# RSI Alerta vs Screen Mirroring Cast

The clearest difference is in-app purchases: RSI Alerta at none against Screen Mirroring Cast's 1. RSI Alerta also leads on update cadence (every 11 months vs every 25 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Screen Mirroring Cast sells 1 one-off in-app purchase. RSI Alerta asks for nothing beyond the download.

RSI Alerta ships an update every 11 months, Screen Mirroring Cast every 25 months. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | RSI Alerta | Screen Mirroring Cast |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 11 months** | Every 25 months |
| Size | 67 MB | 31 MB |
| Requires iOS | **15** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SoftGuard Technologies LLC](https://appshunter.io/developer/1646125906) | [Laxay Gajera](https://appshunter.io/developer/1534406445) |

## What reviewers say

### RSI Alerta

[App page](https://appshunter.io/ios/app/rsi-alerta/id1458783147)

**In-app purchases:** none


### Screen Mirroring Cast

[App page](https://appshunter.io/ios/app/screen-mirroring-cast/id1547739869)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ScreenMirroringCast-Remove Ads | $3.99 | one-time |


## Frequently asked questions

### Is RSI Alerta free?

RSI Alerta is free to download, with no in-app purchases.

### Is Screen Mirroring Cast free?

Screen Mirroring Cast is free to download, with in-app purchases available.

### Do RSI Alerta or Screen Mirroring Cast have ads?

Neither RSI Alerta nor Screen Mirroring Cast shows ads.

### Which is updated more often, RSI Alerta or Screen Mirroring Cast?

RSI Alerta ships an update every 11 months, and Screen Mirroring Cast every 25 months. Most recently, RSI Alerta was updated on October 26, 2026 and Screen Mirroring Cast on November 3, 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.*