OnceChat

One message a day, in turn

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

OnceChat is a quiet messaging app built around a simple idea: just one message a day. Away from endless notifications, constant replies, and the pressure of read receipts — you choose one message each day, carefully, and send it. That's OnceChat. ■ One message a day Just one message per day, taking turns. So every single letter matters. ■ Quietly gone in 24 hours Your words fade after 24 hours. Because nothing is kept, some things become easier to say. ■ No notifications No push notifications, ever. Open the app when you want to, at your own pace. A quiet place that never rushes you. ■ Today's letter Share one short public letter a day with all your friends. Send yours, and you can read theirs too — a new, reciprocal way to stay connected. ■ Thoughtfully secure No passwords — sign in with a passkey (biometrics). Messages are encrypted. No ads, and no third-party tracking. A calm space, like the quiet before dawn. Send your one letter today, with OnceChat.

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

Introducing Circles. - Exchange "today's letter" within a small named group — a seminar, a circle of friends. - Separate from your letter to all friends: one letter a day for each circle. - Everything still fades quietly after 24 hours. New users now see a screen for inviting friends. Plus other small improvements and bug fixes.

Version 1.2.0

The developer, Kosei Takanashi, 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
    • User Content
    • Identifiers
    • Diagnostics
    • Other 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
  • Kosei Takanashi
Size
  • 39.1 MB
Category
  • Social Networking
Compatibility
Requires iOS 15.1 or later.
  • iPhone
    Requires iOS 15.1 or later.
  • iPod touch
    Requires iOS 15.1 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English and Japanese
Age Rating
4+
  • 4+
  • Learn More
  • Contains
    Messaging and Chat
    User-Generated Content
Copyright
  • © 2026 Angelfrieren
  • Developer Website
  • Privacy Policy

    • You Might Also Like