Measure distance by timing lightning and thunder. Press "Start" on lightning and "Stop" on thunder to calculate distance. Includes animation for lightning and sound effect for thunder.
by Kai Bruchmann★ 0.00 ratingsWeather$0.99Data updated 2026-09-06
Calculate wind values including head/tail and using TAS input and device location. Manually enter headings if compass data is unreliable. Display reciprocal headings and tracks. Use location data temporarily for wind calculations without storage.
Calculate mathematical functions with precise fractional results using square roots. Input integers, rational, or irrational numbers. Convert results to decimal. Compute f(α), f(β), and their sum for two variable inputs.
Access maritime training materials and tools for career advancement. View guidelines on safe seamanship practices. Track progress in distance learning courses. Share resources with colleagues.
Record phrases, start listening, stop recording, get
Allows users to phrases by pressing a button to start and stop speaking. The listens and provides feedback on accuracy, displaying what it heard. It uses iOS recognition technology to assess pronunciation.
Calculate celestial navigation using the Law of Cosines method. Input Local Hour Angle, declination, and latitude to determine altitude and azimuth. Track calculations and review results for accuracy.
Provides tools for calculating area, moment of inertia, distance from axis, radius of gyration, and section modulus for rectangular and square beams. Supports metric and imperial units.
Draw and share chemical structures with interactive tools. Calculate molecular formula, molecular weight, monoisotopic mass, and elemental composition in real time during drawing.