# Fill Light vs WuYa Energy

The clearest difference is iOS requirement: Fill Light at 9.0 against WuYa Energy's 15.0. 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.

Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Fill Light | WuYa Energy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | Every 6 months |
| Size | 34 MB | 155 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [华 王](https://appshunter.io/developer/1533933432) | [SanKeXiaoCao(ShenZhen)IOT Technology Company Limited](https://appshunter.io/developer/1550220407) |

## What reviewers say

### Fill Light

[App page](https://appshunter.io/ios/app/fill-light/id1600875729)

**In-app purchases:** none


### WuYa Energy

[App page](https://appshunter.io/ios/app/wuya-energy/id6759516211)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fill Light free?

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

### Is WuYa Energy free?

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

### Do Fill Light or WuYa Energy have ads?

Neither Fill Light nor WuYa Energy shows ads.

### Which is updated more often, Fill Light or WuYa Energy?

Fill Light ships an update every 6 months, and WuYa Energy every 6 months. Most recently, Fill Light was updated on October 25, 2026 and WuYa Energy on October 28, 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.*