# Lumin Smart vs sonnen

The clearest difference is rating: sonnen at 3.5 against Lumin Smart's 2.3. sonnen also leads on ratings volume (20 vs 3) and review sentiment (38% vs 29%). Lumin Smart's advantage is iOS requirement (12.0 vs 15.1). 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.

sonnen holds the better App Store score, 3.5 against 2.3. That said, the two scores are not equally well evidenced: sonnen has 20 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 29% of Lumin Smart's written reviews are positive against 38% of sonnen's.

Lumin Smart ships an update every 3 weeks, sonnen fortnightly. The most recent releases landed on June 5, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Lumin Smart | sonnen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/lumin-smart/id1472704942/reviews) | **[3.5 (20 ratings)](https://appshunter.io/ios/app/sonnen/id6444147829/reviews)** |
| Number of ratings | 3 | **20** |
| Positive reviews | 28.6% of reviews | **37.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 58 MB | 66 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [COULOMB, INC](https://appshunter.io/developer/1472704941) | [sonnen GmbH](https://appshunter.io/developer/547979417) |

## What reviewers say

### Lumin Smart

[App page](https://appshunter.io/ios/app/lumin-smart/id1472704942)

Take full control of your home's energy usage with this app. Monitor real-time consumption, manage circuits during blackouts, and optimize battery and solar systems to reduce costs.

**Highlights:** Blackout management, Customizable circuit scheduling, Battery optimization, Real-time energy monitoring, Solar+storage management

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Lumin Smart free?

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

### Is sonnen free?

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

### Which has better reviews, Lumin Smart or sonnen?

sonnen is rated higher. Lumin Smart averages 2.3 out of 5 from 3 ratings, while sonnen averages 3.5 from 20 ratings.

### Do Lumin Smart or sonnen have ads?

Neither Lumin Smart nor sonnen shows ads.

### Which is updated more often, Lumin Smart or sonnen?

Lumin Smart ships an update every 3 weeks, and sonnen fortnightly. Most recently, Lumin Smart was updated on June 5, 2026 and sonnen on September 26, 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.*