# Side Notes vs TwoUp Split Screen Dual Window

The clearest difference is in-app purchases: Side Notes at none against TwoUp Split Screen Dual Window's 2. Side Notes also leads on device support (3 vs 1). TwoUp Split Screen Dual Window's advantage is update cadence (weekly vs every 2 months). On price, ads and iOS requirement there is nothing between them.

Both are free to download. TwoUp Split Screen Dual Window sells 2 in-app purchases, starting at $6.99 per 7 days. Side Notes asks for nothing beyond the download.

Side Notes ships an update every 2 months, TwoUp Split Screen Dual Window weekly. The most recent releases landed on October 11, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Side Notes | TwoUp Split Screen Dual Window |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (22 ratings)](https://appshunter.io/ios/app/side-notes-pros-and-cons-list/id1555821224/reviews)** | — |
| Number of ratings | **22** | — |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free | — |
| Size | 12 MB | 4 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Straw Technologies](https://appshunter.io/developer/1120982866) | [Mikalai Kuts](https://appshunter.io/developer/1757613729) |

## What reviewers say

### Side Notes

[App page](https://appshunter.io/ios/app/side-notes-pros-and-cons-list/id1555821224)

This app helps you organize thoughts by viewing multiple notes simultaneously. It offers layouts for comparing options, conducting analyses, or structuring complex ideas. Focus on your thinking with a clean, intuitive interface and privacy-focused design.

**Highlights:** Side-by-side note viewing, Multiple layout options (Dual, Four, Single), Visual comparison of ideas, SWOT analysis and Eisenhower Matrix support, Rich text editing, Offline functionality, Export notes as PDF or text

**Features:** Family Sharing, Vision Pro support

**In-app purchases:** none


### TwoUp Split Screen Dual Window

[App page](https://appshunter.io/ios/app/twoup-split-screen-dual-window/id6802056782)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TwoUp Plus Week | $6.99 | per 7 days |
| TwoUP Plus Year | $59.99 | per year |


## Frequently asked questions

### Is Side Notes free?

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

### Is TwoUp Split Screen Dual Window free?

TwoUp Split Screen Dual Window is free to download, with in-app purchases available.

### Do Side Notes or TwoUp Split Screen Dual Window have ads?

Neither Side Notes nor TwoUp Split Screen Dual Window shows ads.

### Which is updated more often, Side Notes or TwoUp Split Screen Dual Window?

Side Notes ships an update every 2 months, and TwoUp Split Screen Dual Window weekly. Most recently, Side Notes was updated on October 11, 2026 and TwoUp Split Screen Dual Window on October 15, 2026.

---

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