The California Motorsports Company

San Francisco, CA

Trackside · GPS lap timer & telemetry

Meet Trackside

Built by The California Motorsports Company in San Francisco, Trackside is an iPhone GPS lap timer and telemetry app for track days. Record unlimited sessions for free using your iPhone, a supported external GPS receiver, or a compatible Porsche. Bring live lap timing and recording controls to Apple CarPlay, then review your driving with lap comparisons, sectors, and an optimal lap.

Add onboard video, compare personal bests with friends, and keep a tire log for each car. Trackside Pro adds AI insights, reference-video comparisons, telemetry video export, full lap-data sharing, and optional MCP connections for ChatGPT and Claude.