# SMA Energy vs FieldReg

The clearest difference is in-app purchases: SMA Energy at none against FieldReg's 1. SMA Energy also leads on iOS requirement (16.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. FieldReg sells 1 one-off in-app purchase. SMA Energy asks for nothing beyond the download.

## The numbers

| Metric | SMA Energy | FieldReg |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (1.4K ratings)](https://appshunter.io/ios/app/sma-energy/id1476822720/reviews)** | — |
| Number of ratings | **1.4K** | — |
| Positive reviews | 21.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 170 MB | 1 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SMA Solar Technology AG](https://appshunter.io/developer/331869966) | [Aphelion Engineering Pty Ltd](https://appshunter.io/developer/1896778280) |

## What reviewers say

### 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


### FieldReg

[App page](https://appshunter.io/ios/app/fieldreg-modbus-decoder/id6782255844)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FieldReg Pro | $12.99 | one-time |


## Frequently asked questions

### Is SMA Energy free?

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

### Is FieldReg free?

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

### Do SMA Energy or FieldReg have ads?

Neither SMA Energy nor FieldReg shows ads.

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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.*