Improve focus, reaction speed, and mental agility through timed arithmetic exercises. Track progress with performance metrics. Adjust difficulty levels to challenge users. Sync results across devices for consistent practice.
Calculation allows users to perform scientific computations with trigonometric and inverse trigonometric functions. Users can toggle between degree and radian modes. Expressions and results can be copied with a double tap.
Practice pronunciation by comparing similar sounds and identifying correct ones. Complete quizzes to train auditory recognition. Receive feedback on pronunciation accuracy. Track progress over time.
Mix colors by combining two basic shades to match a target color. Adjust the mixture using a flushing button. Pour liquid to fill the container without overflowing. Confirm the result by pressing OK to check accuracy.
Calculate with dual-line display and multi-line input
A with dual-line display showing input and result. Supports multi-line equations and tap-to-move cursor. Saves calculation history with timestamps and labels. Allows emailing calculations and swiping to review previous entries.
Manipulate facial expressions by adjusting arrows on the . Match expressions to scenes like funerals or weddings. Practice making happy, sad, or surprised faces. Share results with friends.
Solve puzzles with pinch zooming and landscape mode. Access clue lists and check answers. Resume puzzles anytime. Customize preferences. Backup and restore progress. No ads.
Calculate with dual-line display and multi-line input
A with dual-line display showing input and result. Supports multi-line equations and tap-to-move cursor. Saves calculation history with timestamps and labels. Allows emailing calculations and swiping to review past entries.
Answer yes/no questions by focusing and pressing the red button. The uses predictive technology to calculate and display answers with variable accuracy. View historical responses and reset the orb for new questions.
Explore a virtual to find items and solve puzzles to . Tap to search, select, or use items. Zoom in on selected items for details. Access hints to assist with solving riddles.
Test your reflexes with timed button mashing challenges. Choose from 10-second, concentration, or 60-second modes. Compete globally in leaderboards that reset regularly. Track progress and compare scores with other players.