OneThing
Daily streak challenge app.
live
OneThing keeps a promise to yourself down to one line: pick a goal, do it today, watch the streak grow. No dashboards, no fifteen habits fighting for your attention — just the one you actually decided mattered.
What it does
- A single daily goal, tracked as an unbroken streak
- One tap to check in — no forms, no logging fields to fill out
- A reminder that shows up once a day, not a bombardment of notifications
- A daily quote to nudge you back in when motivation dips
- A shareable streak card, for the days you want proof you showed up
Why one goal, not a list
Most habit trackers grow a feature at a time until the home screen turns into a dashboard — sleep, water, steps, reading, and meditation all fighting for the same five minutes of attention. OneThing works backwards from that. It holds exactly one goal on purpose, because a habit you check in on once a day should take less time to log than it does to actually do.
Don't break the chain — the whole app is built around that one sentence.
Good fits
| You're trying to | OneThing helps by |
|---|---|
| Build a gym habit | One check-in a day, the streak keeps score |
| Prep for an exam | A daily minimum you can't talk yourself out of |
| Write something, daily | Removes the "did I already do enough today" debate |
| Break a bad habit | Makes the unbroken chain the thing you protect |
Free on iOS and Android, no account required — everything lives on your device.