igc Viewer vs Glider Polar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
igc Viewer
Easily open and view .igc flight log files directly from your device's file manager or share menu. This application processes your flight data, displaying it within seconds.
- Open .igc files
- Use with File App
- Share to app functionality
- Fast file processing
- Supports multiple devices
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How to use. - Open File App. (Alternatively, click the share button and open with 'copy to igc viewer') - Select [.igc] file. - The app will open igc file (it might take a few seconds depending on the file size).
Glider Polar
This app predicts glider performance by allowing users to adjust gross weight and headwind. Experienced pilots can explore the impact of water ballast on glide ratio and speed, while beginners can visualize how wind and weight affect performance.
- Predicts glider glide performance
- Adjustable gross weight
- Adjustable headwind component
- Shows effect of water ballast
- Illustrates wind and weight impact
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Glider Polar predicts the glide performance of any glider. The user can vary the glider's gross weight and headwind component and immediately see the effect on glider performance. Experienced pilots can use the app to see how water ballast affects the glide ratio and cruise speed. For those new to gliding, the app clearly illustrates the effect of wind and weight on performance.
Screenshots
Verdict
The clearest difference is price: igc Viewer at Free against Glider Polar's $2.99. igc Viewer also leads on update cadence (every 4 months vs every 21 months). Glider Polar's advantage is rating (5.0 vs 4.0) and in-app purchases (none vs 1). On ratings volume, 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
igc Viewer is free to download; Glider Polar costs $2.99 up front. igc Viewer sells 1 one-off in-app purchase. Glider Polar asks for nothing beyond the download.
Glider Polar holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
igc Viewer ships an update every 4 months, Glider Polar every 21 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | igc Viewer | Glider Polar |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.0 (2 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 4 months — better | Every 21 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 16.0 | 15.2 — better |
| Further details — not scored | ||
| Size | 82 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Hiroki Kijima | Robert Walker |
In-app purchases
igc Viewer
- Flight Computer Mode$4.99
Glider Polar
No in-app purchases
Questions
Is igc Viewer free?
Is Glider Polar free?
Which has better reviews, igc Viewer or Glider Polar?
Do igc Viewer or Glider Polar have ads?
Which is updated more often, igc Viewer or Glider Polar?
Other comparisons
