# RaceSync vs KastKing

The clearest difference is rating: RaceSync at 4.9 against KastKing's 2.3. RaceSync also leads on ratings volume (53 vs 10). KastKing's advantage is update cadence (monthly vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RaceSync holds the better App Store score, 4.9 against 2.3. That said, the two scores are not equally well evidenced: RaceSync has 53 ratings behind it against 10, so its average is the more settled of the two.

RaceSync ships an update every 3 months, KastKing monthly. The most recent releases landed on June 24, 2026 and August 6, 2026 respectively.

## The numbers

| Metric | RaceSync | KastKing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (53 ratings)](https://appshunter.io/ios/app/racesync/id1491110680/reviews)** | [2.3 (10 ratings)](https://appshunter.io/ios/app/kastking/id6448140335/reviews) |
| Number of ratings | **53** | 10 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free | Free |
| Size | 23 MB | 130 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [MultiGP Inc.](https://appshunter.io/developer/1491110679) | [Eposeidon Technology Co., Ltd.](https://appshunter.io/developer/1649156137) |

## What reviewers say

### RaceSync

[App page](https://appshunter.io/ios/app/racesync/id1491110680)

Discover and join FPV drone races globally with this app. Find local and international events, view detailed race information, and manage your participation. Organizers can also create and manage races.

**Highlights:** Find and join drone races worldwide, Customizable race feed filters, Detailed race information and standings, In-app race fee payments, Push notifications for race updates, Manage and create races (organizers)

**In-app purchases:** none


### KastKing

[App page](https://appshunter.io/ios/app/kastking/id6448140335)

This app connects to smart fishing devices like the iReel to track casting metrics and provide real-time fishing data. Enhance your fishing experience by analyzing performance and adapting to conditions with wearable technology integration.

**Highlights:** Connects to iReel and other smart devices, Tracks casting metrics (casts, distance, speed), Provides real-time fishing data analysis, Integrates with wearable tech (watches, headphones), Future AR-enhanced elements planned, Hands-free data interaction

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RaceSync free?

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

### Is KastKing free?

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

### Which has better reviews, RaceSync or KastKing?

RaceSync is rated higher. RaceSync averages 4.9 out of 5 from 53 ratings, while KastKing averages 2.3 from 10 ratings.

### Do RaceSync or KastKing have ads?

Neither RaceSync nor KastKing shows ads.

### Which is updated more often, RaceSync or KastKing?

RaceSync ships an update every 3 months, and KastKing monthly. Most recently, RaceSync was updated on June 24, 2026 and KastKing on August 6, 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.*