# 123onsite vs BauMaster Site Management

The clearest difference is review sentiment: BauMaster Site Management at 100% against 123onsite's 38%. 123onsite's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

123onsite ships an update fortnightly, BauMaster Site Management every 3 weeks. The most recent releases landed on October 24, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 123onsite | BauMaster Site Management |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/123onsite/id946458430/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 38.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free | Free |
| Size | 19 MB | 85 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [123erfasst.de GmbH](https://appshunter.io/developer/946458429) | [PASit software GmbH](https://appshunter.io/developer/1305646760) |

## What reviewers say

### 123onsite

[App page](https://appshunter.io/ios/app/123onsite/id946458430)

This app connects construction sites with the office, allowing for easy recording and sharing of site activities. It offers customizable modules for time tracking, payroll, and project management, saving time and costs.

**Highlights:** Real-time site-to-office connection, Customizable modules (time tracking, payroll, etc.), Digital site diary, Equipment management, Task and defect tracking, Photo documentation, Customizable access permissions

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

**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 123onsite free?

123onsite 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 123onsite or BauMaster Site Management have ads?

Neither 123onsite nor BauMaster Site Management shows ads.

### Which is updated more often, 123onsite or BauMaster Site Management?

123onsite ships an update fortnightly, and BauMaster Site Management every 3 weeks. Most recently, 123onsite was updated on October 24, 2026 and BauMaster Site Management on October 4, 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.*