# App for Light meter controller vs MobAlerm

The clearest difference is price: App for Light meter controller at Free against MobAlerm's $0.49. MobAlerm's advantage is in-app purchases (none vs 5) and ads (none vs shown). On device support there is nothing between them.

App for Light meter controller is free to download; MobAlerm costs $0.49 up front. App for Light meter controller sells 5 in-app purchases, starting at $5.99 per year. MobAlerm asks for nothing beyond the download.

App for Light meter controller ships an update every 7 months, MobAlerm every 10 days. The most recent releases landed on October 13, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | App for Light meter controller | MobAlerm |
| --- | --- | --- |
| Price | **Free** | $0.49 |
| Rating | **[5.0 (18 ratings)](https://appshunter.io/ios/app/app-for-light-meter-controller/id6670164188/reviews)** | — |
| Number of ratings | **18** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 116 MB | 1 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Irina Metelkina](https://appshunter.io/developer/1616464605) | [Kengo Tate](https://appshunter.io/developer/1458012620) |

## What reviewers say

### App for Light meter controller

[App page](https://appshunter.io/ios/app/app-for-light-meter-controller/id6670164188)

Transform your smartphone into a professional light meter. Measure illumination in LUX and FC, and check color temperature in kelvins. Ideal for photographers, designers, and anyone needing precise light data.

**Highlights:** Measure LUX and FC, Check color temperature in kelvins, Supports various light types (LED, sunlight, UV), Intuitive interface with graphs, Save and export light readings, Professional-grade accuracy

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly subscription | $5.99 | per year |
| Monthly subscription | $12.99 | per month |
| Yearly subscription | $14.99 | per year |
| Yearly subscription | $19.99 | per year |
| Yearly subscription | $34.99 | per year |


### MobAlerm

[App page](https://appshunter.io/ios/app/mobalerm/id6737408995)

**In-app purchases:** none


## Frequently asked questions

### Is App for Light meter controller free?

App for Light meter controller is free to download, with in-app purchases available.

### Is MobAlerm free?

MobAlerm costs $0.49, with no in-app purchases.

### Do App for Light meter controller or MobAlerm have ads?

App for Light meter controller shows ads; MobAlerm does not.

### Which is updated more often, App for Light meter controller or MobAlerm?

App for Light meter controller ships an update every 7 months, and MobAlerm every 10 days. Most recently, App for Light meter controller was updated on October 13, 2026 and MobAlerm on September 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.*