Knots Book

Essential knot reference.

Reference for essential knots (sailing, climbing, fishing, utility) with use cases and tying steps.

Free

Browse the full reference plus 3 AI knot asks per day.

Pro — $4.99/month or $19.99/year

Unlimited AI knot asks. Auto-renews. Cancel anytime in Apple Settings → Subscriptions.

Privacy

Knots Book keeps your notes on your iPhone. No accounts. No analytics. Coach questions are sent to a Cloudflare Worker that forwards them to a hosted Llama model. Full privacy policy.