# FastCast. vs SlangDecoder

The clearest difference is price: FastCast. at Free against SlangDecoder's $2.99. FastCast. also leads on iOS requirement (12.0 vs 17.0). SlangDecoder's advantage is in-app purchases (none vs 3) and ads (none vs shown). On update cadence and device support there is nothing between them.

FastCast. is free to download; SlangDecoder costs $2.99 up front. FastCast. sells 3 in-app purchases, starting at $0.99 per 7 days. SlangDecoder asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 11, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | FastCast. | SlangDecoder |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[3.8 (282 ratings)](https://appshunter.io/ios/app/fastcast/id1116898425/reviews)** | — |
| Number of ratings | **282** | — |
| Positive reviews | 20.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Ad-supported | — |
| Size | 30 MB | 4 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Shenzhen Smart Display Vision Software Technology Co., Ltd](https://appshunter.io/developer/1798929931) | [Greg Anderson](https://appshunter.io/developer/345127565) |

## What reviewers say

### FastCast.

[App page](https://appshunter.io/ios/app/fastcast/id1116898425)

Easily mirror your phone, tablet, or PC screen to a large TV with high quality and real-time response. Stream local videos, music, and photos, or enjoy YouTube and AirPlay casting for a shared entertainment experience.

**Highlights:** Screen mirroring to large TV, Cast local videos, music, photos, YouTube casting support, AirPlay support, Real-time response and stability

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FastCast VIP Weekly | $0.99 | per 7 days |
| FastCast VIP Monthly | $1.99 | per month |
| FastCast VIP Yearly | $15.99 | per year |


### SlangDecoder

[App page](https://appshunter.io/ios/app/slangdecoder/id6761937094)

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

**In-app purchases:** none


## Frequently asked questions

### Is FastCast. free?

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

### Is SlangDecoder free?

SlangDecoder costs $2.99, with no in-app purchases.

### Do FastCast. or SlangDecoder have ads?

FastCast. shows ads; SlangDecoder does not.

### Which is updated more often, FastCast. or SlangDecoder?

FastCast. ships an update every 2 months, and SlangDecoder every 2 months. Most recently, FastCast. was updated on October 11, 2026 and SlangDecoder on October 1, 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.*