- 73.9LEGITIMACY SCORE
- 75.4SAFETY SCORE
- 4+CONTENT RATING
- $8.99PRICE
What is Engine RPM? Description of Engine RPM 1583 chars
Measure the RPM of an engine by analyzing the sound it makes. Engine RPM listens to the sound of a running engine and uses advanced signal processing algorithms to extract the frequency of that sound and calculate the RPM.
This app is primarily for setup and diagnostics of engines. After setting the the number of cylinders and whether the engine is a 2-stroke or 4-stroke engine, the app can work with any internal combustion engine, from diesel tractors to aircraft engines to motorcycles to chainsaws. To use the app you must set an expected RPM range to guide the analysis algorithms to the correct RPM. A real-time graph of the autocorrelation graph is displayed to help in troubleshooting and adjusting the expected RPM range.
The analysis requires a clear sound from the engine without excessive interference from extraneous sounds. Do not expect to read the RPM of an engine while other things are making too much noise at the same time. The analysis also requires that the RPM be stable. It cannot read the RPM of an engine that is rapidly accelerating. For this reason, and because of the need for adjusting the expected RPM range, this app should not be considered a drop-in replacement for an operational tachometer.
Setup options include update periods from 93 milliseconds to 1.5 seconds, one to 12 cylinders, 2-stroke or 4-stroke, low-pass filtering, and signal clipping. The overall RPM range is 400 to 90,000 RPM (although at any one time, the operational range is typically +/- 30% around a nominal expected RPM). Precision is usually about +/- 10 RPM.
- Engine RPM App User Reviews
- Engine RPM Pros
- Engine RPM Cons
- Is Engine RPM legit?
- Should I download Engine RPM?
- Engine RPM Screenshots
- Product details of Engine RPM
Engine RPM App User Reviews
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Engine RPM Pros
✓ 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
✓ 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 RPM Positive ReviewsEngine RPM Cons
✗ Does not workDoes not work on my iPhone 6 for either my marine 4 cycle gas engine or either of my cars. Any chance of a refund?.Version: 2.1
✗ Impossible to UseI 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..Version: 1.1
✗ Engine RPM Negative ReviewsIs Engine RPM legit?
✅ Yes. Engine RPM is legit, but not 100% legit to us. This conclusion was arrived at by running over 60 Engine RPM user reviews through our NLP machine learning process to determine if users believe the app is legitimate or not. Based on this, AppSupports Legitimacy Score for Engine RPM is 73.9/100.
Is Engine RPM safe?
✅ Yes. Engine RPM is quiet safe to use. This is based on our NLP analysis of over 60 user reviews sourced from the IOS appstore and the appstore cumulative rating of 3.8/5. AppSupports Safety Score for Engine RPM is 75.4/100.
Should I download Engine RPM?
✅ There have been no security reports that makes Engine RPM a dangerous app to use on your smartphone right now.
Engine RPM Screenshots
Product details of Engine RPM
- App Name:
- Engine RPM
- App Version:
- 2.5
- Developer:
- Real-Time Specialties
- Legitimacy Score:
- 73.9/100
- Safety Score:
- 75.4/100
- Content Rating:
- 4+ Contains no objectionable material!
- Category:
- Utilities, Productivity
- Language:
- EN
- App Size:
- 3.11 MB
- Price:
- $8.99
- Bundle Id:
- com.realtimespecialties.tach
- Relase Date:
- 02 December 2009, Wednesday
- Last Update:
- 13 September 2023, Wednesday - 13:42
- Compatibility:
- IOS 12.0 or later
* Optional Low-Pass Filtering to suppress high frequency interfering sounds. * Optional signal rectification to transform high frequency percussive bursts into low frequencies that were otherwise too low to be detected by the microphone. * Older unre....
