# K Cast vs Relay

The clearest difference is price: Relay at Free against K Cast's $3.99. Relay also leads on rating (5.0 vs 4.6) and iOS requirement (15.1 vs 17.0). K Cast's advantage is in-app purchases (none vs 4) and chart position (#63 vs unranked). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

Relay is free to download; K Cast costs $3.99 up front. Relay sells 4 in-app purchases, starting at $9.99 per month. K Cast asks for nothing beyond the download.

Relay holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 7 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

K Cast ships an update every 2 weeks, Relay every 3 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | K Cast | Relay |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [4.6 (7 ratings)](https://appshunter.io/ios/app/k-cast/id6479280679/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/relay-9/id6755089025/reviews)** |
| Number of ratings | **7** | 3 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Paid | **Freemium** |
| Best chart rank | **#63** | — |
| Size | 1 MB | 44 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Randal Haehnel](https://appshunter.io/developer/1735424124) | [EightyOne18](https://appshunter.io/developer/1844861752) |

## What reviewers say

### K Cast

[App page](https://appshunter.io/ios/app/k-cast/id6479280679)

**Currently charting:** #63 Top Paid · Sports (US App Store)

This app allows baseball pitchers and catchers to communicate pitch calls securely and efficiently using a phone and AirPods. It eliminates the need for traditional signs, speeding up games and preventing stolen signals.

**Highlights:** Secure pitch communication, Uses phone and AirPods, Optional Apple Watch integration, Eliminates traditional signs, Speeds up game play, Prevents stolen signals

**In-app purchases:** none


### Relay

[App page](https://appshunter.io/ios/app/relay-9/id6755089025)

This app provides competitive coaches with a silent and instant pitch communication system. It allows for seamless relay of pitch calls to the catcher while meticulously tracking every pitch outcome and game statistics. Enhance your coaching strategy with detailed game analysis and custom team management tools.

**Highlights:** Silent pitch calling via earbuds, Complete game and pitch outcome tracking, Detailed at-bat and session history, Customizable pitch library, Roster and opponent management, Export game data to CSV

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $9.99 | per month |
| Pro Plus Monthly Plan | $19.99 | per month |
| Annual Plan | $99.99 | per year |
| Pro Plus Annual Plan | $199.99 | per year |


## Frequently asked questions

### Is K Cast free?

K Cast costs $3.99, with no in-app purchases.

### Is Relay free?

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

### Which has better reviews, K Cast or Relay?

Relay is rated higher. K Cast averages 4.6 out of 5 from 7 ratings, while Relay averages 5.0 from 3 ratings.

### Do K Cast or Relay have ads?

Neither K Cast nor Relay shows ads.

### Which is updated more often, K Cast or Relay?

K Cast ships an update every 2 weeks, and Relay every 3 weeks. Most recently, K Cast was updated on October 25, 2026 and Relay on October 24, 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.*