About Dayspan

Dayspan is made by Chaoyu Zhang, an independent developer. One person writes the code, draws the screens, answers the email, and ships the updates. There is no company behind it and no investor to please.

Why it exists

Most day counters point one way. They count down to a wedding, or they count up from a quit date, and you keep two apps to see both halves of the same life. Dayspan puts them on one card: how many days it has been, and how many days to go, at the same time. It is built to be kept rather than managed — no feed, no streak guilt, no notifications begging you to come back.

How it is paid for

By the people who use it. Dayspan has no ads, no analytics, no trackers, and no account to sign up for. The free version is genuinely usable; Dayspan Pro is there if you want unlimited cards, every theme, and watermark-free share cards. That is the whole business model. It is also why your data never leaves your device — there is nothing to be gained by collecting it.

Contact

Real email, read by a real person, usually answered within a day or two. Bug reports and feature requests are both welcome, and so is telling me the app got something wrong.

Email
iamadk@gmail.com
App Store
Chaoyu Zhang on the App Store
GitHub
github.com/iamadk