Didu: Did You Know

A surprising fact every day

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

One true thing about the world, every morning. Didu sends you one fascinating, carefully researched drop each day. Two minutes to read, and nothing else waiting when you finish. You don't choose the subject. That's the point. The best thing you learn this week will be something you would never have looked for. Seven themes, one for each day of the week: psychology, science, history, economy, nature, art, and the universe. Every drop is checked against two credible sources before it goes out. Not random quotes or empty hacks. If it isn't true, you won't find it in Didu. Save the ones you love. A short quiz twice a week brings them back, so what you read becomes what you know. No feed. No ads. No tracking. Nothing built to keep you scrolling. Didu isn't built to impress you on day one. It's built to change you by day thirty. Free to try. Then one price for the year, and nothing else ever. SUBSCRIPTION Didu is a yearly subscription with a free trial. The trial length and the price are shown in the app before you confirm. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. You can manage or cancel it in your Apple Account settings. Terms: https://didu.app/terms Privacy: https://didu.app/privacy

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Version 2.20.2

The developer, Didu Labs ApS, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Contact Info
    • Identifiers
    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Didu Labs ApS
Size
  • 64.7 MB
Category
  • Education
Compatibility
Requires iOS 16.4 or later.
  • iPhone
    Requires iOS 16.4 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
Languages
  • English
Age Rating
9+
In-App Purchases
Yes
Copyright
  • © 2026 Didu Labs ApS
  • Developer Website
  • Privacy Policy