RPM Calculator

PlayDevelop

About this app

Calculates RPM.

Visualize your vinyl record players RPM with this simple application.

Please consider this is the first version. Your phone requires a gyro meter to work. Not sure if you have one? Google your phonespecs and look for sensors.

What features are you missing? WE love feedback!

Ratings and reviews

Worked great on Moto X4 and old Aiwa turntable. Used a 45 adapter to place the phone level in the middle. Tested after using this app with side by side digital vs vinyl playback. It was accurate within 1 second on a 5:34 song ~ 0.3% margin of error. Considering that level of accuracy is close to standard for recording studios, this app exceeds my expectations.

Does what it does. Got my turntable averaging 3.36 (older belt drive) while still sounding great without the wow/flutter. Needs instructions, but place device in middle of what you want, spin it. To reset avg, tap anywhere on the screen. App has no tare/adjustments so it's all on how your phone handles the gyros and send info to the app

I have found the key to this app's success lies in the device you're using. Bigger, heavier phones read poorly IME. I happen to have a smaller, lighter Zenfone 10 and it produces far more accurate results on my deck vs. testing with my partner's heavier, bulkier Samsung device. YMMV.

What’s new

1.4
- Fixed decimals
- Added new icon
- Minor fixes and improvements

1.3
- New secret feature
- Ad free
- Bugfixes and improvements

1.2
- Minor bugfixes

1.1
- The research department have rewritten the algorithm. Now better then ever!

1.0
- First version. Beta. Please give feedback!