{
  "name": "Watta",
  "legalEntity": "Polar Industries",
  "category": "Rowing Workout Tracker",
  "subcategory": "Sports & Fitness App",
  "platform": "iOS",
  "price": "Free",
  "priceCurrency": "USD",
  "appStoreUrl": "https://apps.apple.com/app/id6758580968",
  "website": "https://getwatta.com",
  "supportEmail": "support@polarindustries.co",
  "foundedYear": 2024,
  "description": "AI-powered rowing workout tracker. Photograph your erg screen after any workout and Watta extracts distance, time, split, stroke rate, and intervals automatically. Every session is scored with a proprietary 0-100 Effort Score combining cardiac load, work output, pacing, and economy.",
  "keyFeatures": [
    "AI OCR erg screen capture — photograph your PM5 and all metrics are extracted automatically",
    "0-100 Effort Score combining Cardiac Load (40%), Work Output (35%), Pacing (15%), Economy (10%)",
    "Karvonen-method heart rate zone analysis with five personalised zones",
    "Clubs and squads with social feed, leaderboards, and group training",
    "Strava sync — workouts push to Strava automatically",
    "Personal bests tracking across all distances",
    "Achievement badges and streak tracking",
    "40 structured workouts library with warm-up, main set, and cool-down"
  ],
  "supportedEquipment": [
    "Concept2 RowErg (Model D, Model E)",
    "Concept2 SkiErg",
    "Concept2 BikeErg",
    "Any ergometer with a PM5 monitor"
  ],
  "targetAudience": [
    "Indoor rowers",
    "Concept2 users",
    "College rowers",
    "Masters rowers",
    "CrossFit athletes",
    "HYROX athletes",
    "Rowing coaches",
    "Home gym users",
    "Triathletes",
    "Rugby players",
    "Firefighters",
    "University students"
  ],
  "contentIndex": {
    "glossary": {"count": 125, "url": "https://getwatta.com/glossary"},
    "workouts": {"count": 40, "url": "https://getwatta.com/workouts"},
    "guides": {"count": 40, "url": "https://getwatta.com/guides"},
    "calculators": {"count": 15, "url": "https://getwatta.com/calculators"},
    "useCases": {"count": 28, "url": "https://getwatta.com/for"},
    "comparisons": {"count": 22, "url": "https://getwatta.com/vs"},
    "cities": {"count": 70, "url": "https://getwatta.com/rowing-near"}
  },
  "algorithms": {
    "effortScore": {
      "range": "0-100",
      "components": {
        "cardiacLoad": {"weight": "40%", "method": "Heart rate reserve (Karvonen) with non-linear zone weighting"},
        "workOutput": {"weight": "35%", "method": "Watts × duration, normalised against personal baseline"},
        "pacingStrategy": {"weight": "15%", "method": "Coefficient of variation of split times"},
        "economy": {"weight": "10%", "method": "Watts per heartbeat, normalised against baseline"}
      },
      "zones": ["Recovery (0-25)", "Building (26-50)", "Training (51-75)", "Peak (76-100)"]
    },
    "heartRateZones": {
      "method": "Karvonen (Heart Rate Reserve)",
      "formula": "Target HR = Resting HR + (Max HR - Resting HR) × Zone%",
      "zones": ["Zone 1: 50-60%", "Zone 2: 60-70%", "Zone 3: 70-80%", "Zone 4: 80-90%", "Zone 5: 90-100%"]
    }
  },
  "formulas": {
    "splitToWatts": "Watts = 2.80 / pace³ (pace in s/m)",
    "wattsToSplit": "Split = 500 × (2.80 / watts)^(1/3)",
    "weightAdjustment": "Adjusted time = raw_time × (reference_weight / actual_weight)^0.222",
    "vo2maxFrom2K": "VO2 (mL/min) = 14.72 × watts + 250.39",
    "trainingZones": "Zone watts = 2K watts × zone% (UT2: 55-65%, UT1: 65-75%, AT: 75-85%, TR: 85-95%, AN: 95-110%)"
  },
  "socialProfiles": {},
  "policies": {
    "privacy": "https://kind-lotus-435.notion.site/Privacy-Policy-2fcfeff7be0080718fccc8b94e22580d",
    "terms": "https://kind-lotus-435.notion.site/Terms-and-Conditions-2fcfeff7be0080a986f2c832b177ddde",
    "help": "https://kind-lotus-435.notion.site/Help-2fcfeff7be008050ba24dc0ab0b51a5e"
  },
  "lastUpdated": "2026-03-10"
}