# Split Notes vs Duo

The clearest difference is ads: Duo at none against Split Notes's shown. Duo also leads on update cadence (every 2 days vs every 4 months). Split Notes's advantage is iOS requirement (16.0 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Split Notes sells 1 one-off in-app purchase and Duo sells 2 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Split Notes ships an update every 4 months, Duo every 2 days. The most recent releases landed on September 28, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Split Notes | Duo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (11 ratings)](https://appshunter.io/ios/app/split-notes/id1197340064/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 4 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [KAZUTERU YOKOI](https://appshunter.io/developer/605271729) | [Mikalai Kuts](https://appshunter.io/developer/1757613729) |

## What reviewers say

### Split Notes

[App page](https://appshunter.io/ios/app/split-notes/id1197340064)

A versatile text editor that allows for split-screen viewing in both vertical and horizontal orientations, along with tabbed interfaces. It offers automatic saving, folder management, and advanced search capabilities. Users can also synchronize scrolling between panes and export notes to CSV.

**Highlights:** Split-screen editing (vertical/horizontal), Tabbed interface, Synchronized scrolling, Automatic saving, Folder management, Character and regex search, Export to CSV

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $1.99 | one-time |


### Duo

[App page](https://appshunter.io/ios/app/duo-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 Split Notes free?

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

### Is Duo free?

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

### Do Split Notes or Duo have ads?

Split Notes shows ads; Duo does not.

### Which is updated more often, Split Notes or Duo?

Split Notes ships an update every 4 months, and Duo every 2 days. Most recently, Split Notes was updated on September 28, 2026 and Duo on September 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.*