# BlueBattery vs SCHULZ TREUHAND

The clearest difference is iOS requirement: BlueBattery at 13.0 against SCHULZ TREUHAND's 15.6. 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.

BlueBattery ships an update every 5 weeks, SCHULZ TREUHAND every 2 months. The most recent releases landed on October 11, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | BlueBattery | SCHULZ TREUHAND |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 81.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 22 MB | 46 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kai Scheffer](https://appshunter.io/developer/816144806) | [Idwell GmbH](https://appshunter.io/developer/1269662593) |

## What reviewers say

### BlueBattery

[App page](https://appshunter.io/ios/app/bluebattery/id1233388568)

Monitor and record vital electrical parameters of your RV battery system in real-time. View live data, energy mix, and historical records for diagnostics. Configure settings and update device firmware.

**Highlights:** Real-time electrical parameter display, Simultaneous connection for energy overview, Historical data for diagnostics, Export data to CSV, Device configuration and settings, Firmware updates

**Features:** macOS Compatibility

**In-app purchases:** none


### SCHULZ TREUHAND

[App page](https://appshunter.io/ios/app/schulz-treuhand/id6474667908)

**In-app purchases:** none


## Frequently asked questions

### Is BlueBattery free?

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

### Is SCHULZ TREUHAND free?

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

### Do BlueBattery or SCHULZ TREUHAND have ads?

Neither BlueBattery nor SCHULZ TREUHAND shows ads.

### Which is updated more often, BlueBattery or SCHULZ TREUHAND?

BlueBattery ships an update every 5 weeks, and SCHULZ TREUHAND every 2 months. Most recently, BlueBattery was updated on October 11, 2026 and SCHULZ TREUHAND on October 16, 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.*