3.8
3.84615 star

Total 24 Positive Reviews

Engine RPM App User Positive Comments 2024

Engine RPM app received 24 positive comments and reviews by users. Can you share your positive thoughts about engine rpm?

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Engine RPM for Positive User Reviews

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..Version: 2.3

Very goodMust 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.Version: 2.4.1

Engine RPMEven works in a Renault Clio sport whilst zooming down a Swiss motorway with the radio on, more importantly to me, it enabled me to set up the engine running correctly on my Royal Enfield single cylinder Bullet motorcycle! Sometimes need to use one of the manual modes, but this does work for me..Version: 2.1

Great App for any engine tuningI 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..Version: 2.1

Worth every penny!!5 Star app!! It def is an app you need to get familiar w. I suggest reading every help screen too get an understanding of how the app works. I got this app to check my WOT on my outboard. I practiced on my motorcycle. After hooking my comp to my power commander and finding my RPMs I started tinkering w the app. Once I understood and got the frequency lined up w the red markers the RPMs matched to a T..love it!!.Version: 1.1

Works greatWorks great in my single engine airplane. Great to have as a backup when in IFR conditions..Version: 1.1

Does what I needNeeded a tachometer to check RPM of a stationary 12 liter engine with little muffler. For my situation this app works incredibly well. Gives accurate readings even quite some distance from the engine (anywhere the steady roar of the engine can be heard) On the other hand, I've had little success on vehicle engines. Other noises (ac compressor, fan) tend to drown the highly muffled exhaust sound. Also, this tach does not respond well to rapidly changing engine speed..Version: 1.1

Read manual...and it worksThis app is awesome. However a trained monkey could not use it, you MUST read the directions, however, if you set the parameters, watch the graph at the bottom and read the directions, you will always have a RPM meter around for all engines that Emmit sound. Honestly I use this for all my snowblowers, lawn mowers and chainsaws. Works great, but you do need to watch the graph read the directions and it helps to know what RPM's it 'should' be running at. Mowers and blowers are all 3600 RPM, saws are 13,600 rpm wide open. Again trained monkey can not use this, you need a brain and it will confuse you for an hour until you read the directions, then it works nicely. And for 9$, saves me lots of money on all the machines I want an RPM meter for to make carb adjustments..Version: 2.1

Works real good!Definitely worth the cost. I used it to calibrate my analog diesel tachometer and it is way cheaper than buying a dedicated revmeter to do one job. Worked for me while sitting at the instrument cluster with a screwdriver so it offers a big advantage over pulley-based measurements that make you run back and forth while RPM may change. Two important points! 1) It cannot measure RPMs of electric motors unless for some reason they emit audio. 2) You have to give the app some idea of a range to work in. I used known transmission gearing to get close, and the app zeroed it in for me. Great idea!.Version: 2.1

Very useful app! Cheaper than a photo tach...I used this app to calibrate alternator-driven tachometers on both a 3 cylinder Diesel and a 1 cylinder Diesel engine with great success. However, you have to use a little common sense when interpreting the readings as they can jump around by a few 1000 RPM's depending on the location of your iPhone and the engine sound it's picking up..Version: 0

ImpressiveAllowed 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..Version: 2.3

Very versatileOne thing you need to understand is that this program is very sophisticated. It is has many tools to make it as accurate as possible. It works on sounds, not electrical impulses. I had a problem that was resolved within moments. I didn't have certain parameters set correctly in order to see what the program is analyzing. All I did was email the programmer and the issue was resolved. You DO NOT need a physics degree to use this product, you need patients and the ability to become familiar with what the tools that you are not used to working with. There are tools in this program to make it easy to pinpoint the harmonic peaks for the engine that you are working on. Eliminating excess noise will help, keeping in mind that this program is not using magic it is using sound waves to determine engine speeds. All the negative feedback that I have read seems to be from someone that thinks that they should just stick their phone against an engine and it will give them an exact read out of the engine RPM... If you read the specs on your phone, you may find that those capabilities are fairly limited.... IN CLOSING: If you are someone who would use a specialty tool to find engine RPM on a daily basis, then maybe a $70 specialty tool is something you would need. If you are the everyday do it yourselfer, then this product will save you a lot of money and time. You don't need to maintain a specialty tool and hope that the batteries aren't dead when you need the tool. You don't want to blow up a perfectly good engine by not setting the engine speed to spec either..Version: 1.1

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!.Version: 2.4.1

Got my snowblower workingWas 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..Version: 2.4.1

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..Version: 2.3

Works as advertisedThe 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..Version: 2.4.1

SwanWorked 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..Version: 2.3

Smart, solid app, works every timeAn indispensable shop tool.Version: 2.4.1

Works on small enginesI was happy to see that it did work while setting the RPM on my snowblower (4 cycle). I didn't have the time or the desire to understand the app, so I just put it on Auto, and it did a better job on the output. I was not able to compare its output with an electrical input meter, but the engine did sound about right. It will suffice for now under my deciphering. Nice job!.Version: 2.1

Works!!!Works as advertised. However, you must read AND understand the directions. Caution, you just can't turn it on and expect it to work..Version: 0

Excellent ToolThis 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!.Version: 2.3

Great Support. Check suitability thoughI thought there were no reviews so jumped in. Unfortunately not the magic bullet I wanted but that's not the fault of the app. (wanted to check rpm from some in car race footage). Support was FANTASTIC and helped me find a way to get the answer I wanted as best as possible. It's not a replacement for a tacho or for measuring a rapidly changing RPM. But it is a very clever app and they seem to me to be very knowledgeable on the subject matter. Be realistic and fair and check it is suitable for what you expect to use it on..Version: 1.1

Performs quite adequatelyThis 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..Version: 1.1

It does work and does provide RPMOnce you figure out how to configure the app for your engine it works. It's not perfect tends to bounce around could use an output filter. You have to play around with this app to get it working right. It's not perfect but I was able adjust my carb to 3600 rpm ie snow blower..Version: 2.1


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