Last updated September 2026
Buying an individual title or a bundle is a personal-use licence to those files (PDF, EPUB, and audio where available), yours to keep, no recurring charge. A subscription is a personal-use licence to the whole PerformanceOpti library for as long as it stays active — including new titles and tools added after you join. Please don't redistribute, resell, or share the files — that's what keeps a library like this possible to keep growing.
Cancel anytime from your PayPal account (Settings → Payments → Manage automatic payments) — that stops future billing immediately. You keep access through the end of the billing period you already paid for; there's no further charge after that. Anything you bought outright is unaffected by cancelling — that's yours regardless.
Read it, use it, cook from it for 30 days. If it hasn't changed how you train, eat, or cook, request a refund through your order confirmation (one-time purchases) or on your first payment (subscription) — no interrogation, no hoops. Refunds are handled by our payment processor per the guarantee above.
These books are educational, not a substitute for personalised medical, fitness, or nutrition advice. See the specific disclaimer printed in each book before starting any new exercise or eating pattern.
Questions about these terms: hello@performanceopti.com.