# AS3 vs Starlog

The clearest difference is in-app purchases: AS3 at none against Starlog's 2. Starlog's advantage is update cadence (every 9 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Starlog sells 2 in-app purchases, starting at $11.49 per month. AS3 asks for nothing beyond the download.

AS3 ships an update every 3 weeks, Starlog every 9 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | AS3 | Starlog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Size | 75 MB | 76 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [AS3 A/S](https://appshunter.io/developer/1693821910) | [Jacob Baagø](https://appshunter.io/developer/6772965839) |

## What reviewers say

### AS3

[App page](https://appshunter.io/ios/app/as3/id6477783980)

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

**In-app purchases:** none


### Starlog

[App page](https://appshunter.io/ios/app/starlog-pilot-logbook/id6772965837)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starlog Pro Monthly | $11.49 | per month |
| Starlog Pro Yearly | $115.99 | per year |


## Frequently asked questions

### Is AS3 free?

AS3 is free to download, with no in-app purchases.

### Is Starlog free?

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

### Do AS3 or Starlog have ads?

Neither AS3 nor Starlog shows ads.

### Which is updated more often, AS3 or Starlog?

AS3 ships an update every 3 weeks, and Starlog every 9 days. Most recently, AS3 was updated on November 4, 2026 and Starlog on October 31, 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.*