# Bautagebuch Mobile vs 123onsite

The clearest difference is review sentiment: Bautagebuch Mobile at 80% against 123onsite's 38%. Bautagebuch Mobile also leads on update cadence (every 4 days vs fortnightly). 123onsite's advantage is in-app purchases (none vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Bautagebuch Mobile sells 1 one-off in-app purchase. 123onsite asks for nothing beyond the download.

Bautagebuch Mobile ships an update every 4 days, 123onsite fortnightly. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Bautagebuch Mobile | 123onsite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/123onsite/id946458430/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **80.0% of reviews** | 38.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Fortnightly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 219 MB | 19 MB |
| Requires iOS | **12.2** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Weise Software GmbH](https://appshunter.io/developer/477665160) | [123erfasst.de GmbH](https://appshunter.io/developer/946458429) |

## What reviewers say

### Bautagebuch Mobile

[App page](https://appshunter.io/ios/app/bautagebuch-mobile/id881438104)

Document construction progress with detailed daily reports. Track weather, participants, and site status, and attach photos to each entry. Sync data with desktop software for comprehensive project management.

**Highlights:** Detailed daily construction reports, Weather tracking, Participant and site status logging, Photo attachments, Data synchronization with Windows software, PDF/HTML report export

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bautagebuch Mobile: Mailversand | $8.99 | one-time |


### 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


## Frequently asked questions

### Is Bautagebuch Mobile free?

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

### Is 123onsite free?

123onsite is free to download, with no in-app purchases.

### Do Bautagebuch Mobile or 123onsite have ads?

Neither Bautagebuch Mobile nor 123onsite shows ads.

### Which is updated more often, Bautagebuch Mobile or 123onsite?

Bautagebuch Mobile ships an update every 4 days, and 123onsite fortnightly. Most recently, Bautagebuch Mobile was updated on October 9, 2026 and 123onsite on October 24, 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.*