# 背景透過 vs カラライズ・白黒写真カラー化(Colorize)

The clearest difference is rating: 背景透過 at 5.0 against カラライズ・白黒写真カラー化(Colorize)'s 1.0. 背景透過 also leads on in-app purchases (none vs 1) and device support (3 vs 1). カラライズ・白黒写真カラー化(Colorize)'s advantage is update cadence (every 5 days vs every 22 months). On price, ratings volume and ads there is nothing between them.

Both are free to download. カラライズ・白黒写真カラー化(Colorize) sells 1 one-off in-app purchase. 背景透過 asks for nothing beyond the download.

背景透過 holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

背景透過 ships an update every 22 months, カラライズ・白黒写真カラー化(Colorize) every 5 days. The most recent releases landed on November 5, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 背景透過 | カラライズ・白黒写真カラー化(Colorize) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1635741088/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/colorize/id6449988339/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 22 months | **Every 5 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 48 MB | 141 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Rikuto Komatsu](https://appshunter.io/developer/1533655565) | [Tomohiro Ohwada](https://appshunter.io/developer/991660409) |

## What reviewers say

### 背景透過

[App page](https://appshunter.io/ios/app/id1635741088)

Easily remove image backgrounds automatically. All features are free with unlimited use and minimal ads. No login is required to start editing your photos.

**Highlights:** Automatic background removal, Unlimited usage, No login required, Minimal advertisements, Free features

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

**In-app purchases:** none


### カラライズ・白黒写真カラー化(Colorize)

[App page](https://appshunter.io/ios/app/colorize/id6449988339)

Transform black and white photos into color and enhance image quality. This app processes images offline, ensuring your data remains private. While processing may take some time, it eliminates the need for server uploads.

**Highlights:** Colorize black and white photos, Enhance image resolution, Offline processing, Private data handling, High-quality results

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 開発応援 | $1.99 | one-time |


## Frequently asked questions

### Is 背景透過 free?

背景透過 is free to download, with no in-app purchases.

### Is カラライズ・白黒写真カラー化(Colorize) free?

カラライズ・白黒写真カラー化(Colorize) is free to download, with in-app purchases available.

### Which has better reviews, 背景透過 or カラライズ・白黒写真カラー化(Colorize)?

背景透過 is rated higher. 背景透過 averages 5.0 out of 5 from 1 ratings, while カラライズ・白黒写真カラー化(Colorize) averages 1.0 from 1 ratings.

### Do 背景透過 or カラライズ・白黒写真カラー化(Colorize) have ads?

Both 背景透過 and カラライズ・白黒写真カラー化(Colorize) show ads.

### Which is updated more often, 背景透過 or カラライズ・白黒写真カラー化(Colorize)?

背景透過 ships an update every 22 months, and カラライズ・白黒写真カラー化(Colorize) every 5 days. Most recently, 背景透過 was updated on November 5, 2026 and カラライズ・白黒写真カラー化(Colorize) on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*