# REFUset vs SMA Energy

The clearest difference is iOS requirement: REFUset at 10.0 against SMA Energy's 16.0. 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.

REFUset ships an update every 5 weeks, SMA Energy every 2 months. The most recent releases landed on October 4, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | REFUset | SMA Energy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.8 (1.4K ratings)](https://appshunter.io/ios/app/sma-energy/id1476822720/reviews)** |
| Number of ratings | — | **1.4K** |
| Positive reviews | — | 28.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 72 MB | 170 MB |
| Requires iOS | **10.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [REFU Elektronik GmbH](https://appshunter.io/developer/1128745191) | [SMA Solar Technology AG](https://appshunter.io/developer/331869966) |

## What reviewers say

### REFUset

[App page](https://appshunter.io/ios/app/refuset/id1437386453)

**Features:** macOS Compatibility

**In-app purchases:** none


### SMA Energy

[App page](https://appshunter.io/ios/app/sma-energy/id1476822720)

Monitor and manage your home energy system and electric vehicle charging. Optimize solar power usage for sustainability and cost savings. Track energy production, consumption, and grid supply in a clear, structured format.

**Highlights:** Energy system overview, Track energy production and consumption, Optimize solar power utilization, Control EV charging, Forecast-based charging, Optimized charging with solar power

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Accurate current generation data
- 👍 Improved app design and visuals
- 💡 Expanded functionality (e-mobility, forecasting)
- 🔋 Reliable performance

**What reviewers complain about**

- 🐛 Frequent app crashes or freezes
- 🕰️ Slow data updates and loading times
- 📊 Limited historical data and analytics
- 🔍 Lack of detailed system information
- 🔌 Incompatibility with older devices/OS

**Reported bugs**

- Incorrect or missing generation data
- Unreliable login and password reset functionality
- Inconsistent app behavior across devices
- Inability to access system logs and diagnostics

**Requested features**

- Ability to customize data views and graphs
- Improved notification and alert system
- Integration with home automation and smart devices
- Support for off-grid and battery-only systems
- Easier system registration and data migration


## Frequently asked questions

### Is REFUset free?

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

### Is SMA Energy free?

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

### Do REFUset or SMA Energy have ads?

Neither REFUset nor SMA Energy shows ads.

### Which is updated more often, REFUset or SMA Energy?

REFUset ships an update every 5 weeks, and SMA Energy every 2 months. Most recently, REFUset was updated on October 4, 2026 and SMA Energy on October 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.*