# Wallpaper Optimizer Lite vs Carat

The clearest difference is in-app purchases: Wallpaper Optimizer Lite at none against Carat's 17. Wallpaper Optimizer Lite also leads on iOS requirement (12.3 vs 15.6). Carat's advantage is update cadence (every 3 days vs monthly) and ratings volume (659 vs 9). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Carat sells 16 in-app purchases, starting at $19.99 per month. Wallpaper Optimizer Lite asks for nothing beyond the download.

Carat holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Carat has 659 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 80% of Wallpaper Optimizer Lite's written reviews are positive against 84% of Carat's.

Wallpaper Optimizer Lite ships an update monthly, Carat every 3 days. The most recent releases landed on October 14, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Wallpaper Optimizer Lite | Carat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (9 ratings)](https://appshunter.io/ios/app/wallpaper-optimizer-lite/id716442125/reviews) | **[4.8 (659 ratings)](https://appshunter.io/ios/app/carat-create-anything/id1600191019/reviews)** |
| Number of ratings | 9 | **659** |
| Positive reviews | 79.7% of reviews | **84.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 15 MB | 286 MB |
| Requires iOS | **12.3** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [KhunG System](https://appshunter.io/developer/516481496) | [Paradot Corp.](https://appshunter.io/developer/1600191021) |

## What reviewers say

### Wallpaper Optimizer Lite

[App page](https://appshunter.io/ios/app/wallpaper-optimizer-lite/id716442125)

Easily resize, move, and rotate photos to perfectly fit your device's screen as wallpaper. Fix common issues like the parallax effect and create custom backgrounds with various filters and effects.

**Highlights:** Resize, move, and rotate images, Fix parallax effect, Apply blur effects, Extract images from videos, Create transparent widgets, Add background color palettes

**Features:** macOS Compatibility

**In-app purchases:** none


### Carat

[App page](https://appshunter.io/ios/app/carat-create-anything/id1600191019)

This AI-powered app lets you create images and videos simply by chatting with your agent. It handles complex prompts and model selection, making advanced content generation accessible to everyone. Remix, edit, and share your creations with ease.

**Highlights:** AI image generation from text or sketches, AI video generation from images or text, Lip-sync and music video creation, Advanced editing and iteration, Access to multiple AI models, Remix and share content

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

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Carat Starter | $19.99 | per month |
| Carat Premium | $40.00 | per month |
| 100 Point Lens | $0.99 | one-time |
| 150P | $0.99 | one-time |
| 200 Point Lens | $1.49 | one-time |
| 300P | $2.49 | one-time |
| 300 Point Lens | $2.99 | one-time |
| 440P + Bonus Points | $3.49 | one-time |
| 500P | $3.99 | one-time |
| 600P | $4.99 | one-time |
| 1400P | $12.99 | one-time |
| Usage Plus | $22.99 | one-time |
| 3700P | $29.99 | one-time |
| Usage Boost | $44.99 | one-time |
| 7900P | $59.99 | one-time |
| 11900P | $99.99 | one-time |

**What reviewers like**

- ✨ High-quality AI photo generation
- 👍 User-friendly interface and navigation
- 🎨 Diverse and well-made AI templates
- 🤖 Multiple AI engines for better results
- ⚡ Fast and efficient processing

**What reviewers complain about**

- 🎨 Skin tone lightening in generated images
- ⏱️ Long processing times for image generation
- 💰 Point system limits messaging frequency
- 🔄 Recent UI changes confusing to users
- 🌍 Feature availability varies by region

**Reported bugs**

- Image generation fails after processing
- Filters no longer functional
- AI Character Chats unavailable outside Korea
- Non-English text in interface
- Pre-created AI options difficult to locate after recent changes

**Requested features**

- Direct save to iPhone photo library
- Reduced or eliminated point requirements for messaging
- Restore original pre-made AI photo options
- Restore filter functionality
- Restore AI Character Chat feature globally


## Frequently asked questions

### Is Wallpaper Optimizer Lite free?

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

### Is Carat free?

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

### Which has better reviews, Wallpaper Optimizer Lite or Carat?

Carat is rated higher. Wallpaper Optimizer Lite averages 4.6 out of 5 from 9 ratings, while Carat averages 4.8 from 659 ratings.

### Do Wallpaper Optimizer Lite or Carat have ads?

Both Wallpaper Optimizer Lite and Carat show ads.

### Which is updated more often, Wallpaper Optimizer Lite or Carat?

Wallpaper Optimizer Lite ships an update monthly, and Carat every 3 days. Most recently, Wallpaper Optimizer Lite was updated on October 14, 2026 and Carat 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.*