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Proton Calendar: Secure Events icon
GOOGLE PLAY

Proton Calendar: Secure Events

Proton AG · Productivity · United States store
NOT IN TOP 100 HERE
View on Google Play ↗ Instagram card App Store version →
Revenue a month, worldwide
Too small to estimate
Not enough chart or ratings data
New ratings
Tracking
Daily counts start building from today
Rating
4.4 of 5
8.6K ratings in this store
Countries it ranks in
0
was 0 on Oct 15, 2026

Revenue

Estimated from the grossing charts of Oct 21, 2026 in the 53 countries we track, and ratings growth on the App Store.

EST. REVENUE / MONTH · WORLDWIDE
Unranked
Not in any grossing chart, and it sells nothing in the store (no in-app purchases, free download). Any revenue comes from ads or payments outside the store, which we can't see.
LIFETIME INSTALLS (GOOGLE)
1.2M
About 21.8K per month on average since launch
RATINGS
8.6K
AVG RATING
4.35
PRICE
Free
IN APP PURCHASES
No
CONTAINS ADS
No
LAST UPDATE
23d ago
RELEASED
Apr 13, 2022
CONTENT RATING
Everyone

Last 29 days

From our daily snapshots of every grossing chart.

DAYS IN A GROSSING CHART
0 / 29
COUNTRIES NOW
0 (was 0)
EST. REVENUE FROM CHARTS, DAILY · BOTH STORES ONLY EST
Show daily values
Sep 24, 2026not in a grossing chart
Sep 25, 2026not in a grossing chart
Sep 26, 2026not in a grossing chart
Sep 27, 2026not in a grossing chart
Sep 28, 2026not in a grossing chart
Sep 29, 2026not in a grossing chart
Sep 30, 2026not in a grossing chart
Oct 1, 2026not in a grossing chart
Oct 2, 2026not in a grossing chart
Oct 3, 2026not in a grossing chart
Oct 4, 2026not in a grossing chart
Oct 5, 2026not in a grossing chart
Oct 6, 2026not in a grossing chart
Oct 7, 2026not in a grossing chart
Oct 8, 2026not in a grossing chart
Oct 9, 2026not in a grossing chart
Oct 10, 2026not in a grossing chart
Oct 11, 2026not in a grossing chart
Oct 12, 2026not in a grossing chart
Oct 13, 2026not in a grossing chart
Oct 14, 2026not in a grossing chart
Oct 15, 2026not in a grossing chart
Oct 16, 2026not in a grossing chart
Oct 17, 2026not in a grossing chart
Oct 18, 2026not in a grossing chart
Oct 19, 2026not in a grossing chart
Oct 20, 2026not in a grossing chart
Oct 21, 2026not in a grossing chart
Oct 22, 2026not in a grossing chart
Best rank Sep 24, 2026: not ranked. Now: not ranked. Days at zero are days outside every grossing chart.

Money and momentum

Measured from the store, not estimated.

WHAT IT CHARGES
No in-app purchases
Earns from its upfront price, ads or payments outside the store.
REVIEW MOMENTUM
9.1 reviews / week
  • Trendsteady
  • Recent reviews average3.3 stars
  • Recent 1 and 2 star share30%
From the latest 500 written reviews, covering 384 days. The store only returns this many, so this is the most recent slice.
RATING BREAKDOWN
8.6K ratings
5★71%
4★10%
3★9%
2★1%
1★8%

What users want

From the latest 500 reviews on the United States Google Play, Oct 3, 2025 to Oct 21, 2026: 30% are 1 or 2 stars. Open a theme to read what people wrote.

WHAT THEY COMPLAIN ABOUT · SHARE OF BAD REVIEWS
Bugs, things not working13%

20 of the 1 and 2 star reviews.

★★★★★ No choosing colors for different events (everything is gray), can only have 3 calendars (including holidays), and importing a calendar is glitchy.
★★★★★ There are bugs, and neither are well supported on Android at this time.
★★★★★ Nearly identical UI to Alphabet calendar, but deal-breaker is this doesn't work offline!
Lost data, sync, backup13%

19 of the 1 and 2 star reviews.

★★★★★ There's no search function, nor sync feature to pull in other calendars *and* keep them updated.
★★★★★ Synchronization is very slow and is getting slower over the last 6 months.
★★★★★ Update: deleted the account, re-downloaded with all new account info.
Missing features12%

18 of the 1 and 2 star reviews.

★★★★★ It lacks address lookup found in better calendar apps like Google Calendar.
★★★★★ The public holiday calendar of many countries is missing.
★★★★★ 8/18/25There is no option to be notified to leave based on location, how Apple calendar does.
Login and account problems10%

15 of the 1 and 2 star reviews.

★★★★★ Never once able to successfully login.
★★★★★ it's ridiculous that a calendar requires an account
★★★★★ Apparently, if you ever change your password, all of your events get encrypted and you get locked out.
Slow, laggy, battery9%

14 of the 1 and 2 star reviews.

★★★★★ Laggy, no offline viewing on mobile, no search on calendar mobile and its frustrating to use every day.
★★★★★ Synchronization is very slow and is getting slower over the last 6 months.
★★★★★ Sometimes it stays loading for a long time.
Price and subscription9%

13 of the 1 and 2 star reviews.

★★★★★ Not great that event colours are behind a pay wall..
★★★★★ CANCELLING OR COMPLETING APPOINTMENT SHOULD BE A SINGLE TOUCH
★★★★★ privacy shouldn´t come with a price.
Worse after an update6%

9 of the 1 and 2 star reviews.

★★★★★ There's no search function, nor sync feature to pull in other calendars *and* keep them updated.
★★★★★ Worked for a while before a recent update wiped all my calendar events.
★★★★★ Update: deleted the account, re-downloaded with all new account info.
Limits, credits, locked features5%

8 of the 1 and 2 star reviews.

★★★★★ Still too limited to bring new users yet.
★★★★★ making people have to pay just for basic stuff such as holidays is absolutely moronic!
★★★★★ Off-line Is so limited that it is unusable.
WHAT THEY ASK FOR
  • it would be nice if it allowed for offline access and then it synced when connected to the internet if needed. 4★, Oct 12, 2026
  • As my only notes, I wish I could set default notifications preferences, I would like a 1-day notification not to require customized timing, and I wish I could set the month calendar as default view after working on an… 4★, Oct 8, 2026
  • Getting better, but still needs a search function. 3★, Oct 7, 2026
  • A full calendar widget of the whole month would be nice though, not just the day you have things planned on. 5★, Oct 7, 2026
  • It would be great if You could fix it. 4★, Sep 26, 2026
  • Please prioritize and add a proper keyword search. 4★, Sep 24, 2026
  • please make a 1×1 widget that only show the name of the day,such as Saturday, Sunday...Thanks a lot 5★, Sep 14, 2026
  • (I wish I could import Outlook data from the app but it seems to be a web feature only atm). 5★, Sep 6, 2026
WORDS THAT KEEP COMING UP IN BAD REVIEWS
back to google6deal breaker7search function10calendar events5key features3work offline3google calender3turn off3other calendars4i'm trying3other proton3
WHAT THEY LOVE · SHARE OF GOOD REVIEWS
Easy to use9%

23 of the 4 and 5 star reviews.

★★★★★ Very clean interface and easy to navigate.
★★★★★ Easy to use, keeps your data private, clean UI
★★★★★ This App is so simple to use and it is my 'go to' each day !
Looks great9%

22 of the 4 and 5 star reviews.

★★★★★ Very clean interface and easy to navigate.
★★★★★ Easy to use, keeps your data private, clean UI
★★★★★ The Proton cares attitude with privacy and simplistic UI is what keeps me coming back again and again.
Worth the money4%

10 of the 4 and 5 star reviews.

★★★★★ some functionality missing but data privacy is worth it.
★★★★★ It's a really good calendar app and it already allows for 3 layers of calendars with the free version, which is something I was looking for!
★★★★★ Please enable more than one event colour in the free tier.
Useful, it helps2%

6 of the 4 and 5 star reviews.

★★★★★ I think it would be very helpful.
★★★★★ Simple, private, and genuinely useful for everyday planning.
★★★★★ search options on the phone would be helpful
Accurate, great results2%

6 of the 4 and 5 star reviews.

★★★★★ Great app, secure works well with email
★★★★★ works well, syncs with other calendars, handles scheduling needs with push notifications and other reminders.
★★★★★ It works well for me, can color code entries & developers responsive to feedback or suggestions.

Found by matching words and phrases in the reviews, not read by a person. A review can count toward more than one theme.

What users say

Latest reviews, United States Google Play.

★★★★★Oct 21, 2026

really like this calendar and all Proton stuff. missing a star due to not being able to copy/ duplicate entries within the app like I could with Google calendar. hoping to see this feature soon.

★★★★★Oct 19, 2026

another app by proton been installed, i just need PROTON MESSAGING and PROTON CALCULATOR apps, more privacy no tracking no collecting no sharing

★★★★★Oct 19, 2026

I complained about an issue and it ended up getting fixed, really surprised by their service. also, good app.

★★★★★Oct 18, 2026

Very clean interface and easy to navigate. Proton apps are quickly becoming my favourite apps.

★★★★★Oct 18, 2026

Changed to five stars & deleted previous review as condition to retain Google account.

★★★★★Oct 16, 2026

some functionality missing but data privacy is worth it.

Store screenshots

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App Store ads

Apple Search Ads this app ran in the last 90 days, from Apple's public ad repository.

Apple's ad repository couldn't be reached right now. Try again later.

Growth research

Where this app is buying and earning its users. Each link opens pre filtered.

Meta Ad Library ↗Active Facebook and Instagram adsTikTok Creative Center ↗Top performing TikTok adsTikTok creators ↗Organic videos mentioning the appInstagram ↗Reels and posts under its hashtagYouTube ↗Reviews, tutorials and ShortsDeveloper site ↗Landing page and pricing

ASO keywords

Most repeated terms in the listing. Highlighted ones also appear in the title or short description.

proton calendar6proton6calendar5planner4schedule4data4based switzerland3proton mail3event3users3easy2time2private2daily2monthly2view2between2mode2encryption2encrypted2based2switzerland2protected2laws2

What's new in 2.34.1

No release notes.

Store description

Proton Calendar is an easy-to-use planner and a time-management tool that keeps your schedule private Additional Highlights ✓ Schedule planner syncs automatically across browsers and devices ✓ Create recurring events on a daily, weekly, monthly, yearly, or custom basis ✓ Use as an appointment scheduler in local or foreign time zones ✓ Manage up to 20 calendars (paid feature) ✓ View your agenda from the home screen with the Proton Calendar widget ✓ Add multiple reminders for any event ✓ Use as a daily planner or monthly planner by switching between different views ✓ Choose to view your event schedule in dark mode or light mode PRIVATE CALENDAR ✓ No ads, no trackers, and no data sharing with any third parties ✓ We can’t spy on your activities or misuse your data ✓ End-to-end encryption — fully encrypted data exchange between Proton Calendar users ✓ Zero-access encryption — event names, descriptions, and participants are encrypted on our servers ✓ Based in Switzerland 🇨🇭 — All your data is protected by strict Swiss privacy laws USERS FIRST Building an internet that puts people ahead of 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 ✓ GDPR and HIPAA compliant ✓ Based in Switzerland and protected by some of the world’s strongest privacy laws What others say about Proton Calendar “Proton Mail 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

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Prices, ranks and reviews are per country. Revenue above is already worldwide.

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