# Bookfast.io vs AUAU

The clearest difference is update cadence: AUAU at every 2 weeks against Bookfast.io's every 7 months. Bookfast.io's advantage is iOS requirement (12.0 vs 15.5). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Bookfast.io ships an update every 7 months, AUAU every 2 weeks. The most recent releases landed on September 17, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Bookfast.io | AUAU |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 weeks** |
| Size | 29 MB | 105 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Codaplant Limited](https://appshunter.io/developer/1335555538) | [auau technology limited](https://appshunter.io/developer/1579268710) |

## What reviewers say

### Bookfast.io

[App page](https://appshunter.io/ios/app/bookfastio/id1626776889)

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none


### AUAU

[App page](https://appshunter.io/ios/app/auau/id6670464271)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bookfast.io free?

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

### Is AUAU free?

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

### Do Bookfast.io or AUAU have ads?

Neither Bookfast.io nor AUAU shows ads.

### Which is updated more often, Bookfast.io or AUAU?

Bookfast.io ships an update every 7 months, and AUAU every 2 weeks. Most recently, Bookfast.io was updated on September 17, 2026 and AUAU on September 23, 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.*