Engine RPM
Engine RPM is made and published by Real-Time Specialties. AppBrain is an independent app data site and isn't affiliated with Real-Time Specialties. The app name, icon, screenshots and description belong to Real-Time Specialties and are shown as published on Google Play.
AppBrain's verdict
EstablishedNiche- Rating on Google Play
- 3.54
- 23 ratings
- Installs
- 2.1 thousand
- Last updated
- July 21, 2026
- Ads
- No ads
- Size
- 1.68 MB
Engine RPM is a niche app, with 2.1 thousand installs. It doesn't have enough ratings yet to judge what users think.
Pros & Cons
- Sound-based RPM estimation from engine acoustics
- Configurable for 2-cycle and 4-cycle engines
- Supports unusual configurations such as reduction gear
- Often within 10 RPM accuracy when locked-on
- Performance limited with modern mufflers or when listening from inside a closed car.
- Lacks OBD, data charts, and broader sensor integrations that some competitors offer (based on keywords seen for rivals).
User feedback
Ratings and reviews on Google PlayComments on Engine RPM for Android
Google Play Rating history and histogram
Store listing
By Real-Time Specialties, from Google Play“Calculate and display RPM of an engine from the sound made by the engine.”
Description by Real-Time Specialties Written by the developer, not by AppBrain. Click to read.
The Engine RPM app is designed to listen to the sound of an engine and from that sound, calculate and display the RPM of that engine. However the app cannot determine the RPM if the sound is inadequate, or if the app has not been properly configured for that specific engine. The sound must be clear and steady and must not have too much noise in the background. The app works the best on engines with minimal or no mufflers, such as motorcycles, lawnmowers, leaf blowers, small aircraft engines, and the like. It works better at high RPMs than at idle. For cars with modern mufflers the app will not be able to measure the RPM near idle, or if the app is listening from inside the car with the doors and windows closed. The sound inside a modern car is much too quiet for this to work.
Engine RPM is not designed to be a replacement for an operational tachometer. For safety reasons it should only be used as a diagnostic and calibration tool for things like engine tuning or checking the calibration of a regular tachometer. Engine RPM is very accurate when it is able to lock on to the sound, often to within 10 RPM or better. The app is configurable for 2-cycle and 4-cycle engines and includes a generic configuration for unusual cases, such as a reduction gear. The normal RPM range is 400 to 90,000 RPM. For more information download the operations manual from:
www.tunelab-world.com/rpm
Recent changes:
This app was recompiled for performance and compatibility with Android 16.
Safety and technology
Found in the app by AppBrain- Ads
- No ads
- Price
- $6.99
- Libraries
- ?
- App size
- 1.68 MB
- Content rating
- Everyone
Technologies used by Engine RPM
Releases
Updates seen on Google Play- Version
- 1.7
- Launched
- January 2020
Alternatives
Similar apps and more from Real-Time SpecialtiesAlternatives to Engine RPM
More from Real-Time Specialties
Installs
Tracked by AppBrain- Last 30 days
- 46
- Play install range
- 1+ thousand
- Launched
- January 2020
Installs over time
Engine RPM has been installed 2.1 thousand times. Over the past 30 days, it has been installed 46 times.
Rankings
Google Play top chartsGoogle Play Rankings for Engine RPM
About the app and developer
About Engine RPM
Engine RPM is a tools app developed by Real-Time Specialties.
Install Statistics
Engine RPM has been installed 2.1 thousand times. In the last 30 days, the app was installed 46 times.
User Ratings
Engine RPM is rated 3.54 out of 5 stars. The rating is based on 23 ratings.
App Information
Engine RPM costs $6.99. The app size is 1.68 MB. The latest version available is 1.7. The last update was on July 21, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play since January 2020.
App Performance Report
Get a detailed PDF report for Engine RPM with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more
Get PDF Report — $29Developer information for Real-Time Specialties
Frequently asked questions about Engine RPM
Is Engine RPM free?
No. Engine RPM costs $6.99 on Google Play.
Is Engine RPM still available?
Yes. Engine RPM is on Google Play, and the last update we saw was on July 21, 2026.
Does Engine RPM contain ads?
No. Google Play does not list Engine RPM as containing ads.
How large is Engine RPM?
Engine RPM is 1.68 MB.
Is Engine RPM suitable for children?
Google Play rates the content of Engine RPM as suitable for everyone.
How many times has Engine RPM been installed?
Google Play lists 1,000+ installs for Engine RPM.
How do people rate Engine RPM?
Engine RPM scores 3.54 out of 5 stars, from 23 ratings on Google Play.
Who made Engine RPM?
Engine RPM was developed by Real-Time Specialties. It is listed in the tools category on Google Play.
What are the best alternatives to Engine RPM?
People looking at Engine RPM also look at these tools apps: Potenza Drive: Engine Sounds, DragFX, RevHeadz Engine Sounds, RPM Speed & Wow, Engine Sound Simulator for EV.