Comparison

Tuta Calendar vs PrivacyNotes

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Tuta Calendar

This secure calendar app offers end-to-end encryption to protect your events and reminders. It features a user-friendly interface, cross-device syncing, and smart reminders, with a free plan and optional premium upgrades.

Highlights
  • Quantum-safe end-to-end encryption
  • Zero tracking and zero-knowledge architecture
  • Secure event sharing
  • Cross-device syncing
  • Multiple calendar views
  • Smart event reminders
  • Offline access
Read full description

PROTECT YOUR PRIVACY WITH TUTA CALENDAR – FREE, SECURE & ENCRYPTED PLANNER Take control of your schedule with Tuta Calendar, the world’s most secure calendar app, trusted by privacy-conscious users worldwide. With quantum-safe encryption, your events, reminders, and schedules stay private. Fast, open source, and free: Tuta Calendar is built with the highest security standards. Plus, it’s perfectly integrated with the Tuta Mail app. WHY CHOOSE TUTA CALENDAR? Stay Secure • Quantum-Safe Encryption: Your entire schedule, including event details and reminders, is fully end-to-end encrypted – only you can access it. • Zero Tracking: No ads, no profiling, no data sharing. Your calendars are yours. • Zero-Knowledge Architecture: We can’t see your events, meeting times, or attendees. Your schedule is invisible to us. • Secure Event Sharing: Share events securely with Tuta users or external calendars via password-protected invites. • GDPR-Compliant & Hosted in Germany: Protected by strict European privacy laws. Boost Your Productivity • Sync Across Devices: Your events instantly update on mobile, web, and desktop. • Recurring Events: Schedule daily, weekly, monthly, yearly, or custom repeating events. • Multiple Calendar Views: Easily switch between agenda, daily, 3-day, weekly, or monthly views. • External Calendar Sync: Subscribe to external calendars – updates happen automatically. • Unlimited Calendar Management (paid feature): Manage multiple calendars and toggle visibility effortlessly. • Offline Access: View and manage your schedule even without an internet connection. Simple & Intuitive • User-Friendly Interface: Modern, clean design with light and dark modes. • Quick Navigation: Create, edit, or delete events in just a few taps. • Smart Event Reminders: Get encrypted notifications to ensure you never miss an appointment. • Email Integration: Link calendar events directly to your Tuta Mail account for seamless scheduling. PRICING Tuta offers a free plan for everyone, plus premium plans with extra features, available monthly or yearly. Every subscription includes Tuta Mail and Tuta Calendar, seamlessly syncing across all your devices. • Free – Secure, encrypted email and calendar at no cost. • Revolutionary – 20 GB, unlimited calendars, calendar invites and sharing, custom domains, and more. • Legend – 500 GB, unlimited calendars, calendar invites and sharing, 30 email addresses, and advanced features. No matter which plan you choose, your communication remains end-to-end encrypted, private, and completely free from tracking. BONUS: GET TUTA MAIL WITH THE SAME ACCOUNT Your Tuta account gives you access to Tuta Mail, the encrypted email service with the same quantum-safe security as your calendar. One account, two essential privacy tools – completely free. WHO IS BEHIND TUTA? Freedom fighters committed to protecting freedom of speech and your right to privacy! • Developed & Hosted in Germany: Adheres to strict GDPR data protection laws. • Private by Design: We can’t access your data – secure password reset ensures your privacy. • End-to-End Encrypted from the Ground Up: Every event, contact, and reminder is encrypted by default. TRUSTED BY SECURITY EXPERTS "Tuta provides an exceptional level of security and privacy... If security is your priority, there’s not much better than Tuta." — TechRadar "Since Tuta is open source and has amazing products in development, I moved my email there." — Journalist Dan Arel "Tuta’s email security is unmatched. Its mobile apps are fast and user-friendly, with fair pricing and a free option." — CyberSynchs JOIN MILLIONS WHO TRUST TUTA Protect Your Schedule: Download Tuta Calendar today and join millions who trust us for secure, encrypted time management. Website: https://tuta.com Open Source Code: https://github.com/tutao/tutanota Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

About

PrivacyNotes

Securely manage your notes, tasks, and journal with end-to-end encryption. This app ensures your data is private by design, with no trackers or ads. It works offline and syncs encrypted across your devices without requiring an account.

Highlights
  • Zero-knowledge encryption
  • Markdown-native notes
  • Task management
  • Private journaling
  • Offline functionality
  • Cross-device sync
Features
Read full description

PrivacyNotes is an end-to-end encrypted workspace for your notes, tasks, and journal. A 12-word recovery phrase, generated on your device, is the only key. Everything is encrypted before it leaves your phone, so no one, not even us, can read it. Three pillars, one private home: - Notes: fast and markdown-native, fully searchable, with note-links between them. - Tasks: capture and organize what you need to get done. - Journal: a quiet, private space for daily entries. Private by design: - Zero-knowledge encryption (XChaCha20-Poly1305). We store only ciphertext. - No trackers, no ads, no telemetry, ever. - Works offline; syncs encrypted across your devices. - No email or account required to start. Pro is a one-time purchase that unlocks unlimited devices, more encrypted storage, full note history, locked and PIN-protected notes, the mood and wellness suite, every color theme, and Zen mode. Your privacy is never the product. Privacy Policy: https://lifetimelabs.dev/privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Tuta Calendar4 screens
PrivacyNotes4 screens

Verdict

The call

The clearest difference is rating: PrivacyNotes at 5.0 against Tuta Calendar's 4.6. PrivacyNotes also leads on update cadence (every 3 days vs weekly). Tuta Calendar's advantage is ratings volume (161 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Tuta Calendar sells 4 in-app purchases, starting at $3.99 per month and PrivacyNotes sells 4 in-app purchases, starting at $4.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

PrivacyNotes holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Tuta Calendar has 161 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Tuta Calendar ships an update weekly, PrivacyNotes every 3 days. The most recent releases landed on September 28, 2026 and September 20, 2026 respectively.

Scorecard3 real differences · 7 level
Tuta Calendar versus PrivacyNotes: the parameters behind the verdict, then further details
ParameterTuta CalendarPrivacyNotes
PriceFreeFree
Rating4.6 (161 ratings)5.0 (1 ratings) — better
Positive reviews56.1% of reviews—
Number of ratings161 — better1
Update frequencyWeeklyEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size44 MB10 MB
Age rating4+4+
DeveloperTutao GmbHLifetime Labs LLC

Customer experience

Tuta Calendar

All ratings161 ratings
Positive90.1%
Neutral3.1%
Negative6.8%
Written reviews66 reviews
Positive56.1%
Neutral13.6%
Negative30.3%

PrivacyNotes

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Tuta Calendar

Reported bugs

19 issues
  • App crashes frequently
  • Widget is not working or is blank
  • Calendar events not saving or changes not saving
  • App logs out automatically and shows invalid credentials
  • Double reminders for appointments
Show 14 more
  • Lost important information/data
  • Calendar subscriptions duplicate entries
  • Cannot delete calendars or calendar subscriptions
  • Cryptic error messages
  • App constantly crashing on opening
  • Login issues
  • FaceID login not working for free accounts
  • Account creation issues (clock puzzle)
  • Search function doesn't work on app
  • Events from calendar subscriptions not syncing
  • App ignores OS font size settings
  • Issues with recurring events being duplicated
  • Calendar entries not visible without connection
  • Events reload every time the app opens

Requested features

31 requests
  • App for the Watch
  • Icon shows current date
  • Ability to see holidays marked
  • Import from Apple calendar
  • Adjustable app opening view (e.g., month view)
Show 26 more
  • Default appointment length setting
  • Color code appointments on the same calendar
  • Widget that shows more than one day
  • Widget that shows entire month
  • Ability to see monthly and agenda view simultaneously
  • Option to zoom/pinch time intervals
  • Move event blocks by dragging
  • Custom settings for specific days of the week
  • Week numbers displayed
  • Full-featured calendar
  • Option to open locations in other map apps
  • More customizability in UI
  • Better readability for low vision users
  • Adjustable text size respecting OS settings
  • More compact week view
  • Display more event details in month view
  • Quick access to distant calendar days
  • Emojis in events
  • Family planner in free tier
  • On-device notes/non-login option
  • Support for holidays by country/region
  • Dark mode option
  • Advanced analytics dashboard
  • Ability to expand week view to include more than 8 hours
  • Sync with other calendar apps
  • More robust search functionality on mobile app

PrivacyNotes

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Tuta Calendar

Subscriptions4
  • Revolutionary (Monthly)$3.991 Month
  • Legend (Monthly)$9.991 Month
  • Revolutionary (Yearly)$39.991 Year
Show 1 more
  • Legend (Yearly)$99.991 Year
4 purchases

PrivacyNotes

Subscriptions3
  • 1 GB Encrypted Storage$4.991 Year
  • 2 GB Encrypted Storage$8.991 Year
  • 5 GB Encrypted Storage$17.991 Year
One-time1
  • PrivacyNotes Pro$49.99

Questions

Is Tuta Calendar free?
Tuta Calendar is free to download, with in-app purchases available.
Is PrivacyNotes free?
PrivacyNotes is free to download, with in-app purchases available.
Which has better reviews, Tuta Calendar or PrivacyNotes?
PrivacyNotes is rated higher. Tuta Calendar averages 4.6 out of 5 from 161 ratings, while PrivacyNotes averages 5.0 from 1 ratings.
Do Tuta Calendar or PrivacyNotes have ads?
Neither Tuta Calendar nor PrivacyNotes shows ads.
Which is updated more often, Tuta Calendar or PrivacyNotes?
Tuta Calendar ships an update weekly, and PrivacyNotes every 3 days. Most recently, Tuta Calendar was updated on September 28, 2026 and PrivacyNotes on September 20, 2026.

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