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One Second Diary

One Second Diary is a free, open-source notes app for Android and iOS. Record 1 second everyday & create the movie of your life. It has 416 GitHub stars and is released under the MIT license, and you can install it from Google Play.

github.com/KyleKun/one_second_diary (opens in a new tab)

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About One Second Diary

Record 1 second everyday & create the movie of your life. After installing some related apps and not being fully satisfied with any of them, I decided to create my own, featuring the two aspects that I wanted the most: Minimalist and 100% Private.

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FAQ

One Second Diary FAQ

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Is One Second Diary free and open source?

Yes. One Second Diary's source code is public on GitHub under the MIT license, which is OSI-approved or FSF-free.

How do I install One Second Diary?

You can install One Second Diary from Google Play; the links are on this page. Its GitHub repository also publishes releases (latest: v1.7.5).

Is One Second Diary still maintained?

The repository's most recent commit was on Oct 24, 2026. appsgit only lists apps whose repository had a commit in the last six months.