Learn with 240 teaching examples and 340 exercises categorized by 30 tactical methods. Practice by solving problems and reviewing solutions. Track progress through structured lessons and level-based content.
Solve problems to improve mental arithmetic. Customize difficulty levels and track progress over time. Includes daily exercises and training sessions. Share scores with friends.
Practice tactics with over 1300 exercises, including 200 exploratory examples and 1100 solving problems. Learn 40 tactical methods and motifs. Track progress across skill levels from beginner to professional.
Learn with visual patterns and chord diagrams. Practice exercises to improve speed and accuracy. Track progress with built-in quizzes and feedback. Sync lessons across devices and adjust difficulty levels.
Explore historical events by identifying iconic images and pinpointing locations and time periods. Challenge knowledge of and achievements. Track progress through global virtual adventures and time-based quests.
The app introduces children ages 10 and up to a multiconnected universe through nine familiar games. Players develop an intuitive visual understanding of a finite universe that has no boundary.
Prepare for the CEH exam with 500+ practice questions. Review detailed explanations and track progress with smart analytics. Access materials offline and test knowledge with realistic exam simulations.
Teach mental through 4 and a challenge mode. Allow players to customize settings and track results for up to 4 users. Offer 1 difficulty level in free version, with 3 levels in full version. Access Game Center for competitive play.
Tests simulate exam conditions with timed questions and instant feedback. Review detailed explanations for correct and incorrect answers. Track progress and identify weak areas to focus study efforts.
Play a offline to guess idioms based on given sentences. Input answers to progress through levels. Learn proverbs and cultural expressions through interactive challenges.
Solve puzzles based on from a textbook by Sergey Ivashchenko. Identify critical moves with visual hints and feedback. View the piece to move after incorrect attempts. Track progress through structured lessons.