# OnSide Pro vs BauMaster Site Management

The clearest difference is update cadence: BauMaster Site Management at every 3 weeks against OnSide Pro's every 3 months. 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.

OnSide Pro ships an update every 3 months, BauMaster Site Management every 3 weeks. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | OnSide Pro | BauMaster Site Management |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 18 MB | 85 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oil Productions](https://appshunter.io/developer/404736586) | [PASit software GmbH](https://appshunter.io/developer/1305646760) |

## What reviewers say

### OnSide Pro

[App page](https://appshunter.io/ios/app/onside-pro-cact/id1098956200)

**Features:** macOS Compatibility

**In-app purchases:** none


### BauMaster Site Management

[App page](https://appshunter.io/ios/app/baumaster-site-management/id1527554138)

Streamline construction project management with this app. Centralize tasks, defects, plans, and documentation for efficient on-site and office work. Facilitates real-time collaboration for the entire project team.

**Highlights:** Centralized task and defect management, Legally valid construction documentation, Mobile construction scheduling, BIM viewer with markers, Owner/tenant management, On-site task recording with voice and handwriting recognition, Photo documentation with automatic project assignment

**In-app purchases:** none


## Frequently asked questions

### Is OnSide Pro free?

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

### Is BauMaster Site Management free?

BauMaster Site Management is free to download, with no in-app purchases.

### Do OnSide Pro or BauMaster Site Management have ads?

Neither OnSide Pro nor BauMaster Site Management shows ads.

### Which is updated more often, OnSide Pro or BauMaster Site Management?

OnSide Pro ships an update every 3 months, and BauMaster Site Management every 3 weeks. Most recently, OnSide Pro was updated on October 26, 2026 and BauMaster Site Management on October 27, 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.*