# AvionLog vs 4Pilots

The clearest difference is ads: AvionLog at none against 4Pilots's shown. AvionLog also leads on update cadence (every 6 weeks vs every 19 months) and iOS requirement (12.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. AvionLog sells 2 in-app purchases, starting at $39.99 per year and 4Pilots sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

AvionLog ships an update every 6 weeks, 4Pilots every 19 months. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | AvionLog | 4Pilots |
| --- | --- | --- |
| 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 | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 19 months |
| Monetization | Free with in-app purchases | — |
| Size | 97 MB | 47 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Green Twin Software Ltd](https://appshunter.io/developer/1478648062) | [Milos Cubrilo](https://appshunter.io/developer/1676618688) |

## 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 |


### 4Pilots

[App page](https://appshunter.io/ios/app/4pilots-e6b-and-flight-plans/id6446201128)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Yearly Subscription | $17.99 | per year |
| 4Pilots Pro | $24.99 | one-time |


## Frequently asked questions

### Is AvionLog free?

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

### Is 4Pilots free?

4Pilots is free to download, with in-app purchases available.

### Do AvionLog or 4Pilots have ads?

4Pilots shows ads; AvionLog does not.

### Which is updated more often, AvionLog or 4Pilots?

AvionLog ships an update every 6 weeks, and 4Pilots every 19 months. Most recently, AvionLog was updated on October 24, 2026 and 4Pilots on October 15, 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.*