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Best Tuta Calendar alternatives: apps like Tuta Calendar: Secure Planner

10+ similar apps compared and reviewed

4.4 avg rating
10 free apps
Updated November 2026
Tuta Calendar: Secure Planner
🔧 Utilities
📊 Productivity

Tuta Calendar is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

KobCard

KobCard by KOB MARKETING

Gift Card Information Platform
📊 Productivity
4.1(387 ratings)
Free
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KobCard is a comprehensive gift card information platform that offers real-time exchange rates, price calculations, and the latest news on gift cards. It serves as a one-stop destination for individuals looking to buy, sell, or stay informed about the world of gift cards.

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Top Alternatives to Tuta Calendar

Filen - Cloud Storage#1

Filen - Cloud Storage by Filen Cloud Dienste UG (haftungsbeschraenkt)

Cloud storage, redefined.
Editor's Choice
📊 Productivity
3.8😐(126 ratings)
Free
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Securely store photos, videos, and documents with military-grade encryption. Access files on any device, share them easily, and enjoy features like offline access and encrypted notes. Offers a free tier with 10 GB storage.

What We Love

  • 🔒 End-to-end encryption and privacy-focused design
  • 💰 Affordable pricing with generous storage tiers
  • 🌍 Open-source and transparent service
  • 🚀 Fast upload/download speeds
  • 👍 Clean and intuitive UI design
  • 🛠️ Responsive customer support team
  • 📱 Cross-platform compatibility (iOS, desktop, web, Linux)
  • 🔐 Zero-knowledge architecture
  • ⚡ Reliable sync functionality
  • 🎵 Unique features like Notes and Music integration

Room to Improve

  • 🐛 Frequent app crashes during uploads
  • 📸 Photo/video upload failures and inconsistencies
  • 🔄 Auto-upload feature unreliable and incomplete
  • ⚠️ Data loss issues in Notes feature
  • 🔐 Thumbnail cache exposed in Files app (security concern)
  • 🎬 Video playback and preview issues
  • 📱 iOS app feels clunky compared to desktop
  • 🔑 VoiceOver accessibility broken
  • 🚫 Cannot upload from iOS share extension
  • ⏱️ Slow load times and delayed biometric login
  • 🔄 Sync issues with camera roll
  • 📝 Text editor broken with certificate errors
  • 🎨 UI navigation issues and hidden features
Notesnook: Private notepad#2

Notesnook: Private notepad by Streetwriters LLC

Encrypted notes & secure vault
Strong Contender
📊 Productivity
4.7😊(692 ratings)
FreeIn-App Purchases
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This open-source app offers secure, encrypted note-taking and organization across all your devices. It features a robust editor, to-do lists, and a private journal with advanced security to protect your personal information.

What We Love

  • 🚀 Fast and efficient
  • 🔒 Secure and private
  • 👍 Clean and intuitive UI
  • 👍 Cross-platform compatibility
  • 👍 Generous free tier
  • 👍 Customizable features

Room to Improve

  • 🐛 Sync and login issues
  • 🐛 Buggy and crashes
  • 💰 Expensive premium tier
  • 🔒 Lack of free encryption features
addy.io#3

addy.io by addy.io

Anonymous Email Forwarding
Worth Considering
📊 Productivity
4.8(76 ratings)
FreeIn-App Purchases
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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.

More apps like Tuta Calendar

4
Encrypted Email - Mailfence
Encrypted Email - Mailfence
Encrypted Email - Mailfence
Secure & private mail suite
Free

This app provides a secure and private email service with integrated cloud storage, calendar, and contacts. It offers end-to-end encryption and password-protected emails for enhanced privacy. Ideal for individuals and businesses seeking a secure communication and collaboration platform.

OpenPGP encrypted emailsPassword-protected emailsIntegrated cloud storage (Drive)
📊 Productivity
(114)
freemium
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5
Proton Calendar: Secure Events
Proton Calendar: Secure Events
Proton Calendar: Secure Events
Keep your schedule private
Free

This app helps you manage your schedule with privacy in mind. It offers various viewing options, reminders, and recurring event creation. All your data is protected by end-to-end encryption and strict Swiss privacy laws, ensuring your personal information is not tracked or harvested.

Agenda and day viewView and reply to invitesAutomatic event addition from email
📊 Productivity
(1.6K)
free
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6
Cryptomator: Protect Privacy
Cryptomator: Protect Privacy
Cryptomator: Protect Privacy
Open Source Cloud Encryption
Free

Encrypt your sensitive data stored in cloud services with this open-source tool. It allows you to create secure vaults with passwords, accessible only by you, and integrates seamlessly with your device's file system. Protect your privacy and ensure your data remains confidential.

Cloud data encryptionPassword-protected vaultsFace ID/Touch ID unlock
📊 Productivity
(446)
free with in-app purchases
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7
Standard Notes
Standard Notes
Standard Notes
End-to-end encrypted notes
Free

Securely capture and sync your thoughts across all devices with end-to-end encryption. This app offers a simple, lasting place for all your notes, from personal thoughts to sensitive information, with robust privacy features.

End-to-end encryptionCross-device syncingOffline access
📊 Productivity
(3.8K)
free with in-app purchases
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8
Proton Authenticator & 2FA
Proton Authenticator & 2FA
Proton Authenticator & 2FA
Secure verification, MFA & OTP
Free

Securely manage your two-factor authentication codes with an open-source, end-to-end encrypted authenticator app. It offers seamless cross-device syncing, effortless import from other apps, and robust backup options, all protected by strict Swiss privacy laws. Take control of your digital security with a trusted and private solution.

End-to-end encrypted iCloud syncEffortless import from other authenticatorsSecure backup and export
📊 Productivity
(741)
free
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9
Lumo AI by Proton
Lumo AI by Proton
Lumo AI by Proton
Private Assistant from Europe
Free

This AI assistant prioritizes your privacy, offering help with productivity, curiosity, and staying informed. Developed by the team behind trusted encrypted services, it ensures your data remains secure.

Privacy-first AI assistantBoost productivitySatisfy curiosity
📊 Productivity
(561)
free with in-app purchases
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10
Super Productivity
Super Productivity
Super Productivity
ToDo List & Time Tracker
Free

This app helps you plan, focus, and complete your work with a to-do list, time tracker, and integrations. It offers features for deep work, privacy, and seamless connection with project management tools.

Fast to-do listPrecise time trackingPomodoro and focus timers
📊 Productivity
(40)
free
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