# sonnen vs Wichtel mit mir

The clearest difference is update cadence: sonnen at fortnightly against Wichtel mit mir's every 2 months. Wichtel mit mir's advantage is device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

sonnen ships an update fortnightly, Wichtel mit mir every 2 months. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | sonnen | Wichtel mit mir |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (20 ratings)](https://appshunter.io/ios/app/sonnen/id6444147829/reviews)** | — |
| Number of ratings | **20** | — |
| Positive reviews | 38.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free | — |
| Size | 66 MB | 25 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [sonnen GmbH](https://appshunter.io/developer/547979417) | [JORG BALTERS](https://appshunter.io/developer/1724350899) |

## What reviewers say

### sonnen

[App page](https://appshunter.io/ios/app/sonnen/id6444147829)

Manage your clean energy supply from anywhere. Monitor your solar PV system, battery, and EV charger in real-time. Gain insights into energy consumption and generation to optimize your usage and prepare for outages.

**Highlights:** Real-time energy data and insights, Monitor solar PV system performance, Track battery and EV charger status, View live energy flow and consumption, Access energy contract details, Set battery backup buffer

**Features:** Vision Pro support

**In-app purchases:** none


### Wichtel mit mir

[App page](https://appshunter.io/ios/app/wichtel-mit-mir/id6804458486)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is sonnen free?

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

### Is Wichtel mit mir free?

Wichtel mit mir is free to download, with no in-app purchases.

### Do sonnen or Wichtel mit mir have ads?

Neither sonnen nor Wichtel mit mir shows ads.

### Which is updated more often, sonnen or Wichtel mit mir?

sonnen ships an update fortnightly, and Wichtel mit mir every 2 months. Most recently, sonnen was updated on November 3, 2026 and Wichtel mit mir on October 29, 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.*