# SkyLoggerXXL vs igc Viewer

The clearest difference is price: igc Viewer at Free against SkyLoggerXXL's $23.99. igc Viewer also leads on iOS requirement (16.0 vs 18.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

igc Viewer is free to download; SkyLoggerXXL costs $23.99 up front. SkyLoggerXXL sells 8 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.

SkyLoggerXXL ships an update every 2 months, igc Viewer every 4 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SkyLoggerXXL | igc Viewer |
| --- | --- | --- |
| Price | $23.99 | **Free** |
| Rating | — | **[4.0 (2 ratings)](https://appshunter.io/ios/app/igc-viewer/id1428270954/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | — | Free with in-app purchases |
| Size | 19 MB | 83 MB |
| Requires iOS | 18.6 | **16.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Hartwig Wiesmann](https://appshunter.io/developer/1658877258) | [Hiroki Kijima](https://appshunter.io/developer/1326808571) |

## What reviewers say

### SkyLoggerXXL

[App page](https://appshunter.io/ios/app/skyloggerxxl/id418818575)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Accelerometer | $1.99 | one-time |
| 2D maps from 3rd parties | $3.99 | one-time |
| 3D maps | $3.99 | one-time |
| Maps from 3rd parties | $4.99 | one-time |
| FlyNet accessory | $9.99 | one-time |
| SensBox accessory | $9.99 | one-time |
| XC Tracer accessory | $9.99 | one-time |
| SkyDrop accessory | $9.99 | 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:** Apple Watch app, Vision Pro support

**In-app purchases (1)**

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


## Frequently asked questions

### Is SkyLoggerXXL free?

SkyLoggerXXL costs $23.99, and also offers in-app purchases.

### Is igc Viewer free?

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

### Do SkyLoggerXXL or igc Viewer have ads?

Neither SkyLoggerXXL nor igc Viewer shows ads.

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

SkyLoggerXXL ships an update every 2 months, and igc Viewer every 4 months. Most recently, SkyLoggerXXL was updated on October 26, 2026 and igc Viewer on October 25, 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.*