Description
Chainline Pro unlocks every tool marked PRO in the Chainline web app at /app/. Today that is Spark, the ignition-timing estimate for liter-class sportbikes with its full RPM × throttle map and CSV download. Lite tools (the Chainline gearing bench, phone GPS timer, Times lab and Weather) stay included.
- 7-day free trial: $0 today, then $4.99/month.
- One free trial per customer. If you have had a Chainline subscription or trial before, billing starts right away.
- Reminder email 3 days before the trial ends.
- Cancel anytime in My Account › Subscriptions. Pro stays on until the end of the current period.
- Failed payments are retried after 1, 3 and 7 days. Pro is paused until payment succeeds.
- Pay by card (Stripe) or PayPal.
Sign in to the app with the same account so Pro is attached to it. See Pricing and the Getting started guide.

Reviews
There are no reviews yet.