# Screen Mirroring | Air Cast vs Authenticator App

The clearest difference is ads: Screen Mirroring | Air Cast at none against Authenticator App's shown. Screen Mirroring | Air Cast also leads on ratings volume (170 vs 15) and update cadence (every 2 days vs every 4 days). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. Screen Mirroring | Air Cast sells 2 in-app purchases, starting at $6.99 per 7 days and Authenticator App sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for Screen Mirroring | Air Cast against 4.6 for Authenticator App. That said, the two scores are not equally well evidenced: Screen Mirroring | Air Cast has 170 ratings behind it against 15, so its average is the more settled of the two.

Screen Mirroring | Air Cast ships an update every 2 days, Authenticator App every 4 days. The most recent releases landed on October 21, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Screen Mirroring | Air Cast | Authenticator App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (170 ratings)](https://appshunter.io/ios/app/screen-mirroring-air-cast/id6457363321/reviews) | **[4.6 (15 ratings)](https://appshunter.io/ios/app/authenticator-app-duoshield/id6467132147/reviews)** |
| Number of ratings | **170** | 15 |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 4 days |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 13 MB | 25 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Denice Haley](https://appshunter.io/developer/1716339469) | [Stas Miroshko](https://appshunter.io/developer/1705754274) |

## What reviewers say

### Screen Mirroring | Air Cast

[App page](https://appshunter.io/ios/app/screen-mirroring-air-cast/id6457363321)

Instantly cast your phone's screen to any smart TV on the same Wi-Fi network. Share photos, videos, and presentations, or even view IPTV and stream content from YouTube. It works with all TV models and requires no extra equipment.

**Highlights:** Cast mobile device screen to TV, Share photos, videos, and data, Conduct presentations and training, Broadcast live lessons and meetings, View IPTV and stream YouTube, Compatible with all TV models

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Screen Mirroring (weekly) | $6.99 | per 7 days |
| Screen Mirroring (monthly) | $19.99 | per month |


### Authenticator App

[App page](https://appshunter.io/ios/app/authenticator-app-duoshield/id6467132147)

Secure your online accounts with this comprehensive two-factor authentication tool. It offers features like account organization, customizable icons, secure backups, and Face ID protection. Unlock advanced features like QR code scanning and manual 2FA entry with premium subscriptions.

**Highlights:** Account creation and storage, Customizable account folders, Personalized account icons, Secure data export, Light/dark theme UI settings, Face ID app lock, Cross-device sync and backup

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Duo Step Mobile Authentication | $6.99 | per 7 days |
| 2FA-MFA OTP-TOTP Authenticator | $39.99 | per year |
| Annual purchase premium access | $49.99 | one-time |


## Frequently asked questions

### Is Screen Mirroring | Air Cast free?

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

### Is Authenticator App free?

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

### Which has better reviews, Screen Mirroring | Air Cast or Authenticator App?

Authenticator App is rated higher. Screen Mirroring | Air Cast averages 4.5 out of 5 from 170 ratings, while Authenticator App averages 4.6 from 15 ratings.

### Do Screen Mirroring | Air Cast or Authenticator App have ads?

Authenticator App shows ads; Screen Mirroring | Air Cast does not.

### Which is updated more often, Screen Mirroring | Air Cast or Authenticator App?

Screen Mirroring | Air Cast ships an update every 2 days, and Authenticator App every 4 days. Most recently, Screen Mirroring | Air Cast was updated on October 21, 2026 and Authenticator App on September 29, 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.*