Study and test knowledge of the 20 standard acids through customizable quizzes. Topics include names, structural formulas, 1-letter and 3-letter codes, codons, and side chain classes. Quizzes are available for free. Remove ads with an in- purchase.
Practice arithmetic operations including addition, subtraction, multiplication, and division. Track missed numbers in a sequence. Complete quizzes across 22 categories. Available in 30+ languages.
Learn basic operations including addition and subtraction up to 20, adding tens, and identifying missing numbers in sequences. with unlimited access to educational content and over 500 quizzes.
With interactive lessons and practice speaking, reading, and listening. Use a chatbot for conversational practice. Test skills with native speakers. Utilize voice recognition and hands-free learning features.
Learn languages through interactive games and vocabulary practice. Choose from multiple languages including Spanish, Japanese, French, and others. Set goals, unlock achievements, and earn rewards.
Learn numbers and counting in English, Spanish, and French with correct pronunciation. Tap characters to hear sounds and speak with them. Practice animal sounds by calling frogs, dogs, and chickens.
Practice with quizzes covering arithmetic operations. Solve problems with varying difficulty levels. Access free printable workbooks. Remove ads to unlock offline mode and all features.
Teach toddlers first words through interactive flashcards. Choose from 12 topics including animals, fruits, and household items. Tap cards to hear words and see images. Complete to reinforce . No ads included.
Practice with arithmetic exercises covering multiple difficulty levels. Solve problems in various categories. Download a free printable workbook. Remove ads to access offline mode and all features without internet.
Learn words and phrases with correct pronunciation
Learn commonly mispronounced words and phrases. Adjust speech speed to focus on sound details. Practice intonation for better comprehension. Support multiple languages including English, Spanish, French, Chinese, and others.
Scan text from images or documents and it to your clipboard. Supports multiple languages including English, Spanish, French, and more. No file saving or translation features.
Learn to drive through interactive missions and realistic simulations. Choose from multiple car models and customize settings. Practice in various weather conditions and challenging environments. Improve parking skills with targeted exercises.