# SonnexTech vs Hailei Smart Energy

The clearest difference is update cadence: SonnexTech at every 3 months against Hailei Smart Energy's every 23 months. Hailei Smart Energy's advantage is iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SonnexTech ships an update every 3 months, Hailei Smart Energy every 23 months. Both last shipped on November 4, 2026.

## The numbers

| Metric | SonnexTech | Hailei Smart Energy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 23 months |
| Size | 98 MB | 167 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Sonnex Energie GmbH](https://appshunter.io/developer/1736462787) | [Shen Zhen Hailei New Energy Co., Ltd](https://appshunter.io/developer/1737150028) |

## What reviewers say

### SonnexTech

[App page](https://appshunter.io/ios/app/sonnextech/id6479600876)

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

**In-app purchases:** none


### Hailei Smart Energy

[App page](https://appshunter.io/ios/app/hailei-smart-energy/id6479731914)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SonnexTech free?

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

### Is Hailei Smart Energy free?

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

### Do SonnexTech or Hailei Smart Energy have ads?

Neither SonnexTech nor Hailei Smart Energy shows ads.

### Which is updated more often, SonnexTech or Hailei Smart Energy?

SonnexTech ships an update every 3 months, and Hailei Smart Energy every 23 months. Most recently, SonnexTech was updated on November 4, 2026 and Hailei Smart Energy on November 4, 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.*