01The familiar cycle
Sunday ambition. Wednesday guilt.
Six new habits. A perfect plan. Then life happens, you fall behind, and the tracker becomes one more thing to avoid.
A habit tracker for people who keep restarting
One habit.
Twenty-one days.
Actually yours.
You don’t need another fresh start. You need one thing to stick. Start small, show up, and earn your next habit.
Start your first twenty-one Made for iPhone and iPad.
Made for real life.
Made for real life.
13 small wins. A different kind of momentum.
✓
One thing. Done.Now go live your day.
01 / 21A little less. A little every day.
A smaller promise. A better chance of keeping it.One habit at a time
01 – A little less, on purpose
You’ve started plenty.
Let’s finish something.
02A different approach
Less to manage. More to finish.
Pick one thing that matters. Give it your attention. No growing checklist. No dashboard of everything you haven’t done.
03The Twenty-One way
One habit. Then the next.
Twenty-one consecutive days unlock another habit. A little constraint that gives your good intentions somewhere to go.
Small enough to do. Good enough to count.
Progress you
can put a finger on.
One square for every day you show up. A finish line you can see, and a little proof that you’re doing it.
Try marking a dayYOUR ONE THINGINTERACTIVE PREVIEW
Read 20 pages
12 / 2102 – Nothing extra to figure out
Less app.
More living.
Pick it. Make it yours. Mark it done.
You’ve just learned the whole app.
Pick your one thing.
Something small. Something that matters to you.
Make it specific.
Twenty pages. Ten minutes. Your definition of done.
Show up. Mark it.
One tap, once a day. Then get on with your life.
See yourself stick.
Every day and every restart. All part of your story.
Swipe to explore
A promise, kept.A little every day adds up.
03 – Make room for your next chapter
The next habit
is earned.
Twenty-one days without a gap opens your next slot. Your first habit keeps counting, quietly. You’re ready for one more.
Had an off day? You’re still here.
The count restarts. Your history doesn’t disappear. Every attempt is part of getting there.
A small investment in showing up
Your first chapter.
On us.
One month free. Enough time for your first twenty-one, and the beginning of something good.
One app. Everything included. No ads, no tracking. Cancel anytime.TWENTY-ONE1 month free
$2.99/ month
After your free trial. Or $24.99 per year.
Prices in USD; local prices may vary.
- Every habit in the catalogue
- Daily reminders & a clear twenty-one
- Your complete history, restarts included
- No ads. No tracking.
For iPhone and iPad. One day at a time.
A few small details.
Why only one habit?
Starting is easy when everything feels possible. Following through gets harder when everything competes for your attention. Twenty-One gives one habit the space it needs before you add another.
What if I miss a day?
Your consecutive-day count starts again. Your previous attempts stay in your history, so a restart doesn’t erase the effort you’ve already made.
Does a habit really take twenty-one days?
There’s no universal timeline. Twenty-one is a clear, achievable first commitment, not a promise that every habit becomes automatic in three weeks. Your habit keeps counting after you reach it.
What happens to my data?
Your habits stay yours. Twenty-One has no ads and no tracking, and we don’t sell your data. You can delete your account from the app at any time. The details are in our Privacy Policy.
Not a whole new you.