With this free, powerful application, you can easily calculate the RPM of any engine.
All you need to do is feed numbers to the app, and let your phone work its magic!
Bug fixes
![[HPA Q&A] What is a 'soft' and 'hard' rev limiter? How do they work? screenshot 1](https://i.ytimg.com/vi/Mwzy0HkHOS0/mqdefault.jpg)
9Apps 4.9
