# Chargio vs Lux Meter

The clearest difference is in-app purchases: Chargio at none against Lux Meter's 1. Chargio also leads on update cadence (every 2 days vs weekly) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Lux Meter sells 1 one-off in-app purchase. Chargio asks for nothing beyond the download.

Chargio ships an update every 2 days, Lux Meter weekly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Chargio | Lux Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (6 ratings)](https://appshunter.io/ios/app/lux-meter-light-meter/id6790800796/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 days** | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 26 MB | 9 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jelan Lipscomb](https://appshunter.io/developer/1862936063) | [Alper Sumer Guc](https://appshunter.io/developer/1896672915) |

## What reviewers say

### Chargio

[App page](https://appshunter.io/ios/app/chargio/id6766734611)

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

**In-app purchases:** none


### Lux Meter

[App page](https://appshunter.io/ios/app/lux-meter-light-meter/id6790800796)

This tool transforms your iPhone into a professional light meter, measuring illuminance in lux and foot-candles in real-time. It offers exposure calculations, color temperature estimates, and various presets for different use cases, all while working offline and without ads.

**Highlights:** Real-time lux and foot-candle readout, Exposure Value (EV) calculation, Color temperature (CCT) estimate, Spot or average metering, Use-case presets, CSV export of readings, 100% offline functionality

**Features:** macOS Compatibility, Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lux Meter Premium | $2.99 | one-time |


## Frequently asked questions

### Is Chargio free?

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

### Is Lux Meter free?

Lux Meter is free to download, with in-app purchases available.

### Do Chargio or Lux Meter have ads?

Both Chargio and Lux Meter show ads.

### Which is updated more often, Chargio or Lux Meter?

Chargio ships an update every 2 days, and Lux Meter weekly. Most recently, Chargio was updated on October 25, 2026 and Lux Meter 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.*