Showing 1–20 of 1,000 ranked alternatives.
PARENTSQUARE LLC
Students and teachers instantly
Send messages in real time across devices. Translate messages into over 90 languages. Share files, photos, and web content. Keep personal contacts private. Communicate between educators, students, and parents.
Afshin Jamshidi
Learn English by listening and speaking
Learn English through audio lessons focused on listening and speaking. Practice pronunciation with interactive exercises. Avoid traditional grammar lessons and focus on real language use. Build vocabulary through repetition and context.
Universal Queue LLC
Calculate time, speed, and distance
Calculate time, speed, and distance with interactive charts. Input variables to solve equations. Convert units and view results instantly. Share solutions and save calculation history. Sync with charts for accurate route planning.
Joseph Kim
Study navigation and practice exams
Study Navigation with over 1,200 practice questions covering Inland and International waters. Topics include Steering & Sailing , Lights & Shapes, and Sound Signals. Each question has detailed explanations.
Teachable Inc.
Learn anytime, anywhere
Access course content anytime and anywhere. View videos, read materials, and complete assignments. Sync progress across devices. Enroll in and track completion status. Receive notifications for new content and deadlines.
RPA TECHNOLOGIES SL
Calculate celestial positions in real-time
Calculate precise celestial positions using real-time data from 1900 to 2050. Input date and time to instantly recalculate GHA and declination for the Sun and Aries.
Debbrata Das
Practice tests and homework problems
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.
Adam Penner
Study aviation exams and track progress
Study aviation theory with structured courses and exam preparation materials. Complete practice questions and quizzes. Track progress and receive feedback. Earn credit toward Transport Canada ground school requirements.
Alejandro Martinez de Carvajal
Search navigation instantly anywhere
COLREGs offers flag identification, weather scales, cloud recognition, sound signal guidance, and vessel light details. Users can access navigation , interpret flags, and understand sound and light signals for safe boating.
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