Comparison

addy.io vs Tuta Calendar

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

Head to head
About

addy.io

Manage your email aliases and recipients on the go with this sleek mobile application. Create new aliases, forward emails, and receive notifications for delivery issues. Securely access your account with biometric authentication.

Highlights
  • Create and manage email aliases
  • Forward emails from anywhere
  • Biometric app lock
  • Notifications for delivery issues
  • Alias management via Shortcuts and Siri
  • Widgets for quick access
  • WatchOS app for on-the-go management
Features
Read full description

Easily create and manage your addy.io aliases, recipients and more from your phone, tablet or wearable with this gorgeous addy.io app for iOS and iPadOS. Requirements: addy.io instance running v1.7.3 or higher (current version of the addy.io app has been tested with v1.7.3) Characteristics: - Connect to a hosted addy.io instance or your own self-hosted instance - A unique, gorgeous and sleek design, based on the Human Interface Guidelines - Support for Deep Link to easily deactivate aliases from the email banner - Lock the app using Biometrics - App exclusive features - Watching aliases for new emails - Send emails from aliases from anywhere by selecting and sharing text or an email address - Get notified on failed deliveries, domain errors and expiring subscriptions - Create aliases using Shortcuts and Siri - Manage your addy.io subscription - Enable error logging to *locally* store exceptions for easy troubleshooting - Widgets! - Manage and create aliases on the go with the WatchOS app, including support for Siri Security: - Keychain API, your API key and other addy.io related settings are securely stored on your device using the Keychain API - I am forgoing the convenient third-party collection SDK and various stats just so you can use it with confidence. Manage (add, edit, delete): - Aliases - Recipients - Domains - Usernames - Rules - Blocklist - Labels - Failed deliveries What is addy.io: addy.io is an open source email forwarding service designed to protect an Internet user's email addresses from spam and other unwanted emails. Using the addy.io app managing your aliases has become easier than ever! addy.io Terms of Service: https://addy.io/terms?ref=appstore addy.io Privacy Policy: https://addy.io/privacy?ref=appstore

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

Screenshots

addy.io4 screens
Tuta Calendar4 screens

Verdict

The call

addy.io and Tuta Calendar both sit at 4.7 stars, but that hides the real split: 81% of addy.io's written reviews are positive against 57% of Tuta Calendar's. Tuta Calendar's advantage is update cadence (weekly vs every 3 weeks). On price, rating, ratings volume and ads 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. addy.io sells 3 in-app purchases, starting at $3.99 per month and Tuta Calendar sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for addy.io against 4.6 for Tuta Calendar. Both are backed by a comparable volume of ratings — 75 and 165 respectively. Written reviews are what separate them: 81% of addy.io's written reviews are positive against 57% of Tuta Calendar's.

UpkeepUpdate frequency

addy.io ships an update every 3 weeks, Tuta Calendar weekly. Both last shipped on October 30, 2026.

Scorecard2 real differences · 8 level
addy.io versus Tuta Calendar: the parameters behind the verdict, then further details
Parameteraddy.ioTuta Calendar
PriceFreeFree
Rating4.7 (75 ratings) — better4.6 (165 ratings)
Positive reviews81.0% of reviews — better56.7% of reviews
Number of ratings75165 — better
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS17.016.0 — better
Further details — not scored
Size56 MB45 MB
Age rating4+4+
Developeraddy.ioTutao GmbH

Customer experience

addy.io

All ratings70 ratings
Positive91.4%
Neutral4.3%
Negative4.3%
Written reviews21 reviews
Positive81.0%
Neutral9.5%
Negative9.5%

Tuta Calendar

All ratings162 ratings
Positive90.1%
Neutral3.1%
Negative6.8%
Written reviews67 reviews
Positive56.7%
Neutral13.4%
Negative29.9%

Bugs and requests

addy.io

Not enough reviews yet to summarise bugs or 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

In-app purchases

3 purchases

addy.io

Subscriptions3
  • Pro Plan (1 Month)$3.991 Month
  • Lite Plan (1 Year)$13.491 Year
  • Pro Plan (1 Year)$39.991 Year
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

Questions

Is addy.io free?
addy.io is free to download, with in-app purchases available.
Is Tuta Calendar free?
Tuta Calendar is free to download, with in-app purchases available.
Which has better reviews, addy.io or Tuta Calendar?
addy.io is rated higher. addy.io averages 4.7 out of 5 from 75 ratings, while Tuta Calendar averages 4.6 from 165 ratings.
Do addy.io or Tuta Calendar have ads?
Neither addy.io nor Tuta Calendar shows ads.
Which is updated more often, addy.io or Tuta Calendar?
addy.io ships an update every 3 weeks, and Tuta Calendar weekly. Most recently, addy.io was updated on October 30, 2026 and Tuta Calendar on October 30, 2026.

Other comparisons