UltraKayak

UltraKayak is an Apple Watch kayak training recorder for paddlers who want a focused, honest record of every session. Start a session on Apple Watch, paddle with a locked, glove-friendly screen, and your motion and GPS data transfers to iPhone automatically — with visible progress, resumable transfers, and a receipt when each session is stored. Optional iCloud backup is off by default. If you turn it on, your training data moves between your devices and your own iCloud; we do not receive or have access to your backups. Heart rate is never backed up to iCloud; it is read again from the Health app after a restore. On iPhone, review each session in depth: your route on the map with speed coloring, distance, duration, average speed, stroke rate, distance per stroke, and per-kilometer splits. Read heart rate from the Health app when you also record a workout. Add notes, gear, and manually logged tide conditions to keep the full story of each paddle. Over time, UltraKayak builds your personal baseline and shows weekly trends, so you can compare any session against your own recent level — honestly: data that was not captured is shown as missing, never faked. Key features: - One-tap start on Apple Watch with water-lock protection. - Reliable Watch-to-iPhone transfer: progress, resume, and stored receipts. - Route map with speed coloring, per-kilometer splits, up/downstream comparison. - Stroke rate, stroke count, and distance-per-stroke analysis. - Heart-rate curve read from the Health app (when recorded with a workout). - Personal baseline and weekly trends. - Notes, gear, and manual tide logging. Chinese and English interface. - iPhone GPS-only recording when you paddle without a watch. - Optional iCloud backup and restore. - No UltraKayak account needed. Your optional backups stay in your own iCloud, outside our access. UltraKayak is for sports training review only. It does not provide medical advice, diagnosis, treatment, rehabilitation guidance, or injury-prevention recommendations.