Comparison

Strobe Light Tachometer vs KDE Connect

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

Head to head
About

Strobe Light Tachometer

Transform your iPhone into a powerful strobe light and tachometer. Precisely control flashing speeds from 1Hz to 130Hz to measure the RPM of rotating objects by making them appear stationary. Ideal for precise speed measurements in dark environments.

Highlights
  • Adjustable strobe speed (1-130Hz / 60-7800RPM)
  • Quick adjustment buttons (x2, ÷2)
  • Fine-tuning buttons for precise speed
  • Manual RPM input
  • Display speed in Hz and RPM
  • Light/dark background option
Features
Read full description

NOTE: The App is just for iPhone with flashlight. It doe NOT work on iPad, iPod touch or any iOS device without flashlight. Description: Using this App, you can control the flashing on/off speed of your phone flashlight between 1Hz to 130Hz. In another word, this App makes your iPhone into a strobe light. What's the Application then?! You can use this App to use your iPhone as a tachometer that measures the speed of any rotating object. How to use it? Suppose you have a fan and need to measure its speed (RPM). Turn on the fan in a DARK environment, launch the App on your iPhone (that has flashlight). Manually tune the speed using the main slider of the App to see the rotating object looks almost not moving. Then, start fine tuning using the three buttons in the App to get the exact speed. At this point the rotating object looks like stationary! But, it is moving! So, never touch the moving/rotating object during your test! Features: - Slider to adjust strobe light speed between 1-130Hz (60-7800RPM) - x2 and ÷2 buttons for quick adjustment of flashing speed - 3 Buttons for fine tuning of the speed up to 2 decimal: 0X.00, 00.X0, 00.0X - Textfield to manually enter the speed in RPM (tap on the speed label) - Button for light and dark background option - showing the speed in both Hz and RPM - simple and easy to use!!

About

KDE Connect

Seamlessly integrate your devices with features like a shared clipboard, file sharing, and remote control. Use your phone as a virtual touchpad or keyboard, and even control presentations remotely. All communication is secured with end-to-end encryption.

Highlights
  • Shared clipboard
  • File and URL sharing
  • Virtual touchpad and keyboard
  • Remote presentation control
  • Remote command execution
  • End-to-end encryption
Read full description

KDE Connect provides a set of features to integrate your workflow across devices: - Shared clipboard: copy and paste between your devices. - Share files and URLs to your computer from any app. - Virtual touchpad and keyboard: Use your phone screen as your computer's touchpad or keyboard - Remote presentation remote: control a laser pointer on the screen of your computer by moving your phone around. - Remote commands: run commands on your computer from your phone. - End-to-end TLS encryption: your information is safe. Please note you will need to install KDE Connect on your other computers/phones/tablets and keep the version up-to-date for the latest features to work. This app is part of an open source project and it exists thanks to all the people who contributed to it. Please visit the KDE Connect website to grab the source code.

Screenshots

Strobe Light Tachometer3 screens
KDE Connect4 screens

Verdict

The call

The clearest difference is update cadence: KDE Connect at every 3 months against Strobe Light Tachometer's every 7 months. KDE Connect also leads on device support (4 vs 2). Strobe Light Tachometer's advantage is iOS requirement (7.0 vs 15.0). On price, rating, review sentiment and ratings volume 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.2 for Strobe Light Tachometer against 4.2 for KDE Connect. Both are backed by a comparable volume of ratings — 281 and 279 respectively. Written reviews are what separate them: 65% of Strobe Light Tachometer's written reviews are positive against 61% of KDE Connect's.

UpkeepUpdate frequency

Strobe Light Tachometer ships an update every 7 months, KDE Connect every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 7 level
Strobe Light Tachometer versus KDE Connect: the parameters behind the verdict, then further details
ParameterStrobe Light TachometerKDE Connect
PriceFreeFree
Rating4.2 (281 ratings)4.2 (279 ratings) — better
Positive reviews65.1% of reviews — better60.8% of reviews
Number of ratings281 — better279
Update frequencyEvery 7 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod, Mac — better
Requires iOS7.0 — better15.0
Further details — not scored
Size4 MB8 MB
Age rating+44+
DeveloperMotionics LLCKDE e.V.

Customer experience

Strobe Light Tachometer

All ratings280 ratings
Positive78.6%
Neutral6.1%
Negative15.4%
Written reviews86 reviews
Positive65.1%
Neutral7.0%
Negative27.9%

KDE Connect

All ratings276 ratings
Positive79.7%
Neutral4.0%
Negative16.3%
Written reviews342 reviews
Positive60.8%
Neutral10.5%
Negative28.7%

User reviews

Strobe Light Tachometer

From 281 App Store ratings

What we love

  • ✅ Accurate frequency and RPM measurements
  • 👍 Simple and user-friendly interface
  • 🎓 Excellent educational tool for teaching frequency concepts
  • 💰 Free application
  • ⚡ Quick and easy to use, even one-handed

Room to improve

  • 💡 LED flash brightness is too dim
  • 🐛 Strobe light cuts out or blacks out intermittently
  • 🐛 Inconsistent and erratic flashing patterns
  • ⚠️ Hardware compatibility issues with older iPhone models
  • 🐛 Strobe stops working after extended use

KDE Connect

From 279 App Store ratings

What we love

  • 🚀 Works seamlessly across devices
  • 👍 Easy to set up and use
  • 🔒 Secure file transfer
  • 💡 Innovative remote control features
  • 🤖 Great for Linux/KDE integration

Room to improve

  • 🐛 Occasional crashes and connectivity issues
  • 🔋 Drains battery when running in the background
  • 🤖 Limited functionality on iOS compared to Android
  • 🤔 Pairing can be unreliable at times

Bugs and requests

Strobe Light Tachometer

Reported bugs

9 issues
  • Strobe light cuts out every 2-3 seconds then resumes
  • LED flashes erratically on certain iPhone models (iPhone 14, iPhone XS, iPhone SE)
  • Strobe pulse is inconsistent and misses beats
  • App crashes or stops working after 20-30 minutes
  • Requires manual LED activation before starting strobe
Show 4 more
  • Incompatibility error message on iPhone devices
  • Strobe accuracy degrades at higher frequencies (above 45 Hz)
  • Flash pulses vary in length and brightness at high frequencies
  • App shows "only compatible with iPhone" error on iPhone devices

Requested features

7 requests
  • Ability to adjust brightness while strobe is running
  • Display accuracy specifications and hardware limitations
  • Option to set frequency by Hz in addition to RPM
  • Ability to specify number of fan blades for accurate RPM calculation
  • 2x and 1/2x multiplier options
Show 2 more
  • Reduced or removed advertisements
  • Display maximum blink rate for device hardware

KDE Connect

Reported bugs

4 issues
  • Clipboard push feature not working
  • App crashes on launch for some users
  • Incompatibility with certain device/OS combinations
  • Inability to discover/connect to devices in some cases

Requested features

5 requests
  • Add support for background operation
  • Improve multi-file transfer capabilities
  • Integrate with system share sheet
  • Implement two-finger scrolling and other gestures
  • Add SMS/notification sync features

In-app purchases

None

Strobe Light Tachometer

No in-app purchases

None

KDE Connect

No in-app purchases

Questions

Is Strobe Light Tachometer free?
Strobe Light Tachometer is free to download, with no in-app purchases.
Is KDE Connect free?
KDE Connect is free to download, with no in-app purchases.
Which has better reviews, Strobe Light Tachometer or KDE Connect?
KDE Connect is rated higher. Strobe Light Tachometer averages 4.2 out of 5 from 281 ratings, while KDE Connect averages 4.2 from 279 ratings.
Do Strobe Light Tachometer or KDE Connect have ads?
Neither Strobe Light Tachometer nor KDE Connect shows ads.
Which is updated more often, Strobe Light Tachometer or KDE Connect?
Strobe Light Tachometer ships an update every 7 months, and KDE Connect every 3 months. Most recently, Strobe Light Tachometer was updated on November 1, 2026 and KDE Connect on November 3, 2026.

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