Glider Frequency vs SkySoar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Glider Frequency
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Fix your phone to anything that vibrates and measure its frequency in Hz or per minute. Glider wings, wing beats, machine vibration, springs, flexing boards — anything that repeats. FEATURES - Finds the frequency by running an FFT on the accelerometer waveform - Estimates down to 0.01 Hz with a Hann window, zero padding and peak interpolation - Automatically removes the effect of tilt - Real-time frequency spectrum and confidence level - 10-second average - Adjustable analysis window (5, 10 or 20 s), sensor axis and minimum frequency - Built-in tutorial for first-time users HOW TO USE 1. Fix the phone firmly to the object, screen facing up 2. Press Start to begin a 3-2-1 countdown 3. Start the vibration and the frequency appears Measurement range is roughly 0.5–50 Hz.
SkySoar
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SkySoar gives glider pilots a tool to easily keep track of their flights while getting detailed insights into their flight data, like an automatic calculation of the practice state. How many winch launches did I do this year? This question is hard to answer when looking at your conventional pilot log book, as it gives you very limited insight into your flying activities. SkySoar gives you a dashboard at hand that is customisable. With SkySoar you can get detailed, custom insights, into your flying activities, like the amount of winch launches in the current year or your practice state, calculated based on the flights you did within the last six months. Features - Flight Log Management: Allows pilots to add, edit and delete flights. - Practice State Visualisation: Displays the pilot's practice state using a color coded system. - Onboarding: The app comes with an onboarding sequence and the ability to add sample flight data for new users to explore the app. The following Terms of Use (EULA) apply to SkySoar: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Glider Frequency at none against SkySoar's 2. Glider Frequency also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). SkySoar's advantage is update cadence (monthly vs every 37 months). On price 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. SkySoar sells 2 in-app purchases, starting at $4.99 per month. Glider Frequency asks for nothing beyond the download.
Glider Frequency ships an update every 37 months, SkySoar monthly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | Glider Frequency | SkySoar |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 37 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 16 MB | 6 MB |
| Age rating | 4+ | 17+ |
| Developer | Hiroki Kijima | Jonas Philipp Haru Andres Vetsch* |
In-app purchases
Glider Frequency
No in-app purchases
SkySoar
- Support SkySoar Monthly$4.991 Month
- Support SkySoar Yearly$49.991 Year









