Chorus RF Laptimer vs Castle Crash 5
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chorus RF Laptimer
This application is a time tracking solution for small drone racing events. It is part of an open-source DIY project that provides hardware and software for accurate lap timing.
- DIY drone racing time tracking
- Open-source project
- Lap timing solution
- Hardware and software integration
- GitHub source code available
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The app is an essential part of the DIY "Chorus RF Laptimer" project, which is the open-source time tracking solution for small drone racing events. Full project description including hardware description and the source code is available at GitHub: https://github.com/voroshkov/Chorus-RF-Laptimer
Castle Crash 5
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Castle Crash 5 is the ultimate offline-first mobile app engineered specifically for resilient, high-stakes FPV drone event management. Operating over a localized Bluetooth Low Energy (BLE) mesh network, it keeps events flying smoothly by securely syncing flight-line queues, schedule updates, and real-time "On Deck" pilot alerts completely independent of cell service or Wi-Fi. Built for both pilots and race directors, the app features smart local notification syncing, an interactive gesture-driven safety onboarding flow, and a pro-grade RF deconfliction tool that runs advanced V-pattern heat algorithms to instantly eliminate signal interference across mixed Analog, HDZero, Walksnail, and DJI video systems. Optimized for the field with a high-performance dark mode, Castle Crash 5 ensures you can fly smart, queue fast, and protect your video link without any reliance on external servers.
Screenshots
Verdict
The clearest difference is update cadence: Castle Crash 5 at every 10 days against Chorus RF Laptimer's every 2 months. Chorus RF Laptimer's advantage is iOS requirement (10.0 vs 15.1). On price, ads, in-app purchases and device support 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.
Chorus RF Laptimer ships an update every 2 months, Castle Crash 5 every 10 days. The most recent releases landed on October 21, 2026 and October 17, 2026 respectively.
| Parameter | Chorus RF Laptimer | Castle Crash 5 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 23 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Hypercube DOO | CloudVue LLC |
In-app purchases
Chorus RF Laptimer
No in-app purchases
Castle Crash 5
No in-app purchases
Questions
Is Chorus RF Laptimer free?
Is Castle Crash 5 free?
Do Chorus RF Laptimer or Castle Crash 5 have ads?
Which is updated more often, Chorus RF Laptimer or Castle Crash 5?
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