Engine RPM
Engine RPM generates an estimated $100–$500/month in revenue from 10–80 downloads/month on the App Store, according to AppCurrents estimates (updated 2026-06-17).
| Est. revenue / month | $100–$500 |
|---|---|
| Est. downloads / month | 10–80 |
| Estimate confidence | medium |
| Pricing | Paid $8.99 |
| Rating | 4.03 ★ (35 ratings) |
| Category | Utilities |
| Best chart rank | #59 Utilities Paid |
| Released | 02.12.2009 |
| App last updated | 13.09.2023 |
| Platform | iOS |
Modeled monthly estimate · rating velocity · medium confidence
About
Measure the RPM of an engine by analyzing the sound it makes. Engine RPM listens to the sound of a running engine and uses advanced signal processing algorithms to extract the frequency of that sound and calculate the RPM. This app is primarily for setup and diagnostics of engines. After setting the the number of cylinders and whether the engine is a 2-stroke or 4-stroke engine, the app can wor…
Trends & analysis
Chart rank trend
US · categoryWhy it's surfacing
Scout 14Ratings & velocity
★ 0 in windowRating distribution
74% positive · 35 ratingsGeographic reach
best rank · 6 storefrontsRevenue & downloads trend
ARPU $6Update history
1 update tracked- v2.52.8y ago
* Optional Low-Pass Filtering to suppress high frequency interfering sounds. * Optional signal rectification to transform high frequency percussive bursts into low frequencies that were otherwise too low to be detected by the microphone. * Older unreliable modes of operation were removed (auto ranging and tracking) in favor of the more reliable Hint Band mode. * Built-in help is greatly expanded.
Engine RPM — FAQ
How much money does Engine RPM make?
According to AppCurrents estimates, Engine RPM generates approximately $100–$500 per month (medium confidence), modeled from its the App Store chart performance, rating velocity, and monetization signals.
How many downloads does Engine RPM get?
Engine RPM sees an estimated 10–80 downloads per month on the App Store, per AppCurrents modeling.
Is Engine RPM free?
Engine RPM is a paid app priced at $8.99 on the App Store.
What is Engine RPM's rating?
Engine RPM holds a 4.03-star average from 35 ratings on the App Store. It currently ranks #59 on the Utilities paid chart.
When was Engine RPM released?
Engine RPM launched on the App Store on 02.12.2009. Its latest version shipped 13.09.2023.
