Engine RPM

Was a little concerned when noticing most reviews are very old. Pleased to report it worked very well when setting the speed of my old two stroke Lawn Boy mower. As the author and other purchasers have noted, works best with a constant engine speed and no background noise. Also verified my Ranger’s idle speed with it’s tachometer, spot on.

Must have for small Eng repair shop to check quick for idle rpm. Works awesome. You have to set you cylinders and 2-4 strokes then it works like a charm. Highly recommended

Does not work on my iPhone 6 for either my marine 4 cycle gas engine or either of my cars. Any chance of a refund?

I have to admit that this is a great app for the iOS platform. I've used it to track engine rpm from my RC helicopter to RC planes to RC nitro and gas cars. It's a great app to use for so many other applications. I highly recommend this app. Works perfectly with iOS 7.

This app does exactly what it says it does, but it does require a modicum of intelligence to use. I have found it can get confused by extraneous noise, but with a clear signal it tracks rpms well. It also helps to have some idea of the speed you are trying to measure - and then to bracket that with upper and lower limits of around 50%. I use it for adjusting carbs and it does the job perfectly well.

Want a REFUND. Does not work. 1 star cause I needed to enter a star to review this app.

This app is a waste of money and time and space I bought it and tried it on 2 of my motors and nothing happend! DO NOT BUY

The Tiny Tach tachometer I’ve been using in my small engine work wasn’t extremely expensive, but it’s finicky and difficult to use when I’m tuning something like a chainsaw. This app, after a couple minutes glossing over the instructions, was almost intuitive to get to function. It will be really nice to be able to set this down and have both hands free to operate the throttle and adjust carburetor settings on equipment now. Large, easy to see display and controls plus other features I haven’t even gotten to will make my work SO much easier! Thanks guys, for all your hard work. I’m totally happy with the price!

I just want my 9 dollars back. Sick of trying to get this to work.

Was able to dial in my snowblower RPMs no problem. I do think the app should have the cycle/number of cylinders option right on the Home Screen, I think that would help out. Also, would be nice if it had good enough response times to react to transient surges, really it’s only useful for steady RPM values. But overall, did what I needed for much cheaper than a small engine tach.