# walkable vs sonnenPro

The clearest difference is iOS requirement: sonnenPro at 13.0 against walkable's 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.

walkable ships an update monthly, sonnenPro every 3 weeks. The most recent releases landed on October 6, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | walkable | sonnenPro |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 36 MB | 44 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Aarefabrik GmbH](https://appshunter.io/developer/1089356488) | [sonnen GmbH](https://appshunter.io/developer/547979417) |

## What reviewers say

### walkable

[App page](https://appshunter.io/ios/app/walkable/id6502521310)

**Features:** macOS Compatibility

**In-app purchases:** none


### sonnenPro

[App page](https://appshunter.io/ios/app/sonnenpro/id6758942267)

This app intelligently manages your home's energy devices, including solar power, storage, heat pumps, and EV chargers. It optimizes electricity usage, production, and storage based on AI strategies for cost-effectiveness and self-sufficiency.

**Highlights:** Connects electricity devices, AI-driven energy optimization, Manages solar power plants, Integrates energy storage, Controls heat pumps, Links electric chargers, Maximizes self-sufficiency

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is walkable free?

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

### Is sonnenPro free?

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

### Do walkable or sonnenPro have ads?

Neither walkable nor sonnenPro shows ads.

### Which is updated more often, walkable or sonnenPro?

walkable ships an update monthly, and sonnenPro every 3 weeks. Most recently, walkable was updated on October 6, 2026 and sonnenPro on October 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*