Reviews of Tachometer - RPM measuring

By: HookShotStudio App

List of user reviews and ratings for Tachometer - RPM measuring

Total ratings

2.64 (Rating count: 701)

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Review summary

Most reviews condemn the app for intrusive ads and unreliability, reporting inaccurate or random RPM readings and limited applicability to real-world engines. A couple of users note it can measure the phone's RPM and even verify RPM after maintenance in rare cases, but the overall sentiment is that the app is largely unusable for its intended purpose. Camera access problems and closing bugs are also mentioned, reinforcing a perception of poor usability.

Pros

It can measure RPM on the phone, and in some cases seems to work as intended.
In at least one review, it helped verify RPM after maintenance (e.g., 33 rpm).
Some users found it usable for certain tasks.

Cons

Intrusive fullscreen ads; ads everywhere.
Not working properly, unreliable, and often produces random or inaccurate RPM readings.
Not applicable to small engines or general-use cases; limited applicability.
Camera feature is not usable or cannot view the object image.
Bugs or usability issues like slow performance and difficulty closing the app.

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User Reviews

Recent rating average: 1.70

All time rating average: 2.64

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77% (56)

Date	Author	Comment
2026-08-16	Ma*****	instructions are where?
instructions are where?
2026-08-13	Ch*****	doesn't work. it doesn't matter how close or what direction I put the Galaxy s24, zero rpm from a 3/4 hp 120v motor on a bench.
doesn't work. it doesn't matter how close or what direction I put the Galaxy s24, zero rpm from a 3/4 hp 120v motor on a bench.
2026-08-11	SA*****	3rd class bougus apps
3rd class bougus apps
2026-08-09	D *****	it ain't picking up nothing
it ain't picking up nothing
2026-08-05	Ch*****	doesn't work to measure rpm of motorcycle
doesn't work to measure rpm of motorcycle
2026-07-13	Ri*****	just perfect. I rarely rate apps, but this just works. rotation might be smoother - some configurable damping erc
just perfect. I rarely rate apps, but this just works. rotation might be smoother - some configurable damping erc
2026-07-07	ma*****	very bad dnt install
very bad dnt install
2026-07-06	st*****	ok app
ok app
2026-07-04	Da*****	fan rpm
fan rpm
2026-06-29	Tr*****	doesnt work
doesnt work