# SkyLogger vs igc Viewer

The clearest difference is price: igc Viewer at Free against SkyLogger's $5.99. igc Viewer also leads on iOS requirement (16.0 vs 18.6). On review sentiment, update cadence, ads and in-app purchases there is nothing between them.

igc Viewer is free to download; SkyLogger costs $5.99 up front. SkyLogger sells 10 one-off in-app purchases and igc Viewer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

SkyLogger ships an update every 2 months, igc Viewer every 4 months. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | SkyLogger | igc Viewer |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | — | **[4.0 (2 ratings)](https://appshunter.io/ios/app/igc-viewer/id1428270954/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 48.6% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 18 MB | 82 MB |
| Requires iOS | 18.6 | **16.0** |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hartwig Wiesmann](https://appshunter.io/developer/1658877258) | [Hiroki Kijima](https://appshunter.io/developer/1326808571) |

## What reviewers say

### SkyLogger

[App page](https://appshunter.io/ios/app/skylogger/id309461034)

This app records and displays flight data for glider, hangglider, and paraglider pilots. It shows real-time information like speed, climb rate, and distance to take-off, and can export flight data in various formats for competition analysis.

**Highlights:** Real-time flight data display, IGC, GPX, KML file export, Competition data entry, 2D & 3D flight visualization, Apple Watch integration, Airspace visualization, XC point calculation

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Track traces | $0.99 | one-time |
| Climb rate traces | $1.99 | one-time |
| Live Tracking | $2.99 | one-time |
| Accelerometer | $2.99 | one-time |
| Airspaces | $4.99 | one-time |
| FlyNet accessory | $9.99 | one-time |
| 2D maps from 3rd parties | $9.99 | one-time |
| XC Tracer accessory | $9.99 | one-time |
| SkyDrop accessory | $9.99 | one-time |
| Maps from 3rd parties | $11.99 | one-time |


### igc Viewer

[App page](https://appshunter.io/ios/app/igc-viewer/id1428270954)

Easily view flight data from .igc files. Simply open the file through your device's File App or share it directly to the application. It handles various file sizes, displaying your flight information efficiently.

**Highlights:** Open .igc files, File App integration, Share to app functionality, Handles various file sizes, Displays flight information

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flight Computer Mode | $4.99 | one-time |


## Frequently asked questions

### Is SkyLogger free?

SkyLogger costs $5.99, and also offers in-app purchases.

### Is igc Viewer free?

igc Viewer is free to download, with in-app purchases available.

### Do SkyLogger or igc Viewer have ads?

Neither SkyLogger nor igc Viewer shows ads.

### Which is updated more often, SkyLogger or igc Viewer?

SkyLogger ships an update every 2 months, and igc Viewer every 4 months. Most recently, SkyLogger was updated on October 14, 2026 and igc Viewer on October 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*