Strobe tachometer (RPM meter)3.6.7 - App Store
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Publisher Description
STROBE TACHOMETER
When the flicker frequency of light coincides with the speed of any object, such as a fan, the rotating fan may appear to be stationary. Changing the frequency of the flicker of light may help detect the rotation speed.
You may easily use the flicker frequency control buttons to quickly assign the flicker frequency with an accuracy of 0.0001 Hz (0.01 RPM):
. Up to 1000 Hz (60 000 RPM) for a connected flashlight (see the video on YouTube: https://youtu.be/iq6Xiums05o).
. Up to 100 Hz (6000 RPM) for the iPhone flashlight.
IF THE SPEED IS MORE THAN UPPER LIMIT, YOU MAY STILL DETERMINE THE SPEED BY FIRST MAKING MEASUREMENTS WITH A LOWER FLICKER FREQUENCY AND THEN MAKING A SIMPLE CALCULATION (AS EXPLAINED IN THE APPENDIX).
To change the frequency, you should simply press and hold the button. In the app settings, you can adjust the speed at which the flash rate changes when you press and hold the button. The flicker frequency can be displayed either in Hz or RPM.
The image you see will be sharper in lower external light.
After a long period of usage, in case of overheating, the iPhone flashlight turns off automatically.
LASER TACHOMETER
. Measurement range from 0.3 Hz (18 RPM) to 1000 Hz (60 000 RPM).
. Step 0.01-0.0001 Hz (1-0.01 RPM).
. Update time 1 sec.
. 5 mW laser power required.
MAGNETIC TACHOMETER
This tachometer operates by measuring the magnetic field from a spinning magnet. The magnetic field is measured by the iPhone's magnetometer. The magnetic tachometer is best suited for measuring low rotation speeds (from 6 revolutions per minute). It can also be used for measuring medium rotation speeds (up to 2,700 RPM), but at such speeds there is a risk of spontaneous tearing away of the magnet and strong vibration due to center-of-gravity shift.
. Measurement range from 0.1 Hz (6 RPM) to 45 Hz (2,700 RPM).
. Step 0.2-2 %.
. Update time 2-5 sec.
Version History The app has been updated only to answer new age rating questions. 3.6.7 Aug 26 • Bug fixes. 3.6.6 Feb 15 • Minor changes in text design. 3.6.5 10/31/2025 • Small improvements. 3.6.4 04/28/2025 • Minor changes in text design. 3.6.3 09/10/2023 • Bug fixes. 3.6.2 09/03/2023 • For iOS 16+, the flash duration has been increased when using the iPhone LED. This increases the brightness of the flash, but makes the mark more blurry. If before this update your iPhone LED flashed bright enough and this update made the label too blurry, then let me know. 3.6.1 08/10/2023 • Setting the rate at which the flash frequency changes when the button is pressed and held. 3.6 12/31/2022 • Bug fixed: not working laser tachometer. After this update, on very old iPhone models (iPhone 4S, iPhone 5, iPhone 5C), the laser tachometer may stop working or work incorrectly. If this happens, please let me know. 3.5.8 12/24/2022 • Adaptation for iPhone 14 Pro. 3.5.7 12/23/2022 • Minor changes in text design. 3.5.6 04/17/2022 • Bug fixes. 3.5.5 02/18/2022 • Minor changes in text design. 3.5.4 07/11/2021 • Bug fixes. 3.5.3 06/14/2021 • Minor changes. 3.5.2 03/26/2018 • Minor changes. 3.5.1 01/22/2018 • Magnetic tachometer. 3.5 10/08/2017 • New video. 3.4.3 01/06/2017 • Minor changes. 3.4.2 11/29/2016 • New video. 3.4.1 11/14/2016 • Hundredths (for small values of RPM, LASER TACHOMETER).
• Measurement range from 0.3 Hz (18 RPM, LASER TACHOMETER).
• Update time 0.5 sec (LASER TACHOMETER). 3.4 10/26/2016 • Hundredths (for small values of RPM, STROBE TACHOMETER). 3.3 10/17/2016 • Bug fixes. 3.2.3 10/07/2016 • Changes in the help section. 3.2.2 08/05/2016 • New video. 3.2.1 07/30/2016
About Strobe tachometer (RPM meter)
The company that develops Strobe tachometer (RPM meter) is Dmitriy Kharutskiy. The latest version released by its developer is 3.6.7.
To install Strobe tachometer (RPM meter) on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-14 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Strobe tachometer (RPM meter) as malware if the download link is broken.
How to install Strobe tachometer (RPM meter) on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Strobe tachometer (RPM meter) is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Strobe tachometer (RPM meter) is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 3.6.7
posted on 2026-10-14
Version History The app has been updated only to answer new age rating questions. 3.6.7 Aug 26 • Bug fixes. 3.6.6 Feb 15 • Minor changes in text design. 3.6.5 10/31/2025 • Small improvements. 3.6.4 04/28/2025 • Minor changes in text design. 3.6.3 09/10/2023 • Bug fixes. 3.6.2 09/03/2023 • For iOS 16+, the flash duration has been increased when using the iPhone LED. This increases the brightness of the flash, but makes the mark more blurry. If before this update your iPhone LED flashed bright enough and this update made the label too blurry, then let me know. 3.6.1 08/10/2023 • Setting the rate at which the flash frequency changes when the button is pressed and held. 3.6 12/31/2022 • Bug fixed: not working laser tachometer. After this update, on very old iPhone models (iPhone 4S, iPhone 5, iPhone 5C), the laser tachometer may stop working or work incorrectly. If this happens, please let me know. 3.5.8 12/24/2022 • Adaptation for iPhone 14 Pro. 3.5.7 12/23/2022 • Minor changes in text design. 3.5.6 04/17/2022 • Bug fixes. 3.5.5 02/18/2022 • Minor changes in text design. 3.5.4 07/11/2021 • Bug fixes. 3.5.3 06/14/2021 • Minor changes. 3.5.2 03/26/2018 • Minor changes. 3.5.1 01/22/2018 • Magnetic tachometer. 3.5 10/08/2017 • New video. 3.4.3 01/06/2017 • Minor changes. 3.4.2 11/29/2016 • New video. 3.4.1 11/14/2016 • Hundredths (for small values of RPM, LASER TACHOMETER).
• Measurement range from 0.3 Hz (18 RPM, LASER TACHOMETER).
• Update time 0.5 sec (LASER TACHOMETER). 3.4 10/26/2016 • Hundredths (for small values of RPM, STROBE TACHOMETER). 3.3 10/17/2016 • Bug fixes. 3.2.3 10/07/2016 • Changes in the help section. 3.2.2 08/05/2016 • New video. 3.2.1 07/30/2016
version 3.6.7
posted on 2026-09-05
Version History The app has been updated only to answer new age rating questions. 3.6.7 Aug 26 • Bug fixes. 3.6.6 Feb 15 • Minor changes in text design. 3.6.5 10/31/2025 • Small improvements. 3.6.4 04/28/2025 • Minor changes in text design. 3.6.3 09/10/2023 • Bug fixes. 3.6.2 09/03/2023 • For iOS 16+, the flash duration has been increased when using the iPhone LED. This increases the brightness of the flash, but makes the mark more blurry. If before this update your iPhone LED flashed bright enough and this update made the label too blurry, then let me know. 3.6.1 08/10/2023 • Setting the rate at which the flash frequency changes when the button is pressed and held. 3.6 12/31/2022 • Bug fixed: not working laser tachometer. After this update, on very old iPhone models (iPhone 4S, iPhone 5, iPhone 5C), the laser tachometer may stop working or work incorrectly. If this happens, please let me know. 3.5.8 12/24/2022 • Adaptation for iPhone 14 Pro. 3.5.7 12/23/2022 • Minor changes in text design. 3.5.6 04/17/2022 • Bug fixes. 3.5.5 02/18/2022 • Minor changes in text design. 3.5.4 07/11/2021 • Bug fixes. 3.5.3 06/14/2021 This app has been updated by Apple to prepare for watchOS 27 compatibility. No new features are included.
• Minor changes. 3.5.2 03/26/2018 • Minor changes. 3.5.1 01/22/2018 • Magnetic tachometer. 3.5 10/08/2017 • New video. 3.4.3 01/06/2017 • Minor changes. 3.4.2 11/29/2016 • New video. 3.4.1 11/14/2016 • Hundredths (for small values of RPM, LASER TACHOMETER).
• Measurement range from 0.3 Hz (18 RPM, LASER TACHOMETER).
• Update time 0.5 sec (LASER TACHOMETER). 3.4 10/26/2016 • Hundredths (for small values of RPM, STROBE TACHOMETER). 3.3 10/17/2016 • Bug fixes. 3.2.3 10/07/2016 • Changes in the help section. 3.2.2 08/05/2016 • New video. 3.2.1 07/30/2016
version 3.6.6
posted on 2026-08-21
Version History • Bug fixes. 3.6.6 Feb 15 • Minor changes in text design. 3.6.5 10/31/2025 • Small improvements. 3.6.4 04/28/2025 • Minor changes in text design. 3.6.3 09/10/2023 • Bug fixes. 3.6.2 09/03/2023 • For iOS 16+, the flash duration has been increased when using the iPhone LED. This increases the brightness of the flash, but makes the mark more blurry. If before this update your iPhone LED flashed bright enough and this update made the label too blurry, then let me know. 3.6.1 08/10/2023 • Setting the rate at which the flash frequency changes when the button is pressed and held. 3.6 12/31/2022 • Bug fixed: not working laser tachometer. After this update, on very old iPhone models (iPhone 4S, iPhone 5, iPhone 5C), the laser tachometer may stop working or work incorrectly. If this happens, please let me know. 3.5.8 12/24/2022 • Adaptation for iPhone 14 Pro. 3.5.7 12/23/2022 • Minor changes in text design. 3.5.6 04/17/2022 • Bug fixes. 3.5.5 02/18/2022 • Minor changes in text design. 3.5.4 07/11/2021 • Bug fixes. 3.5.3 06/14/2021 This update from Apple will improve the functionality of this app. No new features are included.
• Minor changes. 3.5.2 03/26/2018 • Minor changes. 3.5.1 01/22/2018 • Magnetic tachometer. 3.5 10/08/2017 • New video. 3.4.3 01/06/2017 • Minor changes. 3.4.2 11/29/2016 • New video. 3.4.1 11/14/2016 • Hundredths (for small values of RPM, LASER TACHOMETER).
• Measurement range from 0.3 Hz (18 RPM, LASER TACHOMETER).
• Update time 0.5 sec (LASER TACHOMETER). 3.4 10/26/2016 • Hundredths (for small values of RPM, STROBE TACHOMETER). 3.3 10/17/2016 • Bug fixes. 3.2.3 10/07/2016 • Changes in the help section. 3.2.2 08/05/2016 • New video. 3.2.1 07/30/2016 • Pulse duration setting.
• Changes in the help section (New video, Stroboscope, Shopping). 3.2 07/15/2016
version 3.6.6
posted on 2026-02-15
• Bug fixes.
version 3.6.5
posted on 2025-10-31
• Minor changes in text design.
version 3.6.4
posted on 2025-04-28
Apr 28, 2025
Version 3.6.4
• Small improvements.
version 3.6.3
posted on 2023-09-10
Sep 10, 2023
Version 3.6.3
• Minor changes in text design.
version 3.6.2
posted on 2023-09-03
Sep 3, 2023
Version 3.6.2
• Bug fixes.
version 3.6.1
posted on 2023-08-10
Aug 10, 2023
Version 3.6.1
• For iOS 16+, the flash duration has been increased when using the iPhone LED. This increases the brightness of the flash, but makes the mark more blurry. If before this update your iPhone LED flashed bright enough and this update made the label too blurry, then let me know.
version 3.6
posted on 2022-12-31
Dec 31, 2022
Version 3.6
• Setting the rate at which the flash frequency changes when the button is pressed and held.
Disclaimer
Official App Store Link
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