# Opt Widon Power vs LightMeter Pro

The clearest difference is in-app purchases: Opt Widon Power at none against LightMeter Pro's 3. Opt Widon Power also leads on iOS requirement (12.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. LightMeter Pro sells 3 in-app purchases, starting at $2.99 per 7 days. Opt Widon Power asks for nothing beyond the download.

## The numbers

| Metric | Opt Widon Power | LightMeter Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 60 MB | 11 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Hunan Weidian Technology Co., Ltd.](https://appshunter.io/developer/1504200881) | [Alexis Raimbault](https://appshunter.io/developer/1695318313) |

## What reviewers say

### Opt Widon Power

[App page](https://appshunter.io/ios/app/opt-widon-power/id6702011270)

**Features:** macOS Compatibility

**In-app purchases:** none


### LightMeter Pro

[App page](https://appshunter.io/ios/app/lightmeter-pro-lux-meter/id6759503979)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LightMeter Pro Weekly | $2.99 | per 7 days |
| LightMeter Pro Monthly | $5.99 | per month |
| LightMeter Pro Yearly | $24.99 | per year |


## Frequently asked questions

### Is Opt Widon Power free?

Opt Widon Power is free to download, with no in-app purchases.

### Is LightMeter Pro free?

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

### Do Opt Widon Power or LightMeter Pro have ads?

Neither Opt Widon Power nor LightMeter Pro 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.*