chrtz
Sungsu Choi Health & Fitness iPhoneiPadiPod touch
chrtz is a free Health & Fitness app for iPhone and iPad by Sungsu Choi. Requires iOS 16.2. Updated February 28, 2026.
- Price
- Free
- on the App Store
- Size
- 59 MB
- Age 4+
- Updated
- Feb 28
- 2026 · v1.0.1
Screenshots
About chrtz
A step‑based character ranking app with heatmap visibility and group competition. chrtz turns your steps into rank. Pick your favorite character, compete in solo or group rankings, and climb the leaderboard. Top spots unlock visibility perks—like message highlights and a larger presence on the heatmap. Track progress with Live Activity, earn rewards, and customize your character’s look with avatars and backgrounds. Every step counts, and every rank change is real. Highlights Step‑based solo & group rankings Top‑rank visibility perks (message highlight, heatmap presence) Live Activity for quick progress checks Character customization (avatars & backgrounds) Events and rewards tied to activity
What’s new
Version 1.0.1 · Updated February 28, 2026
bug fixed
App privacy
The developer, Sungsu Choi, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to chrtz
Looking for apps like chrtz? Here are 6 similar apps on the App Store. The highest rated is Unhooked: Screen Time Pet (5.0/5), and all 6 are free to download.
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PepQuest
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nemupico: sleep pet app
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Unhooked: Screen Time Pet
5.0
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Wabbi: The Step Pet
5.0
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Treadmill Assistant
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Stepracers Team Step Challenge
4.5
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| chrtz | – | Free | February 28, 2026 | |
| PepQuest | – | Free | Sep 11, 2026 | Compare |
| nemupico: sleep pet app | – | Free | Jul 1, 2026 | Compare |
| Unhooked: Screen Time Pet | 5.0 / 5 (2) | Free | Oct 6, 2026 | Compare |
| Wabbi: The Step Pet | 5.0 / 5 (5) | Free | Oct 19, 2026 | Compare |
| Treadmill Assistant | – | Free | Oct 7, 2026 | Compare |
| Stepracers Team Step Challenge | 4.5 / 5 (10) | Free | Oct 6, 2026 | Compare |
Compare chrtz with the top alternatives: ratings, updates, ASO score and keyword gaps →