# Multi Browser vs Duo

The clearest difference is in-app purchases: Multi Browser at none against Duo's 2. Multi Browser also leads on device support (3 vs 1) and iOS requirement (15.6 vs 18.0). Duo's advantage is ads (none vs shown) and update cadence (every 2 days vs every 5 days). On price there is nothing between them.

Both are free to download. Duo sells 2 in-app purchases, starting at $6.99 per 7 days. Multi Browser asks for nothing beyond the download.

Multi Browser ships an update every 5 days, Duo every 2 days. The most recent releases landed on September 21, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Multi Browser | Duo |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 42 MB | 4 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Seiya.k](https://appshunter.io/developer/383021944) | [Mikalai Kuts](https://appshunter.io/developer/1757613729) |

## What reviewers say

### Multi Browser

[App page](https://appshunter.io/ios/app/multi-browser-4-split-screen/id6778413454)

Browse up to four websites simultaneously on a single screen, eliminating the need to constantly switch tabs. This app is ideal for comparing products, multitasking between content, or monitoring live information without interruption.

**Highlights:** Display up to 4 websites at once, Resizable panes for custom layouts, Auto-reload timer for live content, Full-screen mode with address bar, Find in page functionality, Bookmarks and session restore, Tab presets

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

**In-app purchases:** none


### 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 Multi Browser free?

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

### Is Duo free?

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

### Do Multi Browser or Duo have ads?

Multi Browser shows ads; Duo does not.

### Which is updated more often, Multi Browser or Duo?

Multi Browser ships an update every 5 days, and Duo every 2 days. Most recently, Multi Browser was updated on September 21, 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.*