One Habit - Remember Why
Daily habit tracker & streaks
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
One habit at a time. Seven days free, then one single payment - no subscription, ever.
One habit changes everything.
Not five goals. Not a long list of resolutions. One habit - tracked daily, backed by everything science knows about behavior change.
Most habit tracker apps overwhelm you with features. One Habit does the opposite. It strips everything down to what actually works: one clear focus, one personal reason, and every psychological tool in the book to help you follow through.
Built to make you stick - not just track.
WHAT MAKES ONE HABIT DIFFERENT
One habit at a time
Research consistently shows that trying to build multiple habits at once leads to failure. One Habit keeps you focused on the single change that matters most right now.
Your photo. Your reason. Your fuel.
Add a personal photo and write your why. Every time you open the app, you're reminded not just what you're doing - but why it matters to you.
More than yes or no
Some days you give it 100 percent, some days 40. Log how it actually went, add a one-line note, and keep an honest record instead of a flattering one. Your chart tells the truth.
Every habit you finish becomes a card
Complete a habit and it turns into a collectible card. Flip it over for your stats and the thoughts you noted along the way. Your shelf of proof.
Daily reminders that actually reach you
Set a daily reminder at your chosen time, in your own words. One Habit keeps your goal visible even when life gets busy.
Home screen widget
Your habit - with your personal photo and motivational line - and your streak live on your home screen. One tap to mark it done, without even opening the app.
Miss a day? Spin your way back.
Life happens. One Habit doesn't punish you for missing a day - instead, it gives you a chance to rescue your streak with a small make-up task. Because consistency over time matters more than perfection.
WHO IS ONE HABIT FOR
One Habit is for anyone who has started a habit tracker before - and quit. For anyone who knows what they want to change but can't seem to make it last. For anyone who's tried willpower alone and found it wasn't enough.
This app was built by someone who needed it. Every feature exists because it solves a real psychological barrier to follow-through.
FEATURES
Habit tracker with a daily percentage check-in
Personal photo and motivation text
Daily reminder notifications
Home screen widget
Visual consistency tracker
Collectible cards
PDF export of your progress
Works fully offline
No account required
PRIVACY
Your habits, photos and notes stay on your device. The only exception is your purchase, handled by Apple and managed by RevenueCat.
One Habit - so you don't forget why you started.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
One Habit now speaks French and Portuguese - five languages in total.
The developer, Sandra Zanglein, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Sandra Zanglein
- Size
- 53.8 MB
- Category
- Productivity
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- One Habit Lifetime $9.99
- Copyright
- © 2026 Szet Studios