# Smart Unit Conversion vs Cartoon

The clearest difference is ads: Cartoon at none against Smart Unit Conversion's shown. Cartoon also leads on update cadence (every 3 days vs every 15 months). Smart Unit Conversion's advantage is iOS requirement (13.4 vs 15.5). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Smart Unit Conversion sells 1 in-app purchase, starting at $1.99 per year and Cartoon sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Smart Unit Conversion ships an update every 15 months, Cartoon every 3 days. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Smart Unit Conversion | Cartoon |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 15 months | **Every 3 days** |
| Size | 41 MB | 85 MB |
| Requires iOS | **13.4** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Yui Lau](https://appshunter.io/developer/1791465155) | [fookstar](https://appshunter.io/developer/1846097578) |

## What reviewers say

### Smart Unit Conversion

[App page](https://appshunter.io/ios/app/smart-unit-conversion/id1643381985)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Year | $1.99 | per year |


### Cartoon

[App page](https://appshunter.io/ios/app/cartoon-ai-characteranime/id6755099264)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cartoon Weekly Subscription | $0.99 | per 7 days |
| PhotoRestore Monthly Subscription | $1.99 | per month |
| PhotoRestore Yearly Subscription | $9.99 | per year |


## Frequently asked questions

### Is Smart Unit Conversion free?

Smart Unit Conversion is free to download, with in-app purchases available.

### Is Cartoon free?

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

### Do Smart Unit Conversion or Cartoon have ads?

Smart Unit Conversion shows ads; Cartoon does not.

### Which is updated more often, Smart Unit Conversion or Cartoon?

Smart Unit Conversion ships an update every 15 months, and Cartoon every 3 days. Most recently, Smart Unit Conversion was updated on November 7, 2026 and Cartoon on October 30, 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.*