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.
Translate text directly from a keyboard with support for over 50 languages including Arabic, Spanish, Chinese, and Russian. Switch between languages instantly. Translate selected text with a single tap.
Dictionary provides translations between and 20 other languages. Users can look up words, view definitions, and switch between languages. Supports offline use and direct sharing of translations.
Create unique items by combining 580 available elements. Mix elements to discover dinosaurs, unicorns, and spaceships. Play one-handed with night mode and achievements. Choose from multiple languages. Solve puzzles through combinations.
Practice mental skills with brain training that track progress and display score history and graphs. View daily scores and performance across all . Set goals and monitor improvements over time.
Look up words with translations in 20 languages. Switch between languages for definitions. Save favorite terms for quick access. Share translations via copy or social media.
Teach basic skills with interactive quizzes on addition, subtraction, and number comparisons. Complete 700 free tasks across different difficulty levels. Remove ads to access an ad-free version.
Languages by speaking sentences and receiving translations. Practice pronunciation with word-by-word exercises. Get feedback on speech accuracy using AI. spoken input into target languages. Track progress through interactive lessons.
Translate text, speech, and images between languages. Use real-time video translation for conversations. Access translations from Google, Microsoft, Baidu, Youdao, Sogou, Tencent, and other labs. Edit and share translated content.
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 through pattern-based grouping for easier memorization. Tap words to view definitions, synonyms, examples, and pronunciation. Practice with interactive exercises and games to reinforce learning.
And speech between 100+ languages. Use input for real-time translations. Access offline mode for translation without internet. Switch between and translation options. View translated and audio output.
Look up words in 53 language pairs with or without internet. Download and update vocabularies for free. Access German-English translations with over 1 million entries. Use as a bidirectional for both directions.
Interactive lessons and vocabulary practice. Choose from 30+ including Arabic, Chinese, and Spanish. Practice speaking, listening, and writing. Track progress and set learning goals. Connect other learners in a community.
Teaches names through interactive puzzles. Children match and assemble images. Features 100+ puzzles with animals from farm, jungle, zoo, and water environments. Encourages fine motor skills and tactile learning.
Browse with AI-driven recommendations. Swipe to discover personalized titles. Access 73,530 in 40 languages. Read key insights and highlights. Search for specific genres or authors. Save favorite for later. Share via links or social media.
Translate words quickly with timed challenges for language practice. Test in both native and target languages. Choose from A1 to C2 levels. Supports English, Spanish, Chinese, German, Italian, and French. No internet required.
Study of verses in multiple languages alongside English translations. Switch between languages, view side-by-side comparisons, and access over 60 language options. Save preferred translations and review verses with built-in dictionary support.