# Lux vs NMRE eMeter

The clearest difference is update cadence: Lux at every 3 days against NMRE eMeter's every 3 weeks. Lux also leads on iOS requirement (9.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Lux ships an update every 3 days, NMRE eMeter every 3 weeks. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Lux | NMRE eMeter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Size | 3 MB | 20 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Jumaoyuan Science and Technology Co., Ltd.](https://appshunter.io/developer/1327619798) | [AXRA TECHNOLOGY COMPANY LIMITED](https://appshunter.io/developer/1615431045) |

## What reviewers say

### Lux

[App page](https://appshunter.io/ios/app/lux-meter/id1526427841)

**Features:** macOS Compatibility

**In-app purchases:** none


### NMRE eMeter

[App page](https://appshunter.io/ios/app/nmre-emeter/id6740324526)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lux free?

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

### Is NMRE eMeter free?

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

### Do Lux or NMRE eMeter have ads?

Neither Lux nor NMRE eMeter shows ads.

### Which is updated more often, Lux or NMRE eMeter?

Lux ships an update every 3 days, and NMRE eMeter every 3 weeks. Most recently, Lux was updated on October 27, 2026 and NMRE eMeter 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.*