# Dual Screen Sync vs ScreenStash

The clearest difference is in-app purchases: Dual Screen Sync at none against ScreenStash's 2. Dual Screen Sync also leads on iOS requirement (16.0 vs 18.0). ScreenStash's advantage is update cadence (every 4 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. ScreenStash sells 2 in-app purchases, starting at $2.99 per month. Dual Screen Sync asks for nothing beyond the download.

Dual Screen Sync ships an update every 3 weeks, ScreenStash every 4 days. The most recent releases landed on September 10, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Dual Screen Sync | ScreenStash |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Size | 1 MB | 9 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Insik Shin](https://appshunter.io/developer/1740272742) | [Matthew Smith](https://appshunter.io/developer/6791765004) |

## What reviewers say

### Dual Screen Sync

[App page](https://appshunter.io/ios/app/dual-screen-sync/id6737029339)

**In-app purchases:** none


### ScreenStash

[App page](https://appshunter.io/ios/app/screenstash-screenshot-boards/id6800049598)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ScreenStash Pro | $2.99 | per month |
| ScreenStash Pro Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Dual Screen Sync free?

Dual Screen Sync is free to download, with no in-app purchases.

### Is ScreenStash free?

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

### Do Dual Screen Sync or ScreenStash have ads?

Neither Dual Screen Sync nor ScreenStash shows ads.

### Which is updated more often, Dual Screen Sync or ScreenStash?

Dual Screen Sync ships an update every 3 weeks, and ScreenStash every 4 days. Most recently, Dual Screen Sync was updated on September 10, 2026 and ScreenStash on September 20, 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.*