# Flex Delivery vs CastOn

The clearest difference is in-app purchases: Flex Delivery at none against CastOn's 11. Flex Delivery also leads on ads (none vs shown) and iOS requirement (12.0 vs 16.0). CastOn's advantage is chart position (#188 vs unranked). On price, update cadence and device support there is nothing between them.

Both are free to download. CastOn sells 11 in-app purchases, starting at $4.99 per 7 days. Flex Delivery asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 7, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Flex Delivery | CastOn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (5.3K ratings)](https://appshunter.io/ios/app/caston-smart-screen-share/id6572304963/reviews)** |
| Number of ratings | — | **5.3K** |
| Positive reviews | — | 36.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Best chart rank | — | **#188** |
| Size | 23 MB | 58 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Carvs Sistemas e Serviços de Computação em Nuvem LTDA](https://appshunter.io/developer/1535975291) | [EpicScale Inc](https://appshunter.io/developer/1759187257) |

## What reviewers say

### Flex Delivery

[App page](https://appshunter.io/ios/app/flex-delivery/id6502287869)

**Features:** macOS Compatibility

**In-app purchases:** none


### CastOn

[App page](https://appshunter.io/ios/app/caston-smart-screen-share/id6572304963)

**Currently charting:** #188 Top Grossing · Utilities (US App Store)

Easily share your iPhone screen with others on a larger display. Stream photos, videos, browser content, or even use it as a live camera feed. Features a collaborative whiteboard for shared creativity.

**Highlights:** Screen mirroring for all iPhone content, Cast photos and videos to TV, Interactive whiteboard mode, Live camera streaming to TV, Browser mirroring for shared browsing

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $4.99 | per 7 days |
| Weekly Plan | $4.99 | per 7 days |
| Weekly Plan | $5.99 | per 7 days |
| Weekly Premium | $5.99 | per 7 days |
| Weekly Plan | $6.99 | per 7 days |
| Weekly Plan | $6.99 | per 7 days |
| Yearly Plan | $19.99 | per year |
| Annually Plan | $29.99 | per year |
| Annually Plan | $39.99 | per year |
| Lifetime access | $1.99 | one-time |
| Lifetime access | $4.99 | one-time |

**What reviewers like**

- ⭐ Excellent
- ⭐ Jesus

**What reviewers complain about**

- 🚫 Terrible app
- 🚫 Garbage
- 🚫 Doesn't work
- 🚫 Worst app ever
- 🚫 Waste of money

**Reported bugs**

- Doesn't cast iPhone to LG tv
- Unsuccessful screen sharing

**Requested features**

- Sound transfer to TV


## Frequently asked questions

### Is Flex Delivery free?

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

### Is CastOn free?

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

### Do Flex Delivery or CastOn have ads?

CastOn shows ads; Flex Delivery does not.

### Which is updated more often, Flex Delivery or CastOn?

Flex Delivery ships an update every 3 weeks, and CastOn every 3 weeks. Most recently, Flex Delivery was updated on October 7, 2026 and CastOn on October 19, 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.*