# PV Doc vs Light Meter Pro

The clearest difference is price: PV Doc at Free against Light Meter Pro's $2.99. PV Doc also leads on update cadence (every 5 days vs every 3 weeks). Light Meter Pro's advantage is in-app purchases (none vs 4). On ads, device support and iOS requirement there is nothing between them.

PV Doc is free to download; Light Meter Pro costs $2.99 up front. PV Doc sells 4 one-off in-app purchases. Light Meter Pro asks for nothing beyond the download.

PV Doc ships an update every 5 days, Light Meter Pro every 3 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PV Doc | Light Meter Pro |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Size | 13 MB | 16 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [铭 陈](https://appshunter.io/developer/1794005085) | [Guangzhou Ciyou Network Technology Co., Ltd.](https://appshunter.io/developer/6776298572) |

## What reviewers say

### PV Doc

[App page](https://appshunter.io/ios/app/pv-doc/id6746977234)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10个泡泡 | $0.99 | one-time |
| 70个泡泡 | $6.99 | one-time |
| 150个泡泡 | $14.99 | one-time |
| 1000个泡泡 | $69.99 | one-time |


### Light Meter Pro

[App page](https://appshunter.io/ios/app/light-meter-pro-lux-measure/id6777116706)

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

**In-app purchases:** none


## Frequently asked questions

### Is PV Doc free?

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

### Is Light Meter Pro free?

Light Meter Pro costs $2.99, with no in-app purchases.

### Do PV Doc or Light Meter Pro have ads?

Neither PV Doc nor Light Meter Pro shows ads.

### Which is updated more often, PV Doc or Light Meter Pro?

PV Doc ships an update every 5 days, and Light Meter Pro every 3 weeks. Most recently, PV Doc was updated on October 28, 2026 and Light Meter Pro on October 31, 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.*