Strobe Light Tachometer vs Gyraline
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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!!
Gyraline
This app transforms your smartphone and a specialized toolkit into a professional-grade wheel alignment system. It enables fast, accurate 4-wheel alignments for enthusiasts and DIYers in their own garage, offering precise measurements for various alignment angles.
- Precision 4-wheel alignment
- Measure total toe (front & rear)
- Thrust line comparison
- Camber measurement and adjustment
- Caster sweep
- Ackermann visualization
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Precision 4-Wheel Alignment, Reimagined Gyraline is a revolutionary, patent-pending alignment system that turns your smartphone and our precision toolkit into a professional-grade wheel alignment machine. Perform the fastest, most accurate 4-wheel alignment you’ve ever done, right in your own garage. Measure Like a Pro • Total Toe (Front & Rear): Instantly measure total toe across both axles. • Thrust Line Comparison: Verify front toe alignment relative to the rear axle’s thrust line. • Body Centerline Alignment: Check toe against the vehicle’s geometric centerline. • Camber Mode: Measure and adjust camber with live digital precision. • Caster Mode: Sweep caster accurately, without expensive shop hardware. • Ackermann Mode: Visualize steering geometry like never before. Why Gyraline Gyraline brings professional alignment accuracy to enthusiasts, racers, and commuters without the need for bulky alignment racks. Fast setup, clear visuals, and uncompromising precision all powered by your phone.
Screenshots
Verdict
The clearest difference is in-app purchases: Strobe Light Tachometer at none against Gyraline's 9. Strobe Light Tachometer also leads on rating (4.2 vs 3.8) and iOS requirement (7.0 vs 15.0). Gyraline's advantage is update cadence (fortnightly vs every 7 months). On price, review sentiment, ratings volume and ads 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
Both are free to download. Gyraline sells 9 in-app purchases, starting at $7.99 per 7 days. Strobe Light Tachometer asks for nothing beyond the download.
Strobe Light Tachometer holds the better App Store score, 4.2 against 3.8. Both are backed by a comparable volume of ratings — 277 and 99 respectively. Written reviews point the same way: 63% of Strobe Light Tachometer's written reviews are positive against 61% of Gyraline's.
Strobe Light Tachometer ships an update every 7 months, Gyraline fortnightly. The most recent releases landed on September 22, 2026 and September 18, 2026 respectively.
| Parameter | Strobe Light Tachometer | Gyraline |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (277 ratings) — better | 3.8 (99 ratings) |
| Positive reviews | 63.2% of reviews — better | 61.4% of reviews |
| Number of ratings | 277 — better | 99 |
| Update frequency | Every 7 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 7.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 4 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | Motionics LLC | Mechly LLC |
Customer experience
Strobe Light Tachometer
Gyraline
User reviews
Strobe Light Tachometer
From 277 App Store ratingsWhat 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
Gyraline
From 99 App Store ratingsWhat we love
- 👍 Great for DIY alignments
- 💰 Saves money on professional alignments
- 🚀 Quick and easy adjustments
- 🎯 Surprisingly accurate results
- 💡 Innovative tool for automotive enthusiasts
Room to improve
- 🐛 Inconsistent measurements
- 🤔 Steep learning curve
- ⏳ Time-consuming process
- 🤷♂️ Confusing interface/instructions
- 🐛 App crashes/bugs
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
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- 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
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- Reduced or removed advertisements
- Display maximum blink rate for device hardware
Gyraline
Reported bugs
16 issues- Inconsistent measurements
- App crashes
- Sensor axis reversed (G2)
- Accuracy defaults revert to 0.10°
- Camber tool unreliable
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- Manual/videos do not match current app design
- Front toe readings inaccurate after update
- Body align function removed for G1
- Surface profile percentage not visible
- Buggy app renders G2 unusable
- Previous update was better, new update makes it impossible to get accurate results
- G1 owners don't get vehicle spec access
- Body alignment of front toe removed
- Front toe readings inaccurate
- App requires refresh with red screen when moving to front wheel
- Inconsistent readings even after adjustments
Requested features
7 requests- Add caster to features
- Live measurements via Bluetooth sensors
- Separate toe-only section for quicker adjustments
- Self-calibration setting
- Vehicle spec database for G1 owners
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- Update tutorials to match current app version
- Dark mode text display fix
In-app purchases
Strobe Light Tachometer
No in-app purchases
Gyraline
- Gyraline DIY One Week3 Days trial$7.997 Days
- Gyraline DIY One Month$9.991 Month
- Quick Check Single Device1 Month trial$99.991 Month
- TrialFree
- Single Token Purchase$0.99
- Five Token Purchase$3.99
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- Weekend Pass$5.99
- One Time Subscription$69.99
- Gyraline Pro$399.99
Questions
Is Strobe Light Tachometer free?
Is Gyraline free?
Which has better reviews, Strobe Light Tachometer or Gyraline?
Do Strobe Light Tachometer or Gyraline have ads?
Which is updated more often, Strobe Light Tachometer or Gyraline?
Other comparisons
