Calculate by entering speed and air temperature. Support units for air temperature including °C, °F, and Kelvin, and speed in mph, km/h, m/s, and knots. Include a temperature converter for unit conversion.
View current in mph, km/h, knots, and other units. Display altitude above sea level. Track max and altitude during trips. Monitor distance traveled in trips. Check on Apple Watch. Pro upgrade unlocks custom colors, HUD mode, and ad removal.
Tie knots with step-by-step visual guides. Choose from over 200 types. Save favorite knots for quick access. Share instructions via email or social media. Adjust tension and material settings. View progress with interactive diagrams.
Learn and practice essential used in Ranger and Sapper training. View detailed step-by-step instructions with visual diagrams. Search for specific by name or category. Save favorite for quick access. Test knowledge with quizzes and progress tracking.
The app provides instruction on nine essential sailor knots. Users can practice these knots with a rope approximately 1.5 meters long and 1 centimeter in diameter.
Learn to tie with step-by-step tutorials covering 195+ . Organize by activity category and type. View detailed instructions using rope, paracord, or other materials. Save and reference knot diagrams for climbers, boaters, and other users.
View step-by-step instructions for 18 necktie styles including Windsor, Four In Hand, and Bow. Follow mirrored images for clear guidance. Email instruction images to share with others. No internet required for access. Supports iPhone and iPad.
Displays current speed in mph, km/h, or knots. Features Retina Display and large indicators for clear visibility. No ads included. Uses device hardware to estimate speed. Accuracy improves with less transparent indicators.
"View step-by-step instructions for tying . Identify for different line types and thicknesses. Learn which weaken lines and how to secure hooks, lures, and swivels effectively."
Monitor trip data with live metrics like average speed, current speed, top speed, distance, direction, travel time, stationary time, and clock. Customize display style and speed units. Arrange metrics on screen.
Learn knot-tying and silk styling through interactive video tutorials. Adjust playback speed, skip, and loop lessons for practice. Access step-by-step instructions, tips, variations, and photos to guide your creations.
View 7-day forecasts with today’s max and min temperatures. Check 'feels like' temperature and wind details including speed in multiple units. Track humidity levels and precipitation probability. Customize layout and preferred parameters.
Knots with detailed step-by-step guides. View each knot's steps in full 360 rotation. Access tips and useful information for each knot. Categorize knots into three groups for easy reference.
Track , distance, and location using GPS. Display in analog and digital formats. Monitor time and vehicle velocity. View current location and record trip data.