Comparison

Strobe Light vs Strobe Flashlight

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Strobe Light

This application transforms your smartphone into a digital tachometer using its flashlight. It measures the rotational speed (RPM) of objects by flashing light at them, making them appear stationary when the flash rate matches their speed. Save readings and use it for mechanics, education, or industrial checks.

Highlights
  • 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
Features
Read full description

Strobe Light - RPM turns your phone into a powerful tool for measuring the speed of rotating objects. The app works like a digital tachometer and offers two measurement modes: Strobe Light and Camera. You can measure the RPM of fans, motors, wheels, and other rotating devices without touching them. In both modes, the same stroboscopic principle is used. When the flash rate or camera frame 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 with high accuracy. Strobe Light Mode Using your phone's flashlight, this mode flashes light at the object in a specific pattern. It works best in a dark or low-light environment and is ideal when you want a quick RPM reading with the built-in flashlight. How to Use (Strobe Light): Mark the rotating object with something visible (a sticker or tape works well). Point your phone's flashlight toward the object. Turn on the strobe using the power button. Adjust the strobe speed using the + and - buttons until the object looks still. The RPM shown on the screen is the object's rotation speed. You can save the reading for later reference. Camera Mode Camera mode uses your phone's camera to show a live preview at a set frame rate (FPM — Frames Per Minute). When the frame rate matches the object's RPM, the rotating object appears frozen on screen. This mode is useful in well-lit conditions when you want to see the object clearly while tuning the speed. How to Use (Camera): Open Camera mode from the home screen and allow camera permission. Point the camera at the rotating object. Adjust the frame rate using the + and - buttons until the object looks still. The value shown on the screen is the object's RPM. Use the flash button if you need extra light in darker areas. Save or reset your reading anytime from the bottom buttons. 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. Maintenance: Compare readings over time using saved history. Key Features: Two Measurement Modes: Choose Strobe Light or Camera from the home screen based on your environment and preference. Adjustable Strobe Speed: Set the strobe from 1 to 10,000 RPM for accurate measurements. Camera Frame Rate Control: Set camera preview from 30 to 14,400 FPM for precise visual tuning. Quick Adjustment Buttons: Easily change the speed with buttons for +1, +10, +50, or +100 RPM increments in both modes. Flash Sync (Strobe Light): Ensures the light flashes at the correct frequency for accurate RPM readings. Built-in Camera Flash (Camera Mode): Toggle the flash on or off for better visibility in low light. Save and Reset: Save current RPM readings with a custom title or reset to default anytime. History Tracking: Save and review your RPM data anytime for easy access from the menu. Works in Different Lighting: Strobe Light works best in the dark; Camera mode works well in normal and low-light conditions. Simple and Energy-Efficient: The app's interface is easy to use and designed to be practical for everyday measurements. Visual Tachometer: Acts just like a real tachometer using visual strobe techniques with your phone's flashlight or camera. Strobe Light - RPM makes it simple to measure RPM without any special tools or equipment. Whether you prefer the classic flashlight strobe method or the new live camera preview, this app gives you flexible and accurate RPM measurement in one place. Perfect for mechanics, hobbyists, students, and professionals alike. Contact us at: zsmapps2024@gmail.com Terms of use: Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Strobe Flashlight

Features
Read full description

Strobe Flashlight turns your iPhone into a powerful strobe light with multiple flash modes and music sync effects. Perfect for parties, emergencies, or creative lighting. Features: • Fast & slow strobe modes • Music sync flashing • SOS & emergency warning light • Adjustable speed and brightness • Clean and easy-to-use interface • Light & dark mode support • Keeps screen awake while flashing Perfect for: • Emergency signals • Creative lighting effects • Photography • Parties & DJs Note: Keep the app open for continuous flashing.

Screenshots

Strobe Light3 screens
Strobe Flashlight4 screens

Verdict

The call

The clearest difference is in-app purchases: Strobe Light at none against Strobe Flashlight's 1. Strobe Flashlight's advantage is ads (none vs shown) and update cadence (every 2 months vs every 7 months). On price, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Strobe Flashlight sells 1 one-off in-app purchase. Strobe Light asks for nothing beyond the download.

UpkeepUpdate frequency

Strobe Light ships an update every 7 months, Strobe Flashlight every 2 months. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

Scorecard3 real differences · 7 level
Strobe Light versus Strobe Flashlight: the parameters behind the verdict, then further details
ParameterStrobe LightStrobe Flashlight
PriceFreeFree
Rating2.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 7 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size25 MB7 MB
Age rating4+4+
DeveloperZain Saeed MughalLuan Cu Xuan

In-app purchases

None

Strobe Light

No in-app purchases

1 purchases

Strobe Flashlight

One-time1
  • Remove Ads$1.99

Questions

Is Strobe Light free?
Strobe Light is free to download, with no in-app purchases.
Is Strobe Flashlight free?
Strobe Flashlight is free to download, with in-app purchases available.
Do Strobe Light or Strobe Flashlight have ads?
Strobe Light shows ads; Strobe Flashlight does not.
Which is updated more often, Strobe Light or Strobe Flashlight?
Strobe Light ships an update every 7 months, and Strobe Flashlight every 2 months. Most recently, Strobe Light was updated on October 9, 2026 and Strobe Flashlight on October 1, 2026.

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