dragy

Precision GPS timing for serious straight line performance

Dragy is a niche but powerful tool built for enthusiasts who care about hard data rather than seat-of-the-pants impressions. Paired with the dedicated Dragy GPS device, it turns your car into a rolling test lab, capturing 0–60 mph, 60–130 mph, 0–130 mph, quarter-mile, and half-mile runs with impressive granularity.

The interface is clean and focused on what matters: clear timing sheets, speed graphs, and best-run summaries. Starting a session is straightforward, and the real-time speed readout makes it easy to know when a run is valid. Once a pass is complete, Dragy automatically logs your results, including elevation and slope, which is crucial for comparing runs fairly.

One of its standout features is the community aspect. A built-in leaderboard lets you benchmark your times against other users with similar cars or modifications, giving extra context to your performance numbers. The app also supports video overlays with a live speedometer and performance stats, perfect for sharing runs on social media or reviewing your driving later.

Accuracy largely depends on the external Dragy unit, which uses high-frequency GPS to deliver reliable timing far beyond what typical in-car instruments can offer. The downside is that without the hardware, the app is essentially non-functional, and that additional purchase may put off casual users.

Overall, Dragy is an excellent choice for tuners, drag racers, and data-obsessed drivers who want consistent, GPS-verified performance measurements. It is not a toy or a game, but a serious companion for testing upgrades, dialing in launches, and tracking real improvements over time.