Helpful
Like others I used this to measure rpm on my lawnmower. It helped me diagnose a problem and saved me a trip to the repair shop. Worth the fee in my case - saved me some time and money.
Did not work
Needed to monitor and adjust the idle on my motorcycle.
Did not once register a live rpm reading.
No matter what settings I adjust it still held the same 4 digit reading in red.
I placed my phone even directly behind the exhaust and the number read the same even tho I raised and lowered the actual rpm.
I had hoped from the review I read that this would be my savior but instead just a loss of money.
Did not once register a live rpm reading.
No matter what settings I adjust it still held the same 4 digit reading in red.
I placed my phone even directly behind the exhaust and the number read the same even tho I raised and lowered the actual rpm.
I had hoped from the review I read that this would be my savior but instead just a loss of money.
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Fonctionne super bien
Il faut bien faire ses réglages avant !
Can’t save config
Good app to troubleshoot, but after find the good parameter the app don’t have option to save parameter
Engine RPM
I just replaced my old mechanical tachometer on my Isuzu 4 cylinder marine diesel on my sailboat with an electrical one driven thru the alternator and Balmar MC 618 regulator. Following the instructions on the tach and the RPM app it all danced perfectly and accurately! Simple accurate!
Works Well - Works as Described
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.
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Great concept. Great execution. Great price!
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!
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!
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Frustrating
I just want my 9 dollars back. Sick of trying to get this to work.
Very good
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
Got my snowblower working
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.
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Smart, solid app, works every time
An indispensable shop tool
Works as advertised
The documentation explains exactly how this works, and what the limitations are. There are some big advantages too: low cost and no need to touch the engine.
I used this to tune my old rototiller engine. It took some experimentation on where to position my phone near the engine, but I was able to get a strong signal and confirm max RPM and idle RPM.
I used this to tune my old rototiller engine. It took some experimentation on where to position my phone near the engine, but I was able to get a strong signal and confirm max RPM and idle RPM.
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Pricey but works good.
This was a little more expensive that I would have liked but once I used it I would say it’s defiantly useful. Used it to check low and high speed of my lawnmowers and it’s right on. Just slide around the hint rpm as it’s running and it finds the speed right away. It’s also cool that you can also see the audio waveform. The app doesn’t look to fancy but as long as it keeps working with future iOS updates I’ll be happy.
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Worst App I‘ve ever bought
If you want to waste your money buy this App
Engine RPS does not work at all in my motorcycle BMW - 2cyl 4 stroke
Engine RPS does not work at all in my motorcycle BMW - 2cyl 4 stroke
Eher mäßig
Bin mit den Messungen unzufrieden. Erklärung der Funktionen innerhalb der App unzureichend. – E-Motor garnicht möglich zu messen.
Response from developer
There is a detailed operations manual that can be downloaded from our support webpage: http://tunelab-world.com/tach The manual explains the limitations of the app.
Excellent Tool
This app worked very well to help me set the idle on my Royal Enfield 500cc single cylinder motorcycle. It picked up the “thump” of the engine immediately thus allowing me to fine tune the engine’s RPM to specification. 100% pleased!
Expensive and complicated but it works....
1- Read all the help pages beforehand; it’ll take you about 5-10 minutes but well worth it.
2- I used to set idle on a 2 stroke fuel injected motorcycle where the idle is critical: too high and the bike runs too lean, too low and it bogs down in low RPM starts.
3- At first I had it set up to sample every 3 seconds. That was too long. So I cut to 3/4 of a second and it was less of a hassle. I was able to guesstimate the current RPM’s at 1500, (actual was closer to 1700), so I set up the software that way, kept making small adjustments on idle screw until
I got it just right.
4- Logging the RPMs and times was a nice feature.
5- to get a 5 star price needs to come down materially or ease of use must improve significantly.
Overall I’m happy with this given the alternatives.
2- I used to set idle on a 2 stroke fuel injected motorcycle where the idle is critical: too high and the bike runs too lean, too low and it bogs down in low RPM starts.
3- At first I had it set up to sample every 3 seconds. That was too long. So I cut to 3/4 of a second and it was less of a hassle. I was able to guesstimate the current RPM’s at 1500, (actual was closer to 1700), so I set up the software that way, kept making small adjustments on idle screw until
I got it just right.
4- Logging the RPMs and times was a nice feature.
5- to get a 5 star price needs to come down materially or ease of use must improve significantly.
Overall I’m happy with this given the alternatives.
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impressive
Allowed me to set my chainsaw high speed mixture. I was running 2k rpm rich, didn’t know how much power I was missing. Struggled a bit with idle reading, but that’s understandable because a 1-cylinder 2-cycle engine is lumpy at low speed. Increasing sample length did the trick.
Much better than spending $100+ for the Stihl tachometer. Impressive piece of software.
Much better than spending $100+ for the Stihl tachometer. Impressive piece of software.
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Swan
Worked perfectly. I used this app to check and reset the operating speed of a lawnmower. I found the mower was over 300rpm down on the specified engine speed, which equated to 0.5hp lost. Adjusted running speed to specified value and now it mows like a boss! Cheaper, quicker and easier than buying a tachometer. Don't be put off by the +/-10% shown on the sample page; it relates to an operating mode where the app scans around an expected rpm within a given tolerance range to avoid possible errors due to secondary harmonics, thus providing the most accurate measurement. It is not an error band on the measured rpm. The app can be run in an 'auto' mode if the expected rpm is not known. I recommend this app if you need to measure an engine's speed under steady conditions.
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Works Great!
I used this to check the RPM on a couple of lawnmowers I have. I set the engine type, set the hint, and it found the correct rpm reading very quickly. I don't think I could go out and buy a tach for ten bucks or get it hooked up and working this easily.
