Secure Calendars

Editor's Choice
  • 🏆 Editor's Choice

Free Type

Free Type BTN
  • 📖 Open Source
  • 🎁 Free Tool
  •  🔓 Freemium Tool
  •   🕓 Free to Try
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2

Proton Calendar

Proton Calendar is a safe calendar that automatically secures all your events with end-to-end encryption. Events received from people who use other calendars are also secured with zero-knowledge encryption.
📖 Open Source  🔓 Freemium Tool
1

Tutanota Calendar

Tutanota Calendar is a secure calendar with built-in encryption that guarantees that your calendar belongs to you. No unauthorized person can decrypt or read your data.
 🔓 Freemium Tool 📖 Open Source
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📖 Open Source: free and open-source software (FOSS), the ultimate free solution, is often completely free, but some exceptions are offered as a freemium.

🎁 Free Tool: FOSS or Freeware software, including Proprietary solutions, offered for free in its full version with all features and no limitations. Naturally, many tools in this category are also open-sourced.

🔓 Freemium Tool: a free version of paid software or app, offered with some limitations (limited features, limited support, limited usage, etc.). In many cases, the free plan can be enough for you.

🕓 Free to Try: a free trial lets you experience the product briefly before buying. Since it’s not a classic free solution, you won’t find many such items in the directory. The ones we did add are highly recommended.

🎯 Free Micro Tool: a free simple tool that performs a basic and specific task. Those tools come to solve a particular problem and don’t include too many options and features.

📚 Free Resource: a variety of helpful free stuff we find online, such as free courses, all kinds of templates, graphic assets, video and audio assets, eBooks, audiobooks, themes, or anything else free and useful.

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