Keelbook Boat Logbook

Keelbook is a private maintenance logbook for UK narrowboat owners. Log engine hours with large gloves-friendly controls (+1, +0.5, or a custom amount). Add an optional note or oil / gearbox tag. Record pump-outs and water fills. Keep one current expiry each for BSS, CRT licence, and insurance, with optional local reminders 30, 7 and 1 days before they fall due. Open History for a mixed timeline of hours and services. Everything stays on your iPhone. There is no account, no cloud sync, and no advertising. Airplane mode works. Keelbook is a personal logbook and reminder tool. It is not legal advice, CRT evidence, or an insurer certificate. Not a canal map. Not a mooring stay timer or continuous-cruising tool.