# CastDuo vs Multicast

The clearest difference is in-app purchases: Multicast at none against CastDuo's 15. Multicast also leads on rating (4.5 vs 4.0) and device support (3 vs 1). CastDuo's advantage is update cadence (every 8 days vs every 4 months) and ratings volume (102 vs 2). On price and ads there is nothing between them.

Both are free to download. CastDuo sells 15 in-app purchases, starting at $2.49 per 7 days. Multicast asks for nothing beyond the download.

Multicast holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: CastDuo has 102 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 20% of CastDuo's written reviews are positive against 0% of Multicast's, so the app with the better star average is not the one people write more warmly about.

CastDuo ships an update every 8 days, Multicast every 4 months. The most recent releases landed on October 27, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | CastDuo | Multicast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (102 ratings)](https://appshunter.io/ios/app/castduo-screen-mirroring-app/id6593663296/reviews) | **[4.5 (2 ratings)](https://appshunter.io/ios/app/multicast-screen-mirroring/id6755520191/reviews)** |
| Number of ratings | **102** | 2 |
| Positive reviews | **20.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 8 days** | Every 4 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 66 MB | 49 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ECO MOBILE JOINT STOCK COMPANY](https://appshunter.io/developer/1609177811) | [正福 邹](https://appshunter.io/developer/1752550912) |

## What reviewers say

### CastDuo

[App page](https://appshunter.io/ios/app/castduo-screen-mirroring-app/id6593663296)

Transform your phone into a big-screen experience by wirelessly casting photos, videos, and web content to your smart TV. Enjoy seamless, lag-free mirroring for entertainment, presentations, or gaming.

**Highlights:** Seamless photo, video, and music casting, Zero-delay screen mirroring, Direct web video streaming, Effortless smart TV connectivity, Lag-free performance, High-definition playback

**Features:** macOS Compatibility

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Smart Cast Subscription | $2.49 | per 7 days |
| Weekly Mirroring Discount | $3.49 | per 7 days |
| Weekly Mirroring Subscription | $4.99 | per 7 days |
| Weekly Mirroring Subscription | $4.99 | per 7 days |
| Weekly Smart Cast Subscription | $5.99 | per 7 days |
| Weekly Mirroring Subscription | $6.99 | per 7 days |
| Yearly Mirroring Subscription | $12.49 | per year |
| Monhtly SmartCast Subscription | $12.99 | per month |
| Yearly Subscription Discount | $19.99 | per year |
| Yearly Mirroring Subscription | $29.99 | per year |
| Yearly Subscription | $49.99 | per year |
| Yearly Subscription | $59.99 | per year |
| Lifetime Smart Cast | $18.99 | one-time |
| Onetime payment special offer | $29.99 | one-time |
| Lifetime Smart Cast | $34.99 | one-time |


### Multicast

[App page](https://appshunter.io/ios/app/multicast-screen-mirroring/id6755520191)

This app enables simultaneous casting of multiple photos or videos to your TV, offering split-screen and grid layouts for enhanced viewing. It supports various casting modes and protocols for seamless integration with most smart TVs, ideal for education, collaboration, and home entertainment.

**Highlights:** Split-screen casting, Cast multiple photos/videos simultaneously, Side-by-side or grid layouts, One-to-one and one-to-many casting, Optimized for no delay, Supports AirPlay and DLNA

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

**In-app purchases:** none


## Frequently asked questions

### Is CastDuo free?

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

### Is Multicast free?

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

### Which has better reviews, CastDuo or Multicast?

Multicast is rated higher. CastDuo averages 4.0 out of 5 from 102 ratings, while Multicast averages 4.5 from 2 ratings.

### Do CastDuo or Multicast have ads?

Both CastDuo and Multicast show ads.

### Which is updated more often, CastDuo or Multicast?

CastDuo ships an update every 8 days, and Multicast every 4 months. Most recently, CastDuo was updated on October 27, 2026 and Multicast on October 5, 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.*