# ProjektApp vs BauButler

ProjektApp and BauButler are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

ProjektApp ships an update every 2 months, BauButler every 3 months. The most recent releases landed on October 20, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | ProjektApp | BauButler |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 143 MB | 58 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [projekt software gmbh](https://appshunter.io/developer/1090948707) | [ambigus GmbH](https://appshunter.io/developer/1511558925) |

## What reviewers say

### ProjektApp

[App page](https://appshunter.io/ios/app/projektapp/id1090948708)

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

**In-app purchases:** none


### BauButler

[App page](https://appshunter.io/ios/app/baubutler/id1511558926)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ProjektApp free?

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

### Is BauButler free?

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

### Do ProjektApp or BauButler have ads?

Neither ProjektApp nor BauButler shows ads.

### Which is updated more often, ProjektApp or BauButler?

ProjektApp ships an update every 2 months, and BauButler every 3 months. Most recently, ProjektApp was updated on October 20, 2026 and BauButler on October 15, 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.*