# PRIVATBAU vs B2B

The clearest difference is in-app purchases: PRIVATBAU at none against B2B's 1. PRIVATBAU also leads on iOS requirement (12.0 vs 15.1). B2B's advantage is update cadence (every 2 months vs every 13 months). On price, ads and device support there is nothing between them.

Both are free to download. B2B sells 1 in-app purchase, starting at $89.99 per month. PRIVATBAU asks for nothing beyond the download.

PRIVATBAU ships an update every 13 months, B2B every 2 months. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PRIVATBAU | B2B |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 months** |
| Size | 36 MB | 56 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PRIVATBAU GmbH fur Baubetreuung Hamburg](https://appshunter.io/developer/1801206900) | [MASA (ma-sa.eu) GmbH](https://appshunter.io/developer/1823610754) |

## What reviewers say

### PRIVATBAU

[App page](https://appshunter.io/ios/app/privatbau/id6743083826)

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

**In-app purchases:** none


### B2B

[App page](https://appshunter.io/ios/app/b2b-bau/id6748550553)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $89.99 | per month |


## Frequently asked questions

### Is PRIVATBAU free?

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

### Is B2B free?

B2B is free to download, with in-app purchases available.

### Do PRIVATBAU or B2B have ads?

Neither PRIVATBAU nor B2B shows ads.

### Which is updated more often, PRIVATBAU or B2B?

PRIVATBAU ships an update every 13 months, and B2B every 2 months. Most recently, PRIVATBAU was updated on October 28, 2026 and B2B on October 25, 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.*