Current Coach

M2X Current Measurement

$4.99 · Designed for iPad. Not verified for macOS.

Drop a drifter in the water and ping twice for tidal current speed, direction, and a confidence score in seconds. Heat-map mode interpolates the full vector field. Current Coach turns your iPhone into a precision tidal current meter for sailors, racers, and cruisers. Drop your phone into a waterproof drifter, let it move with the water for 30–60 seconds, and get the speed and direction of the current in real time. Whether you're calling the first shift off the pin, staying out of a foul current at the layline, or understanding why the boat felt slower on port tack — Current Coach gives you the data instead of the guess. KEY FEATURES • PRECISION MEASUREMENT GPS-driven drift readings with start-to-end displacement. Every measurement shows speed in knots and m/min, direction in degrees, duration, and a confidence score combining GPS quality, recording length, and drift distance. • GPS SIGNAL SCOPE Before you hit Start, a radar-style scope shows live GPS accuracy — color-coded green/blue/amber/coral so you know whether the first ping will be good enough to anchor the reading. • HEAT-MAP VECTOR FIELD Toggle heat-map mode on the map and Current Coach interpolates a full vector field of currents across your race area from the readings you've collected. Lookback adjustable 1–24 hours. Confidence fade shows where the extrapolation is strong vs. weak. • HISTORICAL REVIEW Tap any recorded measurement to jump to the map with a ±12 hour window focused on that moment. Retrace a tack. Compare morning practice to the afternoon race. See how the current evolved. • M2X CLOUD SYNC (OPTIONAL) Sign in with an m2xsailing.com account to sync measurements to the cloud. View them in the web File Library, share with teammates, or disconnect any time. All core features work offline without signing in. • DESIGNED FOR THE HELM Dark palette, large numeric read-outs, readable under sunlight. Portrait-locked. Recording continues while the phone is pocketed. No ads, no subscription, no in-app purchases. Built for sailors who need the answer, not a guess.

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The developer, William McBride, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

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    Accessibility

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    Information

    Seller
    • William McBride
    Size
    • 1.5 MB
    Category
    • Sports
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Location
    • This app may use your location even when it isn’t open, which can decrease device battery life.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 M2X Sailing
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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