# sonnen vs Schafkopf Tracker

The clearest difference is in-app purchases: sonnen at none against Schafkopf Tracker's 1. sonnen also leads on iOS requirement (15.1 vs 26.0). Schafkopf Tracker's advantage is update cadence (every 5 days vs fortnightly). On price, ads and device support there is nothing between them.

Both are free to download. Schafkopf Tracker sells 1 one-off in-app purchase. sonnen asks for nothing beyond the download.

sonnen ships an update fortnightly, Schafkopf Tracker every 5 days. The most recent releases landed on October 18, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | sonnen | Schafkopf Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (20 ratings)](https://appshunter.io/ios/app/sonnen/id6444147829/reviews)** | — |
| Number of ratings | **20** | — |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Free | — |
| Size | 66 MB | 9 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [sonnen GmbH](https://appshunter.io/developer/547979417) | [Adrian Pomayr](https://appshunter.io/developer/6790809327) |

## 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


### Schafkopf Tracker

[App page](https://appshunter.io/ios/app/schafkopf-tracker/id6790808695)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $2.99 | one-time |


## Frequently asked questions

### Is sonnen free?

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

### Is Schafkopf Tracker free?

Schafkopf Tracker is free to download, with in-app purchases available.

### Do sonnen or Schafkopf Tracker have ads?

Neither sonnen nor Schafkopf Tracker shows ads.

### Which is updated more often, sonnen or Schafkopf Tracker?

sonnen ships an update fortnightly, and Schafkopf Tracker every 5 days. Most recently, sonnen was updated on October 18, 2026 and Schafkopf Tracker on October 7, 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.*