# AvionLog vs Skyden

The clearest difference is update cadence: Skyden at every 2 days against AvionLog's every 6 weeks. AvionLog's advantage is iOS requirement (12.0 vs 17.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. AvionLog sells 2 in-app purchases, starting at $39.99 per year and Skyden sells 8 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

AvionLog ships an update every 6 weeks, Skyden every 2 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | AvionLog | Skyden |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (7 ratings)](https://appshunter.io/ios/app/avionlog/id1478648063/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | **90.9% of reviews** | 90.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 97 MB | 133 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Green Twin Software Ltd](https://appshunter.io/developer/1478648062) | [Guillaume Huchet](https://appshunter.io/developer/1773347643) |

## What reviewers say

### AvionLog

[App page](https://appshunter.io/ios/app/avionlog/id1478648063)

This advanced pilot logbook offers fast flight entry, custom reports, and secure backups. It synchronizes across iOS devices for a simple price, with a free trial period for new users.

**Highlights:** Fast flight entry, Custom reports with map view, Secure backup features, Live sync across devices, Import from other logbooks, Track flight and duty limitations, Digital FAA endorsements

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AvionLog Yearly Subscription | $39.99 | per year |
| AvionLog Free Trial | Free | one-time |


### Skyden

[App page](https://appshunter.io/ios/app/skyden-pilot-logbook/id6745750700)

This app is a modern pilot logbook designed for professionals. It allows for quick flight logging, secure cloud synchronization, and generation of compliant exportable logbooks. Track certificates and licenses with automatic reminders, and import data from other logbook services.

**Highlights:** Offline flight logging, Secure cloud sync, Exportable PDF logbooks, Certificate and license tracking, Import from other logbooks, Interactive world map of visited airports, Crew management and digital signatures

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Skyden Pro | $9.99 | per month |
| Skyden Pro | $49.99 | per year |
| Skyden Pro | $59.99 | per year |
| Skyden Pro | $79.99 | per year |
| Skyden Pro | $79.99 | per year |
| Skyden Pro | $79.99 | per year |
| Skyden Pro | $79.99 | per year |
| Skyden Plus Lifetime | $179.99 | one-time |


## Frequently asked questions

### Is AvionLog free?

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

### Is Skyden free?

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

### Do AvionLog or Skyden have ads?

Neither AvionLog nor Skyden shows ads.

### Which is updated more often, AvionLog or Skyden?

AvionLog ships an update every 6 weeks, and Skyden every 2 days. Most recently, AvionLog was updated on October 24, 2026 and Skyden on October 28, 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.*