# BlueBattery vs WATTSTUNDESOLAR

The clearest difference is iOS requirement: WATTSTUNDESOLAR at 11.0 against BlueBattery's 13.0. 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.

Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on October 11, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | BlueBattery | WATTSTUNDESOLAR |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 81.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | Every 5 weeks |
| Monetization | Free | — |
| Size | 22 MB | 52 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Kai Scheffer](https://appshunter.io/developer/816144806) | [江西达伙网络科技有限公司](https://appshunter.io/developer/1234844673) |

## 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


### WATTSTUNDESOLAR

[App page](https://appshunter.io/ios/app/wattstundesolar/id6449745523)

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

**In-app purchases:** none


## Frequently asked questions

### Is BlueBattery free?

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

### Is WATTSTUNDESOLAR free?

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

### Do BlueBattery or WATTSTUNDESOLAR have ads?

Neither BlueBattery nor WATTSTUNDESOLAR shows ads.

### Which is updated more often, BlueBattery or WATTSTUNDESOLAR?

BlueBattery ships an update every 5 weeks, and WATTSTUNDESOLAR every 5 weeks. Most recently, BlueBattery was updated on October 11, 2026 and WATTSTUNDESOLAR on October 30, 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.*