# Light Meter vs HDR Transformer

The clearest difference is price: Light Meter at Free against HDR Transformer's $9.99. Light Meter also leads on iOS requirement (16.0 vs 18.0). HDR Transformer's advantage is update cadence (every 9 days vs every 2 months). On ads, in-app purchases and device support there is nothing between them.

Light Meter is free to download; HDR Transformer costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Light Meter ships an update every 2 months, HDR Transformer every 9 days. The most recent releases landed on November 4, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Light Meter | HDR Transformer |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| 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 | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Free | — |
| Size | 1 MB | 61 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [景天 吕](https://appshunter.io/developer/1724677108) | [栋 张](https://appshunter.io/developer/1859653493) |

## What reviewers say

### 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


### HDR Transformer

[App page](https://appshunter.io/ios/app/hdr-transformer/id6760416369)

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

**In-app purchases:** none


## Frequently asked questions

### Is Light Meter free?

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

### Is HDR Transformer free?

HDR Transformer costs $9.99, with no in-app purchases.

### Do Light Meter or HDR Transformer have ads?

Neither Light Meter nor HDR Transformer shows ads.

### Which is updated more often, Light Meter or HDR Transformer?

Light Meter ships an update every 2 months, and HDR Transformer every 9 days. Most recently, Light Meter was updated on November 4, 2026 and HDR Transformer on November 9, 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.*