Chorus RF Laptimer vs GT Launch
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
GT Launch
This application acts as a GPS performance meter, integrated with drag and track modes. It provides highly accurate satellite data for measuring speed, acceleration, and lap times. Users can also share their driving data with a community.
- GPS performance meter
- Drag and Track modes
- Accurate satellite data
- Customizable speed/distance ranges
- Built-in track database
- Lap time and trace analysis
- Community data sharing
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Proprietary GPS device is required to use the App. GT-Launch is a all in one GPS performance meter which integrated with Drag and Track mode. Hi-Tech Dual band 20 Hz GPS module provides the most accurate satellite data anywhere in the world. Assisted GPS technology implementation makes satellite connection complete within few seconds. In addition, differential calculation GPS data with fixed in ground base station makes data more reliable. It is easy to use, with one click on our proprietary phone APP, you are connected. If you ever wonder what is your 0-60 or 1/4mile speed is? GT-Launch is the way to go. With few click in the APP, you are ready to roll. You can also customize any speed range or distance range in the APP to get whatever the data you desired. For the track mode, you will have more than 200 tracks in the U.S in our built in track database. You also have the flexibility to create your own track. You will get your lap time, lap trace, speed at every single corner and even overlap two laps to figure where you did better to improve your lap time. All those data are available in our track analyzer. With GT-Launch, you will get most accurate GPS data, be able to figure out if your modification works, instant access of all the driving data. Our APP also provides community for all the users to share your driving data and explore other driver's data. It is the way to go APP for anyone interested in Drag and Track racing. Please visit our website for more information www.gtlaunch.com
Screenshots
Verdict
The clearest difference is rating: Chorus RF Laptimer at 5.0 against GT Launch's 4.0. Chorus RF Laptimer also leads on review sentiment (80% vs 50%) and iOS requirement (10.0 vs 15.6). GT Launch's advantage is update cadence (every 5 days vs every 2 months) and ratings volume (4 vs 1). 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.
Chorus RF Laptimer holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews point the same way: 80% of Chorus RF Laptimer's written reviews are positive against 50% of GT Launch's.
Chorus RF Laptimer ships an update every 2 months, GT Launch every 5 days. The most recent releases landed on September 17, 2026 and September 15, 2026 respectively.
| Parameter | Chorus RF Laptimer | GT Launch |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.0 (4 ratings) |
| Positive reviews | 80.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 1 | 4 — better |
| Update frequency | Every 2 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 10.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 23 MB | 69 MB |
| Age rating | 4+ | 17+ |
| Developer | Hypercube DOO | Blueberry Technology LLC |
Customer experience
Chorus RF Laptimer
GT Launch
In-app purchases
Chorus RF Laptimer
No in-app purchases
GT Launch
No in-app purchases
