# Strobe Light – RPM — Digital Tachometer RPM Checker

> Digital tachometer app measures rotational speed using phone flashlight and strobe effect. (iPhone/iPad app by Zain Saeed Mughal.)

- Source: https://appshunter.io/ios/app/strobe-light-rpm/id6747579407 (this page in markdown: same URL + `.md`)
- Developer: [Zain Saeed Mughal](https://appshunter.io/developer/1762408320)
- Category: Utilities
- Price: Free
- Rating: 2.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15 · 23 MB
- Languages: American English
- Released: 2025-07-11
- Data updated: 2026-08-24
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/strobe-light-rpm/id6747579407/reviews.md

## What is Strobe Light?

Strobe Light - RPM turns your phone into a powerful tool for measuring the speed of rotating objects. Using your phone's flashlight, this app acts like a digital tachometer. It allows you to measure the speed (RPM) of any rotating object by flashing light at the object in a specific pattern. 



When the strobe light’s flash rate matches the speed of the object, it creates the illusion that the object is standing still. This helps you visually determine the exact rotational speed of the object, without needing to touch it. 



How to Use: 

1. Mark the rotating object with something visible (a sticker or tape works well). 

2. Point your phone’s flashlight toward the object. 

3. Adjust the strobe speed until the object looks still. 

4. The RPM shown on the screen is the object’s rotation speed. 

5. You can save the reading for later reference. 



Where It’s Useful: 

- Mechanics: Test fans, engines, or motors by measuring RPM. 

- Education: Ideal for physics experiments that require RPM measurements. 

- Industrial Use: Check the condition of rotating machinery. 

- Calibration: Ensure rotating devices are running at the correct speed. 



Key Features: 

- Adjustable Strobe Speed: Set the strobe from 1 to 10,000 RPM for accurate measurements. 

- Quick Adjustment Buttons: Easily change the speed with buttons for +1, +10, +50, or +100 RPM increments. 

- Flash Sync: Ensures the light flashes at the correct frequency for accurate RPM readings. 

- History Tracking: Save and review your RPM data anytime for easy access. 

- Works in Low Light: Although user can obtain best results in the dark, still the app work in low-light conditions as well. 

- Simple and Energy-Efficient: The app’s interface is easy to use and doesn’t drain your phone’s battery. 

- Visual Tachometer: Acts just like a real tachometer, but using your phone’s flashlight and visual strobe technique. 



Strobe Light - RPM makes it simple to measure RPM without any special tools or equipment. Whether you're working or just learning about rotational speed, this app turns your phone into an easy-to-use tachometer. Perfect for mechanics, hobbyists, students, and professionals alike!

## Key features

- Measures RPM of rotating objects
- Adjustable strobe speed (1-10,000 RPM)
- Quick adjustment buttons (+/- increments)
- Flash sync for accuracy
- Save and review RPM data
- Works in low light conditions

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/strobe-light-rpm/id6747579407/reviews.md

### 2/5 — Unusable

*2026-03-25*

The amount of ads this app shows is ridiculous.  You have to watch an ad every time you start and stop the strobe!  If you want to raise your blood pressure - this is the app for you.

## Frequently asked questions about Strobe Light

### How does Strobe Light RPM measure RPM?

Strobe Light RPM uses your phone's flashlight to create a flashing light. By adjusting the flash rate, it can make a rotating object appear stationary, allowing you to determine its exact rotational speed in RPM.

### What is the range of RPM that Strobe Light RPM can measure?

The app allows you to adjust the strobe speed from 1 to 10,000 RPM, providing a wide range for accurate measurements of various rotating objects.

### Can I save my RPM readings with Strobe Light RPM?

Yes, the app features history tracking, enabling you to save and review your RPM data anytime for easy access and reference.

### Does Strobe Light RPM work in dark environments?

While optimal results are achieved in the dark, Strobe Light RPM is designed to work effectively in low-light conditions as well.

### Is Strobe Light RPM free to use?

Strobe Light RPM is available for free. However, it does contain advertisements.

### What devices is Strobe Light RPM compatible with?

Strobe Light RPM is compatible with iPhone, iPad, and iPod devices.

### How often is Strobe Light RPM updated?

The app was last updated on November 24, 2025, indicating regular maintenance and potential feature additions.

### What age rating does Strobe Light RPM have?

Strobe Light RPM has an age rating of 4+, making it suitable for a wide range of users.

## Version history (last 2 releases)

### 1.1 — 2025-11-24

- Improvements

### 1.0 — 2025-07-11

No release notes.

## Apps similar to Strobe Light

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Strobe Light Party](https://appshunter.io/ios/app/strobe-light-party/id6504585828) | 5.0 (4) | Free | Utilities |
| [SoundTach](https://appshunter.io/ios/app/soundtach/id6755052370) | 4.2 (5) | Free | Utilities |
| [Strobe tachometer (RPM meter)](https://appshunter.io/ios/app/strobe-tachometer-rpm-meter/id831460940) | 4.3 (83) | Free | Utilities |
| [Video tachometer](https://appshunter.io/ios/app/video-tachometer/id1492583587) | 4.6 (84) | Free | Utilities |
| [Camera RPM Meter - StrobeLight](https://appshunter.io/ios/app/camera-rpm-meter-strobelight/id1583247436) | 2.3 (33) | Free | Utilities |
| [Stroboscope: 300Hz + Presets](https://appshunter.io/ios/app/stroboscope-300hz-plus-presets/id6760181575) | — | Free | Utilities |

## More apps by Zain Saeed Mughal

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- [Hisense TV Remote: SenseMote](https://appshunter.io/ios/app/hisense-tv-remote-sensemote/id6737553648)
- [Vizio TV Remote: VizCast](https://appshunter.io/ios/app/vizio-tv-remote-vizcast/id6737687703)
- [Calc: Calculator, Unit Convert](https://appshunter.io/ios/app/calc-calculator-unit-convert/id6738993634)

All apps by Zain Saeed Mughal: https://appshunter.io/developer/1762408320

## Related topics

[strobe light rpm](https://appshunter.io/ios/topics/strobe-light-rpm) · [strobe light tachometer](https://appshunter.io/ios/topics/strobe-light-tachometer) · [strobe screen](https://appshunter.io/ios/topics/strobe-screen) · [rpm gauge](https://appshunter.io/ios/topics/rpm-gauge) · [rpm strobe](https://appshunter.io/ios/topics/rpm-strobe) · [strobe light hz](https://appshunter.io/ios/topics/strobe-light-hz) · [strobe tachometer](https://appshunter.io/ios/topics/strobe-tachometer) · [tachometer digital](https://appshunter.io/ios/topics/tachometer-digital) · [strobe](https://appshunter.io/ios/topics/strobe) · [color strobe](https://appshunter.io/ios/topics/color-strobe)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*