Read the session.
Find the corner.
Upload the file from your MyChron. PURPL tells you, in plain words, which corner cost you time and what to try next.
Free, with no card and no trial. Your first 30 sessions are stored. Reads XRK, XRZ and CSV files, or pulls the session over Wi-Fi with the mobile app.
Sign in with Google. Nothing to install on a laptop.
The verdict first
One sentence on how the session went, then the evidence: lap story, corner deltas, the perfect lap made of your own best sectors.
Graded against you
Every corner is measured against your own best lap, never an absolute score. Green is at your best, orange is time lost.
Honest about the data
A broken file, a missing beacon, a wet Sunday: PURPL says so and refuses to invent a number.
Built by Alessio Lorandi, 2013 CIK-FIA Karting World Champion (KFJ), who raced up to FIA Formula 2 and spent a decade reading data the drivers ignored. About PURPL
Before you upload
Which files does PURPL read?
XRK, XRZ and CSV exports from the AiM MyChron 5, MyChron 5S and MyChron 6. The PURPL mobile app can also pull a session straight off the logger over Wi-Fi.
Is it really free?
Yes. Every analysis feature is free, with no trial and no credit card. Your first 30 sessions are stored. Pro is there when you want unlimited sessions and unlimited AI analysis.
Does it replace a coach?
No. It replaces the guessing. It tells you and your coach which corner to talk about, with the numbers to back it up.