RaceSync vs KastKing
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RaceSync
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.
- 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)
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Experience the thrill of drone racing with RaceSync, the official app of the MultiGP Drone Racing League. Easily find and join FPV drone races hosted by MultiGP chapters around the world—just create a free account and start exploring. For Racers: * Search conveniently for local and international race events with customizable race feed filters. * Browse all the MultiGP Series and quickly find the ones you are part of, including the 2026 Regional Series qualifiers and more. * Checkout the season Global Qualifier standings and filter by pilot name or country, and quickly share your personal results to social media. * Access detailed race information, including participants, video frequencies, ZippyQ web schedule and race result standings. * Pay race fees directly in-app using PayPal or credit card (USD only). * Stay updated about your next race round with push notifications from ZippyQ. * For detailed live results during a race, quickly access either LiveFPV or FPVScore pages. * Add events to your calendar and get directions to the venue. * Access your MultiGP QR code to be used at a ZippyQ kiosk. For Chapter Organizers: * Create, duplicate, delete and manage races with ease. * Manage pilot registrations, race payments, race series and more. Download RaceSync today and elevate your drone racing experience!
KastKing
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.
- 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
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The KastKing app supports the revolutionary iReel, with saving data and reporting through the smart sunglasses, as well as many other smart devices, including watches and wireless headphones. Together these technologies will change the future of fishing. On the water, iReel employs highly accurate motion capture sensors in the spool assembly to provide anglers with precise casting metrics, including the number of casts made, average distance, farthest cast, retrieve speed, and more. All the data is at your fingertip once your iReel is connected to the KastKing app. By providing real-time access to this valuable information, anglers can enhance their understanding of the fishing environment, analyze their successes and failures, and make necessary adaptations based on the prevailing conditions. As the KastKing intelligent fishing ecosystem continues to develop, anglers will soon be able to incorporate a host of exciting functions utilizing wearable tech ranging from Bluetooth watches to wireless earbuds and FishIQ Eyewear with directional audio and AR-enhanced elements that present data from the iReel to the angler in a hands-free format, allowing interaction in a way that is natural and intuitive without losing focus on the surroundings. Enjoy smart fishing with KastKing!
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | RaceSync | KastKing |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (53 ratings) — better | 2.3 (10 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 53 — better | 10 |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod, Apple Watch — better |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 23 MB | 130 MB |
| Age rating | 4+ | 4+ |
| Developer | MultiGP Inc. | Eposeidon Technology Co., Ltd. |
Customer experience
RaceSync
KastKing
In-app purchases
RaceSync
No in-app purchases
KastKing
No in-app purchases
