Belty - Belt Tuner
Coby Lai Utilities iPhoneiPadiPod touch
Belty - Belt Tuner is a free Utilities app for iPhone and iPad by Coby Lai. Rated 5.0/5 from 5 ratings. Requires iOS 17.0. Updated August 2, 2026.
- Rating
- 5.0
- 5 ratings
- Price
- Free
- on the App Store
- Size
- 1 MB
- Age 4+
- Updated
- Aug 2
- 2026 · v1.1
Screenshots
About Belty - Belt Tuner
Belty — Timing Belt Tuner Pluck a timing belt, and Belty tells you its frequency. Measure Real-time frequency analysis. Averages multiple plucks and reports the dominant frequency with a confidence interval, plus secondary tones for harmonic checking. Tune Set a target frequency and adjust the belt. A live indicator tells you tighter, looser, or on target, so you can dial in a span without stopping to re-measure. History Save, name, and favorite any measurement or calculation. Also includes a tension calculator (GT2 2mm/3mm, GT3 3mm, HTD 3M, HTD 5M, MXL, XL, plus custom belts from a datasheet), giving loose, medium, and tight targets in Hz and newtons, and a belt length calculator for open-belt geometry in both directions. Everything runs on device. No account, no data collected, no audio recorded. The mic is only used to listen to the belt.
Ratings & reviews
5.0
5 ratings
What’s new
Version 1.1 · Updated August 2, 2026
Themes, improved settings, bug fixes
App privacy
The developer, Coby Lai, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Belty - Belt Tuner
Looking for apps like Belty - Belt Tuner? Here are 6 similar apps on the App Store. The highest rated is Frequency Analyzer (4.5/5), and all 6 are free to download.
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Tension Meter Companion
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Prusa
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Belty - Belt Tuner | 5.0 / 5 (5 ratings) | Free | August 2, 2026 | |
| Tension Meter Companion | – | Free | Dec 31, 2025 | Compare |
| Frequency Counter Hz Tuner | 3.3 / 5 (6) | Free | Oct 18, 2026 | Compare |
| Frequency Detector Analyzer | 4.4 / 5 (22) | Free | Sep 8, 2026 | Compare |
| Sound Spectrum Analysis | 3.6 / 5 (42) | Free | Sep 5, 2026 | Compare |
| Frequency Analyzer | 4.5 / 5 (182) | Free | Oct 3, 2026 | Compare |
| Prusa | 4.0 / 5 (117) | Free | Oct 22, 2026 | Compare |
Compare Belty - Belt Tuner with the top alternatives: ratings, updates, ASO score and keyword gaps →