Engine RPM

The Engine RPM is now available for $8.99 for both iPhone and iPad owners.The application is designed for use in English language. It weighs in at only 0.2 MB to download. The new Engine RPM app version 1.1 has been updated on 2014-11-19. The Apple Store includes a very useful feature that will check if your device and iOS version are both compatible with the app. Most iPhone and iPad are compatible. Here is the app`s compatibility information: Compatible with iPhone, iPod touch, and iPad. Requires iOS 3.0 or later
Bottom Line: For more information about Engine RPM check developer Real-Time Specialties`s website : http://tunelab-world.com/tach

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                     Works Great Philip Beatty

This app does not seem to work I ve tried it several times and get the same results The display only shows blanks and intermittently flashes incorrect data I m trying to find a way to get my money refunded but no luck so far I am very disappointed in this application     Steamed Un- appy with this app

I have tried all the different settings and this app is a total waste of money I wish they gave you a week to try it out before purchase Does not get remotely close on jet ski V8 truck snow blower or lawnmower DO NOT BUY     Not impressed P Cross

I bought this app 8 99 to save some money on a hand held single purpose device at around 100 I read the manual and have adjusted all the settings It seems to work only when you tell it what you think the RPMs should be It agrees for a moment then jumps around as much as 2 000 RPMs between refresh I was hoping to tune my yard machines but it looks like I need to spend the hundred bucks Can I get a refund     Really 🐨🐨🐨🐨🐨🐨🐨🐨🐨

I 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                 Works on small engines LFA210

This 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                 Read manual and it works Ianb221418

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                     Works real good Gnarllie

Once 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                     It does work and does provide RPM watomb

I tested this app on several electric motors ranging from 7 000 to 30 000 rpm and it gave me completely inaccurate readouts every time Not only that but it randomly skips between too significantly different numbers such as 3 000 and 7 000 or between 10 000 and 20 000 Even in a sound proof room it gives random readouts when no sound is heard How can the app creator justify charging so much for an obviously bugged app I really would like my money back     Completely inaccurate Do not buy >hobbes<

Have tried several things and can not get it to match up to RPM Must not be using properly but seems to jump around from one number to another sometimes 1000 RPM differences         Can not get it to work ranj5

The app opens for about a second and then closes it is a total waste of money does not work at all     Rip off Ryanhimley

even cars on street interferes with readings completely useless and overpriced     waste of money Ruu_Dii

Worthless on a yamaha single cylinder bike     Waste Panda style 999

Tried it on 2 cars and a tractor for which we really needed the measurement After reading all of the help and trying for 30 minutes we could not get a reliable reading on any of the engines Net net You tell it where to and it tells you sure there s a harmonic near that range Worthless Wish I could get a refund     Disappointing RickSt

I wanted to use this app to set my idle speed on my lawnmower I set it up for 4 cycle single cylinder mode and turned on the range hint option With the range set to 10 it constantly read either the top of the range or the bottom of the range I adjusted up to 20 and tried every possible combination of harmonics high mid and low without ever getting a consistent reading I can tell by familiarity with the tone of the engine that it is close to the appropriate idle speed 2100 rpm but never got a reading with this app to confirm that it is set appropriately For fun I also tried to find out the peak rpm at full throttle and had the same results at that range 3600 rpm Don t so what I did and waste 8 on this app trying to save time and money For twice the price you can get a wired tachometer and get an actual reading not a useless app that tells you nothing     Impossible to Use dcline414

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                     Worth every penny Flipmode Fitness

One 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                     Very versatile Mark Ace

The idea of this app is great and that is why I bought it I foolishly ignored all the negative reviews I could not get this app to report anything near an accurate RPM measurement     Fancy looking interface doesn t work Oritsky

Needed 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                     Does what I need sc_8

Works great in my single engine airplane Great to have as a backup when in IFR conditions                     Works great Pilot Red

This App is really hard to use Be advised you ll need a physics degree to have any success     RPM Skidmark7

Works as advertised However you must read AND understand the directions Caution you just can t turn it on and expect it to work                     Works Marty.com

I only tried it on two different stihl chainsaws 2 stroke single cylinder and it was garbage At idle 2600rpm it bounced from 300 to 6000 but mainly stayed around 850 I tried all the different settings with no luck It was a waste of money for me     No good for me mpolt81

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                 Very useful app Cheaper than a photo tach Saradawn

VERY disappointed in this expensive app I have previously used an RPM from sound app on a PC and it worked quite well This one didn t have a clue Used it in a single engine airplane recommended use in the app description and it didn t have a clue Giving it a hint didn t help at all Actual RPM was about 2 500 and it would jump from many thousands to a few hundred And back again Best use would be as a random number generator Save your money Guess that s what I get for being an early adopter     Expensive app that doesn t work Flyboy90218