Belty - Belt Tuner is made and published by Coby Lai. AppBrain is an independent app data site and isn't affiliated with Coby Lai. The app name, icon, screenshots and description belong to Coby Lai and are shown as published on the App Store.
AppBrain's verdict
- Rating on App Store
- 5.00
- 5 ratings
- Last updated
- August 2, 2026
It doesn't have enough ratings yet to judge what users think.
Rankings
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Competitors
Similar apps and more from Coby LaiAlternatives to Belty - Belt Tuner
Releases
Updates seen on the App Store- Version
- 1.1
- Launched
- July 2026
No changelog data
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Technology
Found in the app by AppBrain- Price
- Free
- App size
- 1.45 MB
- Content rating
- Everyone
Technologies used by Belty - Belt Tuner
About the app and developer
About Belty - Belt Tuner
Belty - Belt Tuner is an utilities app developed by Coby Lai.
User Ratings
Belty - Belt Tuner is rated 5.00 out of 5 stars. The rating is based on 5 ratings.
App Information
Belty - Belt Tuner is freely available from the App Store. The app size is 1.45 MB. The latest version available is 1.1. The last update was on August 2, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since July 2026.
Developer information for Coby Lai
Address:
Store listing
By Coby Lai, from the App Store
Description by Coby Lai Written by the developer, not by AppBrain. Click to read.
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.