# Lux Meter Pros vs RockCONNECT IoT

The clearest difference is in-app purchases: RockCONNECT IoT at none against Lux Meter Pros's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Lux Meter Pros sells 3 in-app purchases, starting at $0.99 per 7 days. RockCONNECT IoT asks for nothing beyond the download.

Lux Meter Pros ships an update every 4 months, RockCONNECT IoT every 2 months. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Lux Meter Pros | RockCONNECT IoT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lux-meter-pros/id6740999944/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 25 MB | 2 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DADLINK TECHNOLOGIES LIMITED](https://appshunter.io/developer/1736032380) | [Ground Control Technologies UK Ltd](https://appshunter.io/developer/1774186724) |

## What reviewers say

### Lux Meter Pros

[App page](https://appshunter.io/ios/app/lux-meter-pros/id6740999944)

This tool transforms your iPhone into a professional light testing device. It measures lux levels, conducts emergency lighting discharge tests, and generates compliance certificates for UK electricians and facility managers.

**Highlights:** Real-time lux measurement, Photo-based light readings, Room grid mapping, Emergency light testing (BS 5266), Certificate generation (PDF), Exportable reports (PDF/CSV), Historical tracking

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Lux Pass | $0.99 | per 7 days |
| Monthly Lux Pass | $2.99 | per month |
| Annual Lux Pass | $24.99 | per year |


### RockCONNECT IoT

[App page](https://appshunter.io/ios/app/rockconnect-iot/id6749900371)

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

**In-app purchases:** none


## Frequently asked questions

### Is Lux Meter Pros free?

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

### Is RockCONNECT IoT free?

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

### Do Lux Meter Pros or RockCONNECT IoT have ads?

Neither Lux Meter Pros nor RockCONNECT IoT shows ads.

### Which is updated more often, Lux Meter Pros or RockCONNECT IoT?

Lux Meter Pros ships an update every 4 months, and RockCONNECT IoT every 2 months. Most recently, Lux Meter Pros was updated on October 28, 2026 and RockCONNECT IoT on October 24, 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.*