# YUI Smart vs ShelfNote

The clearest difference is in-app purchases: YUI Smart at none against ShelfNote's 1. YUI Smart also leads on iOS requirement (12.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ShelfNote sells 1 one-off in-app purchase. YUI Smart asks for nothing beyond the download.

YUI Smart ships an update every 5 weeks, ShelfNote every 2 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | YUI Smart | ShelfNote |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Size | 39 MB | 94 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ihsan Zeydan](https://appshunter.io/developer/1643853059) | [MUSTAFA CAN ERDEM](https://appshunter.io/developer/6784593566) |

## What reviewers say

### YUI Smart

[App page](https://appshunter.io/ios/app/yui-smart/id6444307788)

**Features:** macOS Compatibility

**In-app purchases:** none


### ShelfNote

[App page](https://appshunter.io/ios/app/shelfnote-personal-shelves/id6792759349)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ShelfNote Style Pack | $0.99 | one-time |


## Frequently asked questions

### Is YUI Smart free?

YUI Smart is free to download, with no in-app purchases.

### Is ShelfNote free?

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

### Do YUI Smart or ShelfNote have ads?

Neither YUI Smart nor ShelfNote shows ads.

### Which is updated more often, YUI Smart or ShelfNote?

YUI Smart ships an update every 5 weeks, and ShelfNote every 2 months. Most recently, YUI Smart was updated on October 27, 2026 and ShelfNote on October 24, 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.*