Physics by Voice vs Notra

Physics by Voice is an interactive mechanics course built around an original step-by-step teaching method. The course begins with the most fundamental questions: what “where” means, how a coordinate and a reference frame describe position, and how motion is represented as a change in position. It then introduces velocity, acceleration, forces, Newton’s laws, work, and energy one concept at a time. The app includes: • 18 sequential mechanics lessons • Spoken explanations and questions • Speech recognition for answers • Clear coordinate, vector, and force diagrams • Practice problems with detailed solutions • Russian and English languages • Progress stored locally on the device • No advertising and no in-app purchases Course topics include: • Foundations of physical quantities and formulas • Kinematics and reference frames • Vectors, free fall, and circular motion • Dynamics and Newton’s laws • Gravitation, weight, and weightlessness • Pressure and Archimedes’ principle • Momentum, friction, and torque • Center of gravity and equilibrium • Work, power, kinetic energy, and potential energy Microphone and speech-recognition access are used only for voice interaction. The app has no user accounts, advertising, or developer-operated data collection.

Tired of rereading notes without remembering them? Notra turns your own class material into active study tools. Take a photo, import a PDF, or paste text. In seconds, get a clear study guide, flashcards, a quiz, and an AI tutor that answers from your material. Review the key ideas, test your knowledge, and ask for an explanation whenever a concept feels unclear. Everything stays organized by subject so every lesson is easy to find. From middle school to college, Notra helps you study what you are actually learning instead of generic content. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/