Finns SwimLog vs OpenSwim

A swim log that imports the workouts your Apple Watch recorded and analyzes them: 3D stroke motion, per-stroke form, heart rate, pace and SWOLF. ■ 3D stroke reconstruction The motion sensors in your Apple Watch record your wrist path. One stroke cycle is rebuilt in 3D so you can rotate it and view it from the side, top and front. ■ Per-stroke form analysis Freestyle, backstroke, breaststroke and butterfly are analyzed separately: high elbow versus straight arm, wrist direction at entry, and the acceleration profile across catch, pull, push and recovery. ■ Coach report Each session is scored against eight movement patterns right after it ends. Thresholds shift with your level — beginner, intermediate, advanced — and the report names the drill to try next. ■ Calibration Enter your arm length once and the trajectory calculation becomes more accurate. ■ Multi-chart timeline Stroke, heart rate, pace and lap distance are aligned on one time axis. Drag the scrubber to read the values at any point in the session. ■ Automatic import and sorting Swim workouts stored on your iPhone are imported with no manual entry. Lessons and free swims are labeled automatically from time-of-day and weekday patterns, and sensor gaps caused by wall turns and underwater phases are merged back into a single lap. ■ Analytics dashboard Pace, distance, heart-rate trend, SWOLF by stroke, and time-of-day and weekday patterns, by week, month, year or all time. ■ Personal bests A PB is tracked for every stroke and distance combination, shown together with its average pace. ■ Swimmer profile Your accumulated data is classified as endurance, sprinter, technique or power. ■ 240 medals 30 categories across 8 tiers: Bronze, Silver, Gold, Platinum, Diamond, Master, Grandmaster, Legend. ■ Avatar and collection A character that grows through six stages with your swim volume, plus a collection of swimsuits, caps, goggles, watches and gear. Requirements · iPhone, and an Apple Watch to record the swim workouts · Health (HealthKit) access — to read swim workouts and heart rate · Location access (optional) — to find nearby pools Data handling All swim data is analyzed and stored on your device. What leaves the device is exactly what the App Privacy label lists.

OpenSwim is your AI-powered open water swimming companion. Whether you're a skins swimmer braving the Atlantic, a wetsuit triathlete scouting your next crossing, or a beginner checking if conditions are safe. OpenSwim gives you everything you need before you hit the water. Real-time ocean conditions Get hyperlocal forecasts for your favourite beaches — wave height, swell period, water temperature, wind, UV, and current — all interpreted specifically for swimmers, not surfers or sailors. AI swim coach Ask anything about open water swimming. Get personalised coaching advice, safety guidance, cold water acclimatisation tips, and training plans built around ocean conditions. Epic Crossings Plan legendary open water routes with AI-generated course intelligence, marine activity reports, and safety scoring. Cold Water & Safety tools Pre-swim checklists, cold water immersion guides with duration ranges by experience level, and rip current awareness — built by swimmers, for swimmers. AI Vision Beach Analysis Upload a photo of any beach and get an instant AI safety briefing with hazard identification. Swim Logger & Analytics Log every ocean swim, track your progress, and review your history over time. OpenSwim is free to use.