# HL vs Raystech Energy

The clearest difference is iOS requirement: HL at 9.0 against Raystech Energy's 17.6. 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.

HL ships an update monthly, Raystech Energy every 2 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | HL | Raystech Energy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 18 MB | 53 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [上海铭控传感技术有限公司](https://appshunter.io/developer/1687248200) | [寿杰 张](https://appshunter.io/developer/1745989953) |

## What reviewers say

### HL

[App page](https://appshunter.io/ios/app/hl-151-en/id6449443909)

**In-app purchases:** none


### Raystech Energy

[App page](https://appshunter.io/ios/app/raystech-energy/id6502583241)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HL free?

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

### Is Raystech Energy free?

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

### Do HL or Raystech Energy have ads?

Neither HL nor Raystech Energy shows ads.

### Which is updated more often, HL or Raystech Energy?

HL ships an update monthly, and Raystech Energy every 2 months. Most recently, HL was updated on November 3, 2026 and Raystech 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.*