1. Home
  2. 🔧 Utilities
  3. Video tachometer
Video tachometer

Video tachometer

Strobe light effect, RPM meter

84 ratings
53 reviews
📚 Education
🔧 Utilities
Free
In-App Purchases

Details

  • Released
  • Updated
  • December 28, 2019
  • August 22, 2026

Developer

Dmitriy Kharutskiy
✨Promote your app ✨
Video tachometer video #1 for iPhone
Video tachometer video #2 for iPhone
Video tachometer video #3 for iPhone
Video tachometer screenshot #4 for iPhone
Video tachometer screenshot #5 for iPhone
Video tachometer screenshot #6 for iPhone
Video tachometer screenshot #7 for iPhone
Video tachometer screenshot #8 for iPhone
Video tachometer screenshot #9 for iPhone
Video tachometer screenshot #10 for iPhone
Video tachometer screenshot #11 for iPhone
Video tachometer screenshot #12 for iPhone
iphone
ipad
🧾$2.99
In-App Purchase↘︎
📌Ready
Reviews summary↘︎
⭐53
Reviews↘︎
📝13+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
❓5 answered
FAQ↘︎
📦~ in 2 months
Updates frequency↘︎
🖼️Get Icon
Icons↘︎

About

This app uses slow-motion video to create a strobe light effect, allowing you to measure rotational speeds. It records video with detailed information like frame rate and exposure, and offers customizable text overlays.

✓Strobe light effect simulation
✓Rotational speed measurement (RPM/Hz)
✓Slow-motion video recording
✓Customizable text overlays on video
✓Adjustable frame rate and exposure
✓Records 4K video (if supported)
Show original description

What users say

Summarized from real user reviews of Video tachometer. Based on 84 reviews and a 4.6/5 average, it highlights the 16 positives and 8 negatives reviewers mention most about this Utilities app.

Positive things

  • 👍Easy to use
  • 💡Clever approach
  • 🚀Works beautifully
  • 👍Very handy
  • 👍Accurate measurements
  • 👍Great value
  • 👍Fantastic app
  • 👍Useful tool
  • 👍Excellent app
  • 👍Precise measurements
  • 👍Works perfectly
  • 👍Good for science projects
  • 👍Saves money
  • 👍Helpful for farmers
  • 👍Great for diagnostics
  • 👍Good for timing engines

Negative things

  • 💸Too much in paid version
  • 💰Free version limited
  • 🤔Confusing settings initially
  • 👎Unclear about recording
  • 👎No built-in video recording
  • 💸App is not free
  • 👎Incorrect readings in free version
  • 😬Scam/Ripoff accusations
See all reviews

What's New in Video tachometer

2.1.10

August 22, 2026

• The phase shift of a moving object in an image when the image is made still. Touch and hold.

1

Subscriptions & In-App Purchases

$2.99

Full version

Fine tuning the frame rate.

User reviews

Most RecentHighest RatedLowest Rated

Works

Wanted to check RPM. I knew what it should be. 1125. I set this app to 1130 and my mark almost stopped, 1140 it spun backwards slowly. Just right. Very cool.
SomeAnonymousNameSomeAnonymousName

It works, just need

The app is very good, it takes a few tries to get the right settings to understand the different options and how they can be used, nothing impossible to do, if you try the app different settings you will find them very useful, after a few tries you will find the settings that are the best for you to use and understand. Excellent app just practice to master the settings.
Show more
rohesarohesa

Очень хорошее пирожение

Настолько хорошее, что готов купить про версию
топовые игрытоповые игры

Полезное приложение.

Понадобилось измерить обороты bldc мотора от машины, все получилось отлично.
Понятное и удобное приложение.
yeyskayeyska

Super Useful

I don't own a lot of tools (being a college student), so when I wanted to measure the RPM of my Lego motor to determine its torque, I was stuck. Looking on the AppStore was a last, desperate measure, but man, I'm glad I did. The free version of the app work beautifully and offers great control and features. And, the +-10RPM is not a huge deal. Overall, would absolutely recommend. Many thanks to the developer for providing this tool for free!
Show more
Tehcn_Tehcn_
See 48 more reviews

Developer apps

Vibration analysis
Vibration analysis

Vibrometer

🔧 Utilities

(43)

Free
In-App Purchases
Strobe tachometer (RPM meter)
Strobe tachometer (RPM meter)

+ Laser Tachometer + Magnetic

🔧 Utilities

(83)

Free
In-App Purchases
Talking Speedometer
Talking Speedometer

+ Bike Computer + GPS tracker

💪 Health & Fitness

(2)

$2.99
Speedometer, Speed Limit Alert
Speedometer, Speed Limit Alert

+ Bike Computer + GPS tracker

🗺️ Navigation

(13)

Free
In-App Purchases
DIY Anemometer (Wind Meter)
DIY Anemometer (Wind Meter)

Measurement of airflow speed

☀️ Weather

(6)

Free
In-App Purchases
DIY Metal Detector (Au,Ag,Fe)
DIY Metal Detector (Au,Ag,Fe)

with Discrimination

🔧 Utilities

(27)

Free
In-App Purchases
See developer apps

User experience

🐞

Reported Bugs

3 issues

Does not read anything

Bug

Pop-ups for paid features

Bug

Interface visible in screen recording

Bug
✨

Requested Features

4 requests

Ability to record video

Feature

Slow phase shift mode

Feature

Improved UI for initial setup

Feature

Long press for gradual increment/decrement

Feature

FAQ

What does this app do?

This application utilizes the slow-motion video recording capabilities of your smartphone to create a strobe light effect. This effect allows you to visually freeze parts of a rotating object, enabling the measurement of its rotational speed in Hertz (Hz) or Revolutions Per Minute (RPM).

How accurate is the speed measurement?

The app provides measurements in both Hertz (Hz) and Revolutions Per Minute (RPM). The Hertz value is considered more accurate as RPM is calculated from Hertz and involves rounding. The accuracy also depends on factors like good lighting, clear video, and manual focus adjustment.

What are the system requirements?

Your smartphone must support slow-motion video recording, which is standard on iPhones starting with the iPhone 5S. Specific ranges for measurement are available for different iPhone models, with newer models supporting higher frame rates and RPM ranges.

Can I record videos with measurement data?

Yes, the app can record video and add text with important information directly to the frames. You can choose to include the selected frame rate, exposure duration, ISO, timestamp, and time difference between frames, with options to customize the text color or omit it entirely.

Is this app free to use?

The application is available for free with the option for in-app purchases. This suggests that while core functionality may be free, certain advanced features or enhancements might require a purchase.