# FileDuel vs Duo

The clearest difference is update cadence: Duo at every 2 days against FileDuel's every 2 months. FileDuel's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. FileDuel sells 2 in-app purchases, starting at $2.99 per month 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.

FileDuel ships an update every 2 months, Duo every 2 days. The most recent releases landed on September 20, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | FileDuel | Duo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Size | 64 MB | 4 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [ValueSpring LLC](https://appshunter.io/developer/1895893729) | [Mikalai Kuts](https://appshunter.io/developer/1757613729) |

## What reviewers say

### FileDuel

[App page](https://appshunter.io/ios/app/fileduel/id6766763429)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FileDuel Pro Monthly | $2.99 | per month |
| Fileduel pro yearly | $24.99 | per year |


### 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 FileDuel free?

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

### Is Duo free?

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

### Do FileDuel or Duo have ads?

Neither FileDuel nor Duo shows ads.

### Which is updated more often, FileDuel or Duo?

FileDuel ships an update every 2 months, and Duo every 2 days. Most recently, FileDuel was updated on September 20, 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.*