# QUAPIX Lite vs TouchJW v2

The clearest difference is in-app purchases: QUAPIX Lite at none against TouchJW v2's 4. QUAPIX Lite also leads on review sentiment (36% vs 28%) and iOS requirement (12.0 vs 15.6). TouchJW v2's advantage is ads (none vs shown) and update cadence (every 5 weeks vs every 5 months). On price, monetization model and device support there is nothing between them.

Both are free to download. TouchJW v2 sells 4 in-app purchases, starting at $12.99 per 2 months. QUAPIX Lite asks for nothing beyond the download.

QUAPIX Lite ships an update every 5 months, TouchJW v2 every 5 weeks. The most recent releases landed on October 8, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | QUAPIX Lite | TouchJW v2 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **36.4% of reviews** | 27.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 32 MB | 29 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [岩崎電気](https://appshunter.io/developer/905894718) | [Hideyuki Miyanishi](https://appshunter.io/developer/717594962) |

## 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


### TouchJW v2

[App page](https://appshunter.io/ios/app/touchjw-v2/id996794955)

View and edit CAD data files on your iPhone or iPad. Measure distances, calculate areas, and add annotations like shapes and photos. Export to PDF and print via AirPrint.

**Highlights:** View JW_CAD/Jw_win data files, Measure distances and calculate areas, Edit annotation data, Add photos and freehand lines, Export annotations to PDF, Print via AirPrint, Import files via iTunes, cloud apps, or email

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 制限解除その１ | $12.99 | per 2 months |
| 制限解除その２ | $16.99 | per 6 months |
| TouchJWv2.12MonthUnlock | $34.99 | per year |
| ファイルサイズ制限解除 | $99.99 | one-time |


## Frequently asked questions

### Is QUAPIX Lite free?

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

### Is TouchJW v2 free?

TouchJW v2 is free to download, with in-app purchases available.

### Do QUAPIX Lite or TouchJW v2 have ads?

QUAPIX Lite shows ads; TouchJW v2 does not.

### Which is updated more often, QUAPIX Lite or TouchJW v2?

QUAPIX Lite ships an update every 5 months, and TouchJW v2 every 5 weeks. Most recently, QUAPIX Lite was updated on October 8, 2026 and TouchJW v2 on October 21, 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.*