We build a habit tracker simple enough to use on the day you are tired.

Seim helps you build habits with small things, done often enough. No account, no ads, no fees. Your profile, progress and history live on your own device, synced to no server at all.
Captured directly from the build running on a phone. Vietnamese and English, works offline, and every habit has its own day-by-day roadmap.





No 30-day streak is built from one day of determination. We designed the app so that doing one small thing on a tired day still counts as showing up.
No accounts, no server-side profile storage, no ads, no analytics SDKs. You delete your data from inside the app whenever you like.
Every recommended challenge states the reason it fits your goal and BMI, rather than handing you an unexplained list.
The AI coach does not diagnose and does not prescribe. If you are pregnant, injured or managing a condition, talk to a doctor first.
Two people build and maintain Seim