# sonnen vs WoopWoop

The clearest difference is price: sonnen at Free against WoopWoop's $1.99. sonnen also leads on update cadence (fortnightly vs every 10 months) and iOS requirement (15.1 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

sonnen is free to download; WoopWoop costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

sonnen ships an update fortnightly, WoopWoop every 10 months. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | sonnen | WoopWoop |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| 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 10 months |
| Monetization | Free | — |
| Size | 66 MB | 94 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [sonnen GmbH](https://appshunter.io/developer/547979417) | [Mechanikus, UAB](https://appshunter.io/developer/1097513919) |

## 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


### WoopWoop

[App page](https://appshunter.io/ios/app/woopwoop/id6752342735)

**In-app purchases:** none


## Frequently asked questions

### Is sonnen free?

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

### Is WoopWoop free?

WoopWoop costs $1.99, with no in-app purchases.

### Do sonnen or WoopWoop have ads?

Neither sonnen nor WoopWoop shows ads.

### Which is updated more often, sonnen or WoopWoop?

sonnen ships an update fortnightly, and WoopWoop every 10 months. Most recently, sonnen was updated on October 30, 2026 and WoopWoop on October 28, 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.*