# QUAPIX Lite vs 光量ノート

The clearest difference is in-app purchases: QUAPIX Lite at none against 光量ノート's 1. QUAPIX Lite also leads on device support (3 vs 1) and iOS requirement (12.0 vs 18.0). 光量ノート's advantage is ads (none vs shown) and update cadence (every 2 months vs every 5 months). On price there is nothing between them.

Both are free to download. 光量ノート sells 1 one-off in-app purchase. QUAPIX Lite asks for nothing beyond the download.

QUAPIX Lite ships an update every 5 months, 光量ノート every 2 months. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | QUAPIX Lite | 光量ノート |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 36.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 32 MB | 2 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [岩崎電気](https://appshunter.io/developer/905894718) | [Shuhei Yamamoto](https://appshunter.io/developer/1896725589) |

## What reviewers say

### QUAPIX Lite

[App page](https://appshunter.io/ios/app/quapix-lite/id905894715)

This tool helps you easily assess the brightness of your current environment. It utilizes advanced photometric and image processing technology to evaluate luminance and illuminance, providing color-analyzed images and comparative judgments against recommended levels.

**Highlights:** Analyze images to create luminance maps, Compare current brightness to recommended levels, View latest information from Iwasaki Electric, Discover nearby installation examples

**Features:** macOS Compatibility

**In-app purchases:** none


### 光量ノート

[App page](https://appshunter.io/ios/app/ppfd/id6799558549)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 光量ノート Pro | $4.99 | one-time |


## Frequently asked questions

### Is QUAPIX Lite free?

QUAPIX Lite is free to download, with no in-app purchases.

### Is 光量ノート free?

光量ノート is free to download, with in-app purchases available.

### Do QUAPIX Lite or 光量ノート have ads?

QUAPIX Lite shows ads; 光量ノート does not.

### Which is updated more often, QUAPIX Lite or 光量ノート?

QUAPIX Lite ships an update every 5 months, and 光量ノート every 2 months. Most recently, QUAPIX Lite was updated on October 8, 2026 and 光量ノート on October 15, 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.*