note we are not affiliated with any of the projects we recommend.** In addition to [our standard criteria](about/criteria.md), we have developed a clear set of requirements to allow us to provide objective recommendations. We suggest you familiarize yourself with this list before choosing to use a project, and conduct your own research to ensure it's the right choice for you.
diff --git a/i18n/bn-IN/calendar.md b/i18n/bn-IN/calendar.md
index b7f2189d..07671ab9 100644
--- a/i18n/bn-IN/calendar.md
+++ b/i18n/bn-IN/calendar.md
@@ -52,6 +52,8 @@ Calendars contain some of your most sensitive data; use products that implement
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Criteria
 
 **Please note we are not affiliated with any of the projects we recommend.** In addition to [our standard criteria](about/criteria.md), we have developed a clear set of requirements to allow us to provide objective recommendations. We suggest you familiarize yourself with this list before choosing to use a project, and conduct your own research to ensure it's the right choice for you.
diff --git a/i18n/bn/calendar.md b/i18n/bn/calendar.md
index b7f2189d..07671ab9 100644
--- a/i18n/bn/calendar.md
+++ b/i18n/bn/calendar.md
@@ -52,6 +52,8 @@ Calendars contain some of your most sensitive data; use products that implement
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Criteria
 
 **Please note we are not affiliated with any of the projects we recommend.** In addition to [our standard criteria](about/criteria.md), we have developed a clear set of requirements to allow us to provide objective recommendations. We suggest you familiarize yourself with this list before choosing to use a project, and conduct your own research to ensure it's the right choice for you.
diff --git a/i18n/cs/calendar.md b/i18n/cs/calendar.md
index b7f2189d..07671ab9 100644
--- a/i18n/cs/calendar.md
+++ b/i18n/cs/calendar.md
@@ -52,6 +52,8 @@ Calendars contain some of your most sensitive data; use products that implement
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Criteria
 
 **Please note we are not affiliated with any of the projects we recommend.** In addition to [our standard criteria](about/criteria.md), we have developed a clear set of requirements to allow us to provide objective recommendations. We suggest you familiarize yourself with this list before choosing to use a project, and conduct your own research to ensure it's the right choice for you.
diff --git a/i18n/de/calendar.md b/i18n/de/calendar.md
index b7f2189d..07671ab9 100644
--- a/i18n/de/calendar.md
+++ b/i18n/de/calendar.md
@@ -52,6 +52,8 @@ Calendars contain some of your most sensitive data; use products that implement
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Criteria
 
 **Please note we are not affiliated with any of the projects we recommend.** In addition to [our standard criteria](about/criteria.md), we have developed a clear set of requirements to allow us to provide objective recommendations. We suggest you familiarize yourself with this list before choosing to use a project, and conduct your own research to ensure it's the right choice for you.
diff --git a/i18n/el/calendar.md b/i18n/el/calendar.md
index b7f2189d..07671ab9 100644
--- a/i18n/el/calendar.md
+++ b/i18n/el/calendar.md
@@ -52,6 +52,8 @@ Calendars contain some of your most sensitive data; use products that implement
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Criteria
 
 **Please note we are not affiliated with any of the projects we recommend.** In addition to [our standard criteria](about/criteria.md), we have developed a clear set of requirements to allow us to provide objective recommendations. We suggest you familiarize yourself with this list before choosing to use a project, and conduct your own research to ensure it's the right choice for you.
diff --git a/i18n/eo/calendar.md b/i18n/eo/calendar.md
index b7f2189d..07671ab9 100644
--- a/i18n/eo/calendar.md
+++ b/i18n/eo/calendar.md
@@ -52,6 +52,8 @@ Calendars contain some of your most sensitive data; use products that implement
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Criteria
 
 **Please note we are not affiliated with any of the projects we recommend.** In addition to [our standard criteria](about/criteria.md), we have developed a clear set of requirements to allow us to provide objective recommendations. We suggest you familiarize yourself with this list before choosing to use a project, and conduct your own research to ensure it's the right choice for you.
diff --git a/i18n/es/calendar.md b/i18n/es/calendar.md
index a9acef11..2e313cab 100644
--- a/i18n/es/calendar.md
+++ b/i18n/es/calendar.md
@@ -52,6 +52,8 @@ Los calendarios contienen algunos de sus datos más sensibles; utilice productos
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Criterios
 
 **Por favor, ten en cuenta que no estamos afiliados con ninguno de los proyectos que recomendamos.** Además de [nuestros criterios estándar](about/criteria.md), hemos desarrollado un conjunto claro de requisitos que nos permiten ofrecer recomendaciones objetivas. Sugerimos que te familiarices con esta lista, antes de decidir utilizar un proyecto y realizar tu propia investigación para asegurarte de que es la elección ideal para ti.
diff --git a/i18n/fa/calendar.md b/i18n/fa/calendar.md
index b7f2189d..07671ab9 100644
--- a/i18n/fa/calendar.md
+++ b/i18n/fa/calendar.md
@@ -52,6 +52,8 @@ Calendars contain some of your most sensitive data; use products that implement
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Criteria
 
 **Please note we are not affiliated with any of the projects we recommend.** In addition to [our standard criteria](about/criteria.md), we have developed a clear set of requirements to allow us to provide objective recommendations. We suggest you familiarize yourself with this list before choosing to use a project, and conduct your own research to ensure it's the right choice for you.
diff --git a/i18n/fr/calendar.md b/i18n/fr/calendar.md
index 48684911..8af5209f 100644
--- a/i18n/fr/calendar.md
+++ b/i18n/fr/calendar.md
@@ -52,6 +52,8 @@ Les calendriers contiennent certaines de vos données les plus sensibles ; utili
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Critères
 
 **Veuillez noter que nous ne sommes affiliés à aucun des projets que nous recommandons.** En plus de [nos critères de base](about/criteria.md), nous avons développé un ensemble d'exigences claires pour nous permettre de fournir des recommandations objectives. Nous vous suggérons de vous familiariser avec cette liste avant de choisir d'utiliser un projet, et de mener vos propres recherches pour vous assurer que c'est le bon choix pour vous.
diff --git a/i18n/he/calendar.md b/i18n/he/calendar.md
index 2da61f14..9e019946 100644
--- a/i18n/he/calendar.md
+++ b/i18n/he/calendar.md
@@ -52,6 +52,8 @@ cover: calendar.webp
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## קריטריונים
 
 **שים לב שאיננו קשורים לאף אחד מהפרויקטים שאנו ממליצים עליהם.** בנוסף ל [הקריטריונים הסטנדרטיים שלנו](about/criteria.md), פיתחנו סט ברור של דרישות כדי לאפשר לנו לספק המלצות אובייקטיביות. אנו מציעים לך להכיר את הרשימה הזו לפני שתבחר להשתמש בפרויקט, ולערוך מחקר משלך כדי להבטיח שזו הבחירה הנכונה עבורך.
diff --git a/i18n/hi/calendar.md b/i18n/hi/calendar.md
index b7f2189d..07671ab9 100644
--- a/i18n/hi/calendar.md
+++ b/i18n/hi/calendar.md
@@ -52,6 +52,8 @@ Calendars contain some of your most sensitive data; use products that implement
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Criteria
 
 **Please note we are not affiliated with any of the projects we recommend.** In addition to [our standard criteria](about/criteria.md), we have developed a clear set of requirements to allow us to provide objective recommendations. We suggest you familiarize yourself with this list before choosing to use a project, and conduct your own research to ensure it's the right choice for you.
diff --git a/i18n/hu/calendar.md b/i18n/hu/calendar.md
index 4d67c9d7..eb25e7fc 100644
--- a/i18n/hu/calendar.md
+++ b/i18n/hu/calendar.md
@@ -52,6 +52,8 @@ A naptárak a legérzékenyebb adataidat tartalmazzák; használj at rest End-to
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Követelmények
 
 **Tartsd figyelemben, hogy nem állunk kapcsolatban az általunk ajánlott projektek egyikével sem.** Az [alap kritériumaink mellett](about/criteria.md), egyértelmű követelményrendszert dolgoztunk ki, hogy objektív ajánlásokat tudjunk tenni. Javasoljuk, hogy ismerkedj meg ezzel a listával, mielőtt kiválasztanál egy projektet, és végezz saját kutatásokat, hogy megbizonyosodj arról, hogy ez a megfelelő választás számodra.
diff --git a/i18n/id/calendar.md b/i18n/id/calendar.md
index d794d148..5bec6095 100644
--- a/i18n/id/calendar.md
+++ b/i18n/id/calendar.md
@@ -52,6 +52,8 @@ Calendars contain some of your most sensitive data; use products that implement
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Kriteria
 
 **Harap diperhatikan bahwa kami tidak berafiliasi dengan proyek-proyek yang kami rekomendasikan.** Selain [kriteria standar kami](about/criteria.md), kami telah mengembangkan serangkaian persyaratan yang jelas untuk memungkinkan kami memberikan rekomendasi yang objektif. Kami sarankan Anda membiasakan diri dengan daftar ini sebelum memilih untuk menggunakan sebuah proyek, dan melakukan penelitian sendiri untuk memastikan bahwa itu adalah pilihan yang tepat untuk Anda.
diff --git a/i18n/it/calendar.md b/i18n/it/calendar.md
index 97cd17b5..083eff01 100644
--- a/i18n/it/calendar.md
+++ b/i18n/it/calendar.md
@@ -52,6 +52,8 @@ I calendari contengono alcuni dei tuoi dati più sensibili; utilizza prodotti ch
         - [:simple-appstore: App Store](https://apps.apple.com/it/app/proton-calendar-agenda-sicura/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Criteri
 
 **Ti preghiamo di notare che non siamo affiliati con alcun progetto consigliato.** Oltre ai [nostri criteri standard](about/criteria.md), abbiamo sviluppato una serie chiara di requisiti per consentirci di fornire consigli oggettivi. Ti suggeriamo di familiarizzare con questo elenco prima di scegliere di utilizzare un progetto e di condurre le tue ricerche per assicurarti che si tratti della scelta adatta a te.
diff --git a/i18n/ja/calendar.md b/i18n/ja/calendar.md
index 5eed1a83..9c76a439 100644
--- a/i18n/ja/calendar.md
+++ b/i18n/ja/calendar.md
@@ -52,6 +52,8 @@ Calendars contain some of your most sensitive data; use products that implement
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## 規準
 
 **私たちは、推薦するどのプロジェクトとも提携していません。**客観的に推薦できるよう、[標準となる規準](about/criteria.md)に加えて、一連の明確な要件を定めています。 プロジェクトを利用する前に、このリストをよく理解し、ご自身で調査を行って、そのプロジェクトがあなたにとって適切な選択かどうかをご確認ください。
diff --git a/i18n/ko/calendar.md b/i18n/ko/calendar.md
index bb5a132d..01c122be 100644
--- a/i18n/ko/calendar.md
+++ b/i18n/ko/calendar.md
@@ -52,6 +52,8 @@ cover: calendar.webp
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## 평가 기준
 
 **Privacy Guides는 권장 목록의 어떠한 프로젝트와도 제휴를 맺지 않았습니다.** 객관적인 권장 목록을 제공하기 위해, [일반적인 평가 기준](about/criteria.md)에 더해 명확한 요구 사항을 정립하였습니다. 어떠한 프로젝트를 선택해 사용하기 전에, 이러한 요구 사항들을 숙지하고 여러분 스스로 조사하는 과정을 거쳐 적절한 선택을 하시기 바랍니다.
diff --git a/i18n/ku-IQ/calendar.md b/i18n/ku-IQ/calendar.md
index b7f2189d..07671ab9 100644
--- a/i18n/ku-IQ/calendar.md
+++ b/i18n/ku-IQ/calendar.md
@@ -52,6 +52,8 @@ Calendars contain some of your most sensitive data; use products that implement
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Criteria
 
 **Please note we are not affiliated with any of the projects we recommend.** In addition to [our standard criteria](about/criteria.md), we have developed a clear set of requirements to allow us to provide objective recommendations. We suggest you familiarize yourself with this list before choosing to use a project, and conduct your own research to ensure it's the right choice for you.
diff --git a/i18n/nl/calendar.md b/i18n/nl/calendar.md
index bf98ef36..a9b89a72 100644
--- a/i18n/nl/calendar.md
+++ b/i18n/nl/calendar.md
@@ -52,6 +52,8 @@ Kalenders en contactpersonen bevatten enkele van jouw gevoeligste gegevens; gebr
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Criteria
 
 **Wij zijn niet verbonden aan de projecten die wij aanbevelen.** Naast [onze standaardcriteria](about/criteria.md)hebben wij een duidelijke reeks eisen ontwikkeld om objectieve aanbevelingen te kunnen doen. Wij stellen voor dat je jezelf vertrouwd maakt met deze lijst voordat je een project kiest, en jouw eigen onderzoek uitvoert om er zeker van te zijn dat je de juiste keuze maakt.
diff --git a/i18n/pl/calendar.md b/i18n/pl/calendar.md
index 7515384f..efb7712a 100644
--- a/i18n/pl/calendar.md
+++ b/i18n/pl/calendar.md
@@ -52,6 +52,8 @@ Calendars contain some of your most sensitive data; use products that implement
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Criteria
 
 **Please note we are not affiliated with any of the projects we recommend.** In addition to [our standard criteria](about/criteria.md), we have developed a clear set of requirements to allow us to provide objective recommendations. We suggest you familiarize yourself with this list before choosing to use a project, and conduct your own research to ensure it's the right choice for you.
diff --git a/i18n/pt-BR/calendar.md b/i18n/pt-BR/calendar.md
index ff22c43a..0e55b781 100644
--- a/i18n/pt-BR/calendar.md
+++ b/i18n/pt-BR/calendar.md
@@ -52,6 +52,8 @@ Os calendários contêm alguns de seus dados mais confidenciais; use produtos qu
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Criteria
 
 **Please note we are not affiliated with any of the projects we recommend.** In addition to [our standard criteria](about/criteria.md), we have developed a clear set of requirements to allow us to provide objective recommendations. We suggest you familiarize yourself with this list before choosing to use a project, and conduct your own research to ensure it's the right choice for you.
diff --git a/i18n/pt/calendar.md b/i18n/pt/calendar.md
index 4440fa3b..3f5d8f0c 100644
--- a/i18n/pt/calendar.md
+++ b/i18n/pt/calendar.md
@@ -54,6 +54,8 @@ Calendars contain some of your most sensitive data; use products that implement
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Framadate
 
 **Please note we are not affiliated with any of the projects we recommend.** In addition to [our standard criteria](about/criteria.md), we have developed a clear set of requirements to allow us to provide objective recommendations. We suggest you familiarize yourself with this list before choosing to use a project, and conduct your own research to ensure it's the right choice for you.
diff --git a/i18n/ru/calendar.md b/i18n/ru/calendar.md
index 24ed645c..d43609f9 100644
--- a/i18n/ru/calendar.md
+++ b/i18n/ru/calendar.md
@@ -52,6 +52,8 @@ cover: calendar.webp
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Критерии
 
 **Обрати внимание, что у нас нет связей ни с одним проектом, который мы рекомендуем.** В дополнение к [нашим стандартным критериям](about/criteria.md) мы разработали четкий набор требований, позволяющий давать объективные рекомендации. Перед тем, как вы решите выбрать какой-либо проект, мы рекомендуем вам ознакомиться со списком критериев и провести собственное исследование, чтобы убедиться в правильности своего выбора.
diff --git a/i18n/sv/calendar.md b/i18n/sv/calendar.md
index 2f67a211..891eee55 100644
--- a/i18n/sv/calendar.md
+++ b/i18n/sv/calendar.md
@@ -52,6 +52,8 @@ Calendars contain some of your most sensitive data; use products that implement
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Kriterier
 
 **Observera att vi inte är knutna till något av de projekt som vi rekommenderar.** Förutom [våra standardkriterier](about/criteria.md)har vi utvecklat en tydlig uppsättning krav som gör det möjligt för oss att ge objektiva rekommendationer. Vi föreslår att du bekantar dig med den här listan innan du väljer att använda ett projekt, och att du gör din egen forskning för att se till att det är rätt val för dig.
diff --git a/i18n/tr/calendar.md b/i18n/tr/calendar.md
index 86a99c09..84380971 100644
--- a/i18n/tr/calendar.md
+++ b/i18n/tr/calendar.md
@@ -52,6 +52,8 @@ Calendars contain some of your most sensitive data; use products that implement
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Criteria
 
 **Please note we are not affiliated with any of the projects we recommend.** In addition to [our standard criteria](about/criteria.md), we have developed a clear set of requirements to allow us to provide objective recommendations. We suggest you familiarize yourself with this list before choosing to use a project, and conduct your own research to ensure it's the right choice for you.
diff --git a/i18n/uk/calendar.md b/i18n/uk/calendar.md
index a4f6cb3d..023190e7 100644
--- a/i18n/uk/calendar.md
+++ b/i18n/uk/calendar.md
@@ -52,6 +52,8 @@ Calendars contain some of your most sensitive data; use products that implement
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Criteria
 
 **Please note we are not affiliated with any of the projects we recommend.** In addition to [our standard criteria](about/criteria.md), we have developed a clear set of requirements to allow us to provide objective recommendations. We suggest you familiarize yourself with this list before choosing to use a project, and conduct your own research to ensure it's the right choice for you.
diff --git a/i18n/vi/calendar.md b/i18n/vi/calendar.md
index 5b596b71..9f3f4d3e 100644
--- a/i18n/vi/calendar.md
+++ b/i18n/vi/calendar.md
@@ -64,6 +64,8 @@ Calendars contain some of your most sensitive data; use products that implement
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Framadate
 
 **Please note we are not affiliated with any of the projects we recommend.** In addition to [our standard criteria](about/criteria.md), we have developed a clear set of requirements to allow us to provide objective recommendations. We suggest you familiarize yourself with this list before choosing to use a project, and conduct your own research to ensure it's the right choice for you.
diff --git a/i18n/zh-Hant/calendar.md b/i18n/zh-Hant/calendar.md
index 40d2f21d..26b38d09 100644
--- a/i18n/zh-Hant/calendar.md
+++ b/i18n/zh-Hant/calendar.md
@@ -52,6 +52,8 @@ cover: calendar.webp
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## 標準
 
 **請注意，我們所推薦專案沒有任何瓜葛。 ** 除了 [標準準則](about/criteria.md)外，我們還發展出一套明確要求以提出客觀建議。 我們建議您在選擇使用項目之前先熟悉此列表，並進行自己的研究，以確保它是您的正確選擇。
diff --git a/i18n/zh/calendar.md b/i18n/zh/calendar.md
index f14c58b9..11acb907 100644
--- a/i18n/zh/calendar.md
+++ b/i18n/zh/calendar.md
@@ -52,6 +52,8 @@ cover: calendar.webp
         - [:simple-appstore: App Store](https://apps.apple.com/app/apple-store/id1514709943)
         - [:octicons-browser-16: Web](https://calendar.proton.me)
 
+Unfortunately, as of January 2024 Proton has [still](https://discuss.privacyguides.net/t/proton-calendar-is-not-open-source-mobile/14656/8) not released the source code for their mobile Calendar app on Android or iOS. Proton Calendar's web client is open source.
+
 ## Criteria
 
 **Please note we are not affiliated with any of the projects we recommend.** In addition to [our standard criteria](about/criteria.md), we have developed a clear set of requirements to allow us to provide objective recommendations. We suggest you familiarize yourself with this list before choosing to use a project, and conduct your own research to ensure it's the right choice for you.