# Bau vs Site Progress Generator

The clearest difference is in-app purchases: Bau at none against Site Progress Generator's 1. Bau also leads on iOS requirement (14.0 vs 17.0). Site Progress Generator's advantage is update cadence (monthly vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Site Progress Generator sells 1 one-off in-app purchase. Bau asks for nothing beyond the download.

Bau ships an update every 2 months, Site Progress Generator monthly. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Bau | Site Progress Generator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 1 MB | 1 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Open Experience GmbH](https://appshunter.io/developer/952266236) | [Su YI-HUNG](https://appshunter.io/developer/6771587681) |

## What reviewers say

### Bau

[App page](https://appshunter.io/ios/app/bau-checklisten/id1435049037)

**In-app purchases:** none


### Site Progress Generator

[App page](https://appshunter.io/ios/app/site-progress-generator/id6775215887)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Unlock | $3.99 | one-time |


## Frequently asked questions

### Is Bau free?

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

### Is Site Progress Generator free?

Site Progress Generator is free to download, with in-app purchases available.

### Do Bau or Site Progress Generator have ads?

Neither Bau nor Site Progress Generator shows ads.

### Which is updated more often, Bau or Site Progress Generator?

Bau ships an update every 2 months, and Site Progress Generator monthly. Most recently, Bau was updated on October 12, 2026 and Site Progress Generator on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*