Comparison

Glider Frequency vs SkySoar

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

Head to head
About

Glider Frequency

Features
Read full description

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.

About

SkySoar

Features
Read full description

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

Glider Frequency4 screens
SkySoar3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

Glider Frequency ships an update every 37 months, SkySoar monthly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard4 real differences · 2 level
Glider Frequency versus SkySoar: the parameters behind the verdict, then further details
ParameterGlider FrequencySkySoar
PriceFreeFree
Update frequencyEvery 37 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size16 MB6 MB
Age rating4+17+
DeveloperHiroki KijimaJonas Philipp Haru Andres Vetsch*

In-app purchases

None

Glider Frequency

No in-app purchases

2 purchases

SkySoar

Subscriptions2
  • Support SkySoar Monthly$4.991 Month
  • Support SkySoar Yearly$49.991 Year

Questions

Is Glider Frequency free?
Glider Frequency is free to download, with no in-app purchases.
Is SkySoar free?
SkySoar is free to download, with in-app purchases available.
Do Glider Frequency or SkySoar have ads?
Neither Glider Frequency nor SkySoar shows ads.
Which is updated more often, Glider Frequency or SkySoar?
Glider Frequency ships an update every 37 months, and SkySoar monthly. Most recently, Glider Frequency was updated on November 3, 2026 and SkySoar on November 4, 2026.

Other comparisons