# FlightDiaryApp vs SkyLog

The clearest difference is in-app purchases: FlightDiaryApp at none against SkyLog's 2. FlightDiaryApp also leads on ads (none vs shown). SkyLog's advantage is update cadence (every 2 weeks vs every 5 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. SkyLog sells 2 in-app purchases, starting at $2.99 per month. FlightDiaryApp asks for nothing beyond the download.

FlightDiaryApp ships an update every 5 weeks, SkyLog every 2 weeks. The most recent releases landed on September 22, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | FlightDiaryApp | SkyLog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Size | 24 MB | 106 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [HSIA-TING YEH](https://appshunter.io/developer/1855889149) | [SUNYOUNG PARK](https://appshunter.io/developer/6788016402) |

## What reviewers say

### FlightDiaryApp

[App page](https://appshunter.io/ios/app/flightdiaryapp/id6778781087)

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

**In-app purchases:** none


### SkyLog

[App page](https://appshunter.io/ios/app/skylog-flight-logbook/id6788016400)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SkyLog Plus Monthly | $2.99 | per month |
| SkyLog Plus Yearly | $24.99 | per year |


## Frequently asked questions

### Is FlightDiaryApp free?

FlightDiaryApp is free to download, with no in-app purchases.

### Is SkyLog free?

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

### Do FlightDiaryApp or SkyLog have ads?

SkyLog shows ads; FlightDiaryApp does not.

### Which is updated more often, FlightDiaryApp or SkyLog?

FlightDiaryApp ships an update every 5 weeks, and SkyLog every 2 weeks. Most recently, FlightDiaryApp was updated on September 22, 2026 and SkyLog on September 20, 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.*