# tado° vs sonnen

The clearest difference is rating: tado° at 4.5 against sonnen's 3.5. tado° also leads on ratings volume (778 vs 20) and update cadence (weekly vs fortnightly). sonnen's advantage is in-app purchases (none vs 12) and iOS requirement (15.1 vs 18.0). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. tado° sells 10 in-app purchases, starting at $2.99 per month. sonnen asks for nothing beyond the download.

tado° holds the better App Store score, 4.5 against 3.5. That said, the two scores are not equally well evidenced: tado° has 778 ratings behind it against 20, so its average is the more settled of the two. Written reviews point the same way: 43% of tado°'s written reviews are positive against 38% of sonnen's.

tado° ships an update weekly, sonnen fortnightly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | tado° | sonnen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (778 ratings)](https://appshunter.io/ios/app/tado/id574418486/reviews)** | [3.5 (20 ratings)](https://appshunter.io/ios/app/sonnen/id6444147829/reviews) |
| Number of ratings | **778** | 20 |
| Positive reviews | **42.6% of reviews** | 38.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 153 MB | 66 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [tado°](https://appshunter.io/developer/574418629) | [sonnen GmbH](https://appshunter.io/developer/547979417) |

## What reviewers say

### tado°

[App page](https://appshunter.io/ios/app/tado/id574418486)

This app allows you to remotely control your home's heating, air conditioning, and heat pumps. It helps reduce energy consumption and costs through intuitive control and insights into your usage patterns.

**Highlights:** Remote heating and AC control, Energy usage insights, Energy-saving tips, Automated climate control, Matter and Thread compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Assist / Auto-Assist | $2.99 | per month |
| AI Assist / Auto-Assist | $3.99 | per month |
| AI Assist / Auto-Assist | $3.99 | per month |
| AI Assist / Auto-Assist | $3.99 | per month |
| AI Assist / Auto-Assist | $3.99 | per month |
| Balance AC - Yearly Plan | $29.99 | per year |
| AI Assist / Auto-Assist | $29.99 | per year |
| AI Assist / Auto-Assist | $29.99 | per year |
| AI Assist / Auto-Assist | $29.99 | per year |
| Balance for Heat Pumps | $44.99 | per year |

**What reviewers like**

- 🚀 Efficient heating control
- 🔒 Secure and private
- 👍 Easy to install and set up
- 👍 Useful scheduling and automation features
- 👍 Convenient remote control

**What reviewers complain about**

- 🐛 Frequent connectivity issues
- 🔋 Battery life problems with smart radiator valves
- 👎 Overly aggressive upselling of subscription features
- 👎 Unreliable open window detection
- 👎 Lack of flexibility in temperature control

**Reported bugs**

- App frequently crashes or becomes unresponsive
- Syncing issues between app and hardware
- Incorrect temperature readings from smart radiator valves
- Inability to add/assign rooms in the app

**Requested features**

- Ability to create and apply scheduling templates
- Improved Siri/HomeKit integration
- Option to disable subscription upselling
- More granular temperature control
- Better battery life indicators


### 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 tado° free?

tado° is free to download, with in-app purchases available.

### Is sonnen free?

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

### Which has better reviews, tado° or sonnen?

tado° is rated higher. tado° averages 4.5 out of 5 from 778 ratings, while sonnen averages 3.5 from 20 ratings.

### Do tado° or sonnen have ads?

Neither tado° nor sonnen shows ads.

### Which is updated more often, tado° or sonnen?

tado° ships an update weekly, and sonnen fortnightly. Most recently, tado° was updated on November 1, 2026 and sonnen 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.*