Trackside: GPS Lap Timer

About this app

Get more from every lap with free, unlimited recording and automatic lap timing, turn-by-turn analysis, reference-video comparison, and shareable telemetry videos. Record with your iPhone or connect to a compatible Porsche or supported external GPS receiver, including RaceBox Mini, Mini S, Micro, and Dragy Pro. Import existing sessions from VBOX, Porsche Track Precision, Garmin Catalyst, and other supported apps. AUTOMATIC LAP TIMING • Record unlimited track sessions for free • Automatically detect supported tracks and begin recording • See live lap timing, predicted lap times, and your real-time delta to your best lap ANALYSIS & AI INSIGHTS • Review lap times, sectors, inputs, and an optimal lap from your fastest segments • Compare every turn and get telemetry-backed insights on your biggest opportunities • Compare your lap against any reference video with synchronized playback and a live time delta FRIENDS & LEADERBOARDS • Add friends and compare stats from your track days • Compete on friends-only leaderboards at each track • Share full session telemetry with friends and compare laps CAMERAS & VIDEO • Record with your iPhone or supported GoPro, DJI, and Insta360 cameras • Add and sync onboard footage, then export shareable videos with telemetry overlays IMPORT, SYNC & EXPORT • Import sessions from VBOX, Porsche Track Precision, and Garmin Catalyst • Sync saved cars and sessions across your devices with iCloud • Export session data in a VBOX-compatible format for use with other analysis tools TRY IT WITHOUT A CAR Enable Demo Mode in Settings to explore live telemetry, recording, lap analysis, and replay using a measured lap at Sonoma Raceway. TRACKSIDE PRO Session recording is free and unlimited. Trackside Pro unlocks telemetry-backed AI insights, reference-video comparison, full lap and session sharing with friends, and telemetry video export. VEHICLE COMPATIBILITY Trackside is designed for the following Porsche models when equipped with the Sport Chrono Package and Porsche Connect options required for Porsche Track Precision. Compatibility may vary by PCM software and region. 911 • 991.1 GT3 and GT3 RS — model year 2015 or later • All 991.2 models — model year 2017 or later • All 992 models 718 CAYMAN & BOXSTER • 981 Cayman GT4 — model year 2015 or later • All 982 / 718 models — model year 2017 or later OTHER MODELS • Cayenne — model year 2022 or later • Panamera — model year 2022 or later • Taycan — model year 2022 or later Questions or feedback? Email trackside@californiamotorsports.co Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Bug fixes

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

1. First observed Sep 11, 2026 · 8:52 AM Free