GlideRatio vs Airtime BT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GlideRatio
This app helps paragliders and hang gliders calculate the minimum glide ratio needed for safe takeoffs and landings. It uses your phone's camera and motion sensors to provide immediate calculations with a simple, intuitive interface.
- Detects minimal glide ratio for safe flights
- Uses rear camera and motion sensors
- Two detection modes: landing zone and takeoff site
- Zoom feature for accurate aiming
- Minimalistic and intuitive UI
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First, many thanks to my Bulgarian friends: Andrey Manolov and Emil Gyorev. For the great idea to create this application. If it was not for your help and encouragement, this project would not have been successful. This application uses rear camera and motion sensors of your phone to detect minimal glide ratio required to safely run (fly) lines in your Hike&Fly missions. Two modes of detection: from landing zone and from takeoff site. Use zoom feature to point your camera to destination accurate. Minimalistic UI (no stupid buttons, controls, etc): Just point your camera to landing (or to takeoff) zone, boom - you can see calculated glide ratio immediately.
Airtime BT
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Download your tracks directly from your Flysight 2 via Bluetooth and check your performances on your phone between two jumps! Also compatible with Flysight 1 (requires standard iPhone adapter, see documentation). Remember to update your Flysight 2 to the latest official firmware to enable Bluetooth support. See instructions here: https://flysight.ca/firmware/ Please check the documentation and report bugs here: https://github.com/vef445/AirtimeBT/blob/master/README.md
Screenshots
Verdict
The clearest difference is iOS requirement: GlideRatio at 13.2 against Airtime BT's 16.6. On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | GlideRatio | Airtime BT |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Every 3 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.2 — better | 16.6 |
| Further details — not scored | ||
| Size | 0 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Sergey Muravev | Guillaume Gerard Frantz Vigneron |
In-app purchases
GlideRatio
No in-app purchases
Airtime BT
No in-app purchases
