📈Last 7 days+56 installs — 5% slower than the week before (+59) · 6/day since Oct 9
🏆Among Auto & Vehicles appstop 13% by installs gained this week (69 peers growing)
🛠Updatesquiet · updated 42 days ago
Installs since launch
+153 installs
since Oct 9
Update history
1.5Oct 3, 2026 · seen Oct 16, 2026
First public release. Point your phone at a running engine and read its RPM on a live tachometer, or record a clip and get one number with every combustion marked.<br>Works with single-cylinder engines, two-stroke and four-stroke. No extra hardware, no account, and it works fully offline.
Only the current version so far — new entries appear as the app ships updates.
RPM Boss is an auto & vehicles app by MbY4M with 100+ downloads (about 170 estimated). +56 installs in the last 7 days. Released Oct 3, 2026. Install growth, rank history, SDKs and ad networks.
From the store listing: “Live tachometer for single-cylinder engines. Reads RPM from the engine's sound.”