Proton Calendar: Secure Events

🇺🇸 United States
Proton Technologies AG  | 
46
ASO score
Text
63/100
Reviews
0/100
Graphic
60/100
Other
0/100
rating
App Rating
4
rating
Votes
2.74K
rating
App Age
3y
rating
Last Update
Dec 05, 2025
rating
iAP
$59.99 - 149.99

Compare with Category Top Apps

Metrics
Current App
Category Top Average
Difference
Rating
4
4.68
-15%
Number of Ratings (Voted)
2.7K
3.2M
-100%
App Age
3y 0m
7y 8m
-60%
In-app Purchases Price
$105
$67
+56 %
Update Frequency
58d
28d
+106%
Title Length
30
23
+30%
Subtitle Length
26
28
-7%
Description Length
1 530
3 048
-50%
Number of Screenshots
936
1339
-30 %
Size
180MB
276MB
-35 %

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Ranking Keywords in United States

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Text ASO

Title (
Characters: 30 of 30
)
Proton Calendar: Secure Events
Subtitle (
Characters: 26 of 30
)
Keep your schedule private
Description (
Characters: 1530 of 4000
)
A calendar is a record of your life: Proton Calendar helps keep it private. Make the most of your time - See your upcoming events as you like with agenda or day view - View and reply to invites - Events and invites are automatically added to your calendar from your Proton Mail inbox - View your schedule in light or dark mode - Add multiple reminders for your events - Create recurring events on a daily, weekly, monthly, yearly, or custom basis - Keep your calendar in sync across all your devices Private by default - No ads, no trackers, and no data harvesting - We can’t spy on your calendar or misuse your data - Protected by the same end-to-end encryption used in Proton Mail - Event names, descriptions, and participants are stored with zero-access encryption - Based in Switzerland, all your data is protected by strict Swiss privacy laws People before profits - Funded by users, not advertisers — Privacy is our business model - Built by scientists and engineers who met at CERN and MIT and founded Proton Mail - Used by high-profile journalists and organizations globally What others say about Proton: “Proton has now made it stupid-easy to encrypt your schedule. Information about what you plan to do, where, and with whom, can be just as sensitive as the messages you send and receive.” Gizmodo Follow Proton on social media for all the latest news and offers: Facebook: /proton Twitter/X: @protonprivacy Reddit: /protonmail Instagram: /protonprivacy EULA: http://www.apple.com/legal/itunes/appstore/dev/stdeula}
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Visual ASO

Screenshots

Rating & Reviews

Reviews Overview
🧐 Coming Soon…
Rating
4
2 735 voters

Some Latest Reviews

user196577
06 Dec, 2025
3
Neue Termine dauern ewig bis sie gespeichert werden, unter iOS kann man keine Termine suchen
Jonaschwa
05 Dec, 2025
2
So sehr ich Proton Mail mag, so wenig kann ich mit dem Kalender anfangen, funktional sind da im Vergleich zu anderen Kalendern eher nur absolute Grundlagen vorhanden. Es gäbe wirklich viel zum aufzählen, daher nur Beispiele ... Bei eigenen Serienterminen kann ich auch einzelne Termine verändern, wenn ich jedoch selbst nur Teilnehmer bin und an einem Tag nicht kann, wird dennoch die komplette Serie abgesagt. Proton kann kein CALDAV, weder kann ich einen weiteren Kalender einbinden noch einen Protonkalender freigeben, für letzteres würde mir ja zum Datenschutz schon eine Freigabe der Frei-/Belegtzeiten reichen um mal externe Dienste wie Calendly, zeeg.me oder wie sie alle heißen einzubinden. Ob frei oder belegt kann ich auch nicht per Termin einstellen, hier gibt es aber den Workaround sich mehrere Kalender einzurichten und einen Termin zwischen den Kalendern zu verschieben. Das Widget aktualisiert sich nicht selbstständig um neue Termine anzuzeigen, man muss manuell auf auffrischen klicken. Als Videokonferenz wird nur Zoom angeboten (warum ein Datenschutzorientiertes Unternehmen wie Proton sich ausgerechnet für Zoom entschieden hat, kann auch keiner erklären). Gut, da soll jetzt mit Proton Meet noch was kommen, aber da muss sich noch zeigen ob das überzeugen kann. Letztendlich waren es so viele Kleinigkeiten, dass ich mir jetzt eine Nextcloud nur für den Kalender aufgesetzt habe. Einziges Problem ist jetzt noch dass Termineinladungen die ich per Mail an Proton bekomme, nur in den Protonkalender eingetragen werden - denn Proton kann ja kein CALDAV um in den Nextcloud zu schreiben. Die muss ich jetzt halt jedes Mal manuell in Nextcloud übertragen.
_N1CK!!_
27 Nov, 2025
3
Honestly it’s not the best. The lack of viewing options has me a little disappointed. I should also be able to pinch to zoom in and out to view more than just dots, when it comes to the month to month. Take some notes from Apple Calendar and maybe I will swap back and give this another shot.
Skolas
24 Nov, 2025
5
Overall I’ve had a pretty good experience with this app. I had like one syncing issue since getting it, but besides that Im still glad to have switched over from google calendar
Bdjdhee
24 Nov, 2025
2
Just upgraded to the paid version of Proton calendar (and Mail) but over the weekend the widget has disappeared. I like a constant visual of upcoming events and without this, I don’t class it as a properly functioning calendar app. Please fix this asap.
Emilio246
16 Nov, 2025
5
I use Calendar as my default calendar, I like it’s straightforward and simple to use and it’s very comfortable that is also is encrypted.
jb59047
16 Nov, 2025
4
Voilà maintenant six mois que je tente d’adopter ce calendrier par défaut. Il ne parvient pas encore à remplacer celui d’Apple. Il est un peu lent. Il faudrait pouvoir rattacher des pièces jointes entre parenthèses je pense à un billet de train, une place de concert, etc). Il devrait y avoir une saisie semi-automatique de l’adresse quand on commence à taper le clavier avec la possibilité ensuite en cliquant sur l’adresse d’aller directement sur Plans. Enfin il faudrait avoir un gestionnaire de contacts digne de ce nom qui pourrait être lié avec le calendrier (anniversaires, adresse, etc). Ce sont des fonctionnalités de base que j’attends avec impatience, bien au-delà d’une nouvelle IA (Lumo)
jb2041
14 Nov, 2025
2
Les widgets sont tellement moche que ça fait du tord à l’application. Engagez un designer
Stausb
11 Nov, 2025
1
I really really want to like using this app. I like the other proton products, but this calendar app is embarrassingly excruciatingly hairpullingly slow! Literally takes 30 seconds before events appear in general. Then another 30 seconds to focus on a date (the ui become unresponsive while waiting). And then to try and add an event is another 30 seconds for the edit window to appear and become responsive and then finally you submit the event and you pray to the universe that it goes through and actually work. Seriously, it has been this bad for over half a year for me and I hope and hope it will get better because I want to like this app. It is a simple app that I just want to like. But it is absolutely performing like garbage. It is terrible. Please please please investigate what makes it so slow. If I have too many events that need to decompress from some encryption system then give me a way to purge events older than X days. You are giving me no information. At least let me know which part of the process is slowing everything down down. Please

Other

Additional Information
Rating:
4.01
Voted: 2.74K
App Store Link:
Website: -
Email: -
Privacy Policy:
Categories: Productivity, Utilities
Size: 179MB
iAP: 59.99 - 149.99 $
App Age: 3 years
Release Date: Nov 30, 2022
Last Update: Dec 05, 2025
Version: 2.24.0
Version history
2.24.0
Dec 05, 2025
- updated translations - minor bug-fixes
2.23.0
Oct 29, 2025
- Timezones Settings
Version history