# WonderBox vs SideNotes Mobile

The clearest difference is price: WonderBox at Free against SideNotes Mobile's $9.99. WonderBox also leads on iOS requirement (8.4 vs 17). SideNotes Mobile's advantage is update cadence (monthly vs every 2 months). On ads, in-app purchases and device support there is nothing between them.

WonderBox is free to download; SideNotes Mobile costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

WonderBox ships an update every 2 months, SideNotes Mobile monthly. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | WonderBox | SideNotes Mobile |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | — | **[4.2 (29 ratings)](https://appshunter.io/ios/app/sidenotes-mobile/id1607089308/reviews)** |
| Number of ratings | — | **29** |
| Positive reviews | — | 88.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | — | Paid |
| Size | 48 MB | 10 MB |
| Requires iOS | **8.4** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kinghood Technology Co., Ltd.](https://appshunter.io/developer/415226491) | [Apptorium](https://appshunter.io/developer/551772156) |

## What reviewers say

### WonderBox

[App page](https://appshunter.io/ios/app/wonderbox/id583280873)

**Features:** macOS Compatibility

**In-app purchases:** none


### SideNotes Mobile

[App page](https://appshunter.io/ios/app/sidenotes-mobile/id1607089308)

Capture thoughts and to-dos on the go with this mobile note-taking app. It offers iCloud sync, Markdown formatting, and customizable themes for a personalized experience. Easily access notes from other applications.

**Highlights:** iCloud Synchronization, Markdown Formatting, Task Management, Customizable Themes, Note and Folder URLs, Note Colors

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is WonderBox free?

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

### Is SideNotes Mobile free?

SideNotes Mobile costs $9.99, with no in-app purchases.

### Do WonderBox or SideNotes Mobile have ads?

Neither WonderBox nor SideNotes Mobile shows ads.

### Which is updated more often, WonderBox or SideNotes Mobile?

WonderBox ships an update every 2 months, and SideNotes Mobile monthly. Most recently, WonderBox was updated on November 1, 2026 and SideNotes Mobile on November 7, 2026.

---

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