View NOAA and USACE nautical charts for U.S. waters in vector format. Create routes, waypoints, and boundaries. Sync navigation objects across devices. Track boat position and speed. Set and monitor alarms for depth, speed, and proximity.
Access HD for USA, Canada, UK/Ireland, Germany, Netherlands, and European rivers. View NOAA vector , freshwater maps, and USACE inland river maps with bathymetry. Create or import GPX/KML routes. Use voice prompts for navigation.
Calculate decayed activity using mCi or Bq units. View decay charts with tap-to-examine features and customizable input parameters. Save chart snapshots to camera roll. Estimate dose rates for isotopes as point sources at specified distances.
Use device as high-performance GPS receiver with USA Raster Nautical . Access without cell signal. Navigate safely in emergencies. Sync with chart plotter if available. Download for offline use. Track location and display real-time data.
Practice exams with 1400+ questions covering math, reading, mechanical comprehension, aviation, and nautical topics. Take practice tests, use flashcards, and access a prediction test. Complete lessons with homework problems and a test.
Run to explore galaxies and learn about their unique features. Track progress intergalactic distances. Unlock content by completing challenges. View detailed information about galaxies and black holes. Share achievements with friends.
Practice and challenge blackjack skills with simulated games, track betting strategies, and test knowledge of layouts and wheel patterns. multiplication tables and predict neighboring numbers or colors on the wheel.
Distances between points or calculate area of locations. Draw paths on maps or tap to add points. Record movement automatically while walking, running, or cycling. Save measurements for later review.
Visualize distances on maps with customizable circles. Set parameters and units. Display areas to check proximity of locations. Track multiple points within defined ranges.
Log hunting trips with GPS tracking and map integration. Record deer sightings and activity patterns. Manage gear inventory and set reminders for maintenance. Share trip details with other hunters. Export data in multiple formats for later review.
Solves equations for y, x, and a in y = log_a(x) with graphing. Explains computation of log_e(x) using Taylor series and log_10(x) via digit-by-digit method. Provides proof of log_e as the integral of x inverse.
Learn single-digit to advanced problems with customizable difficulty levels. Use Apple Pencil for writing answers, speech input for verbal responses, and iCloud Sync across devices. Track progress and adjust settings for individual learning needs.