Skylog Pro vs Strobe tachometer (RPM meter)
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Skylog Pro
This app allows professional pilots to log flight, simulator, and duty hours on their iPhone or iPod touch. It synchronizes data with the main PC application and provides reports to monitor flight and duty hour currency.
- Log flight, simulator, and duty hours
- Data synchronization with PC application
- Flight and duty hour currency reports
- Monitor 7, 14, and 28-day periods
- CAP 371 compliant reporting for UK pilots
- Record aircraft type, approaches, and destinations
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The Skylog Pro iPhone/iPad app, in conjunction with the most mature and well respected Professional Pilot Personal Flying Logbook - Skylog Pro, is the ideal app for professional pilots using the very popular Apple iPhone/iPad mobile devices when away from home. Created in 1996, Skylog Pro is used by thousands of airline pilots around the globe. Please note that, as with all our mobile apps, the iPhone app is designed to work with the Skylog Pro V6.09 (or later) PC application; it is NOT a stand-alone app, and can only be used in conjunction with the main PC application. Simple to use, the Skylog Pro iPhone app enables you to quickly record flight, simulator and duty hour details on your iPhone or iPod touch anywhere in the world, on the ground or in the Flight Levels, and allows you to continue using SkyLog Pro on your PC. Once back home, your iPhone/iPod touch data is synchronised by WiFi with the main Skylog Pro database on your PC using the Skylog iPhone Conduit available by FREE download from www.skylog.co.uk. Two reports are available which enable you to monitor your flight & duty hour currency. The Duty/Flight Hours Report will assist you in tracking of your flight and duty time currency for the preceding 7, 14 and 28-day periods (or limits and monitoring periods of your choice). The Flying Duty Hours Report, specifically for pilots operating aircraft registered in the United Kingdom, will enable calculation of your allowable flying duty hours in accordance with CAP 371. Skylog Pro, coupled with the iPhone/iPod touch app, is the ultimate combination for helping Professional Pilots comply with aviation authority record-keeping requirements. It gives you all the functionality and analytical reporting capabilities you would expect from a leading modern, sophisticated electronic logbook, including flight, simulator and duty hours, a/c type or categories flown, instrument approaches, destinations and much more. Existing Skylog Pro V6+ users need only purchase this app and then download the free iPhone synchronisation conduit from www.skylog.co.uk - where you will also be able to review all the features of Skylog Pro in detail. Please note that the iPhone/iPad app requires Skylog Pro V6.12 or later. Users of earlier V6 versions may update their applications free of charge by selecting Main Menu>Help>Check for Updates.
Strobe tachometer (RPM meter)
Measure rotational speeds of objects using your phone's flashlight, laser, or magnetic sensor. Detect precise RPMs with adjustable flicker frequencies and a wide measurement range. Ideal for analyzing fan speeds, engine RPMs, and more.
- Strobe tachometer function
- Laser tachometer mode
- Magnetic tachometer mode
- Adjustable flicker frequency
- RPM and Hz display
- High precision measurement
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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.
Screenshots
Verdict
The clearest difference is price: Strobe tachometer (RPM meter) at Free against Skylog Pro's $24.99. Strobe tachometer (RPM meter) also leads on rating (4.3 vs 1.0) and review sentiment (69% vs 43%). Skylog Pro's advantage is in-app purchases (none vs 2). On update cadence, ads, 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
Strobe tachometer (RPM meter) is free to download; Skylog Pro costs $24.99 up front. Strobe tachometer (RPM meter) sells 2 one-off in-app purchases. Skylog Pro asks for nothing beyond the download.
Strobe tachometer (RPM meter) holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: Strobe tachometer (RPM meter) has 83 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 43% of Skylog Pro's written reviews are positive against 69% of Strobe tachometer (RPM meter)'s.
Skylog Pro ships an update every 5 months, Strobe tachometer (RPM meter) every 4 months. The most recent releases landed on September 19, 2026 and October 16, 2026 respectively.
| Parameter | Skylog Pro | Strobe tachometer (RPM meter) |
|---|---|---|
| Price | $24.99 | Free — better |
| Rating | 1.0 (1 ratings) | 4.3 (83 ratings) — better |
| Positive reviews | 42.9% of reviews | 69.0% of reviews — better |
| Number of ratings | 1 | 83 — better |
| Update frequency | Every 5 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 1 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrew Sowerby | Dmitriy Kharutskiy |
Customer experience
Skylog Pro
Strobe tachometer (RPM meter)
In-app purchases
Skylog Pro
No in-app purchases
Strobe tachometer (RPM meter)
- Full version of the stroboscopic tachometer$2.99
- Laser Tachometer and Magnetic$2.99
Questions
Is Skylog Pro free?
Is Strobe tachometer (RPM meter) free?
Which has better reviews, Skylog Pro or Strobe tachometer (RPM meter)?
Do Skylog Pro or Strobe tachometer (RPM meter) have ads?
Which is updated more often, Skylog Pro or Strobe tachometer (RPM meter)?
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