# IR&D Operator vs Light Meter

The clearest difference is iOS requirement: IR&D Operator at 10.0 against Light Meter's 16.0. On price and in-app purchases there is nothing between them.

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

## The numbers

| Metric | IR&D Operator | Light Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/light-meter-tsingland/id6479873859/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 2 months |
| Monetization | — | Free |
| Size | 77 MB | 1 MB |
| Requires iOS | **10.0** | 16.0 |
| Devices | — | **iPhone** |
| Age rating | 4+ | 4+ |
| Developer | [Infrared Research & Development SPRL](https://appshunter.io/developer/1147556036) | [景天 吕](https://appshunter.io/developer/1724677108) |

## What reviewers say

### IR&D Operator

[App page](https://appshunter.io/ios/app/ir-and-d-operator/id1147556037)

**In-app purchases:** none


### Light Meter

[App page](https://appshunter.io/ios/app/light-meter-tsingland/id6479873859)

This neumorphism-style light meter offers aperture priority, shutter priority, and manual modes. It allows users to adjust shutter speed, aperture, and ISO sensitivity for precise photography.

**Highlights:** Aperture Priority Mode (A), Shutter Priority Mode (S), Manual Mode, Adjustable Shutter Speed, Adjustable Aperture, Adjustable ISO Sensitivity

**In-app purchases:** none


## Frequently asked questions

### Is IR&D Operator free?

IR&D Operator is free to download, with no in-app purchases.

### Is Light Meter free?

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

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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.*