# 鏡頭計算  Lens Calculator vs Light Meter + SensorArray

The clearest difference is in-app purchases: 鏡頭計算  Lens Calculator at none against Light Meter + SensorArray's 1. 鏡頭計算  Lens Calculator also leads on ads (none vs shown). Light Meter + SensorArray's advantage is update cadence (every 2 weeks vs monthly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Light Meter + SensorArray sells 1 one-off in-app purchase. 鏡頭計算  Lens Calculator asks for nothing beyond the download.

鏡頭計算  Lens Calculator ships an update monthly, Light Meter + SensorArray every 2 weeks. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | 鏡頭計算  Lens Calculator | Light Meter + SensorArray |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (4 ratings)](https://appshunter.io/ios/app/light-meter-plus-sensorarray/id6754421088/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 5 MB | 19 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [Lee Shi-Yeang](https://appshunter.io/developer/1110256487) | [Dynamic Star Pty Ltd](https://appshunter.io/developer/1847769282) |

## What reviewers say

### 鏡頭計算  Lens Calculator

[App page](https://appshunter.io/ios/app/lens-calculator/id1110256488)

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

**In-app purchases:** none


### Light Meter + SensorArray

[App page](https://appshunter.io/ios/app/light-meter-plus-sensorarray/id6754421088)

This app provides hardware-validated light metering for analog film, digital cinema, and audio. It offers features like spot metering, reciprocity compensation for long exposures, and ambient color balance estimation. It's designed for professionals and works offline with a privacy-first approach.

**Highlights:** Hardware-linked spot metering, Reciprocity compensation for long exposures, Ambient color balance estimation, Calibrated sound pressure level monitoring, NOAA solar tracking, Digital film log, Focus stacking assistant

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Access all Pro-tools & calculators | $4.99 | one-time |


## Frequently asked questions

### Is 鏡頭計算  Lens Calculator free?

鏡頭計算  Lens Calculator is free to download, with no in-app purchases.

### Is Light Meter + SensorArray free?

Light Meter + SensorArray is free to download, with in-app purchases available.

### Do 鏡頭計算  Lens Calculator or Light Meter + SensorArray have ads?

Light Meter + SensorArray shows ads; 鏡頭計算  Lens Calculator does not.

### Which is updated more often, 鏡頭計算  Lens Calculator or Light Meter + SensorArray?

鏡頭計算  Lens Calculator ships an update monthly, and Light Meter + SensorArray every 2 weeks. Most recently, 鏡頭計算  Lens Calculator was updated on October 24, 2026 and Light Meter + SensorArray on October 20, 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.*