Import a session file (.xrk, .ubx, .csv, .vbo, .mp4)

Any supported session file can be imported directly — useful for files shared by a teammate, copied from a memory card, or exported by another app.

Steps

1. Open the Import tab.
2. Tap Choose a file.
3. Pick the file from your phone's file browser — local storage, iCloud Drive, Google Drive, and similar all work.
4. The session appears in Sessions, parsed and ready to analyze.

Supported types

• .xrk / .xrz / .drk — AiM MyChron session files
• .ubx — RaceBox recordings
• .csv — phone GPS logs recorded by LapperSnapper
• .vbo — RaceLogic VBOX files exported from RaceChrono, TrackAddict, Harry's LapTimer, or another RaceBox app
• .mp4 / .mov — GoPro video with embedded GPS telemetry

Tips

• Files also open from outside the app: share or "Open with" a supported file from Mail, AirDrop, or a chat app and choose LapperSnapper.
• If a file won't import, it may be incomplete or from an unsupported device — see Contact support and send us the file; format coverage grows all the time.