# Wallpaper Optimizer(WO) vs ilSang Pro

The clearest difference is in-app purchases: Wallpaper Optimizer(WO) at none against ilSang Pro's 1. Wallpaper Optimizer(WO) also leads on iOS requirement (12.3 vs 26.0). ilSang Pro's advantage is review sentiment (87% vs 58%). On price, update cadence, ads and device support there is nothing between them.

Wallpaper Optimizer(WO) costs $2.99 and ilSang Pro $2.99 up front. ilSang Pro sells 1 one-off in-app purchase. Wallpaper Optimizer(WO) asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 21, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Wallpaper Optimizer(WO) | ilSang Pro |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Rating | — | **[4.4 (57 ratings)](https://appshunter.io/ios/app/ilsang-pro/id1400792124/reviews)** |
| Number of ratings | — | **57** |
| Positive reviews | 57.6% of reviews | **86.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 11 MB | 40 MB |
| Requires iOS | **12.3** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [KhunG System](https://appshunter.io/developer/516481496) | [ByungHo Yu](https://appshunter.io/developer/1375431317) |

## What reviewers say

### Wallpaper Optimizer(WO)

[App page](https://appshunter.io/ios/app/wallpaper-optimizerwo/id775517253)

Easily resize and customize photos to perfectly fit your device's wallpaper and widgets. Fix common issues like the parallax effect and create unique backgrounds with various filters and color options.

**Highlights:** Resize photos to fit screen, Fix parallax effect, Add color backgrounds, Transparent widget support, Blur effects, Extract image from video

**Features:** macOS Compatibility

**In-app purchases:** none


### ilSang Pro

[App page](https://appshunter.io/ios/app/ilsang-pro/id1400792124)

Capture stunning photos and videos with advanced manual controls and a variety of filters. Shoot in RAW format, record in different video modes, and edit your images with a comprehensive suite of tools. Perfect for enhancing your daily life memories.

**Highlights:** RAW and ProRAW support, Manual camera controls (Focus, ISO, Shutter, Temp, Tint), Over 30 camera filters, Multiple aspect ratios for photos and videos, Video recording modes (time-lapse, slow-motion), Comprehensive photo editing tools, Date Stamp printing

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 폰트 추가 | $0.99 | one-time |


## Frequently asked questions

### Is Wallpaper Optimizer(WO) free?

Wallpaper Optimizer(WO) costs $2.99, with no in-app purchases.

### Is ilSang Pro free?

ilSang Pro costs $2.99, and also offers in-app purchases.

### Do Wallpaper Optimizer(WO) or ilSang Pro have ads?

Neither Wallpaper Optimizer(WO) nor ilSang Pro shows ads.

### Which is updated more often, Wallpaper Optimizer(WO) or ilSang Pro?

Wallpaper Optimizer(WO) ships an update fortnightly, and ilSang Pro fortnightly. Most recently, Wallpaper Optimizer(WO) was updated on October 21, 2026 and ilSang Pro 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.*