Mathstep vs Yikou

MathStep is a smart tutor app for university entrance prep and higher-level mathematics. It presents solutions step by step, helping you grasp not only answers but the thinking process. Key Features Step-by-step guidance: Breaks problems into clear, ordered steps Clean math display: Professional, easy-to-read expressions Similar problems: Auto-generated practice with detailed explanations Learning history: Review past problems and answers anytime Advanced keypad: Supports exam-level functions Multi-language: Japanese, English, Korean, and Chinese Who It’s For High school students preparing for entrance exams, university students deepening their skills, adult learners revisiting math, and teachers seeking effective classroom tools. MathStep organizes complex equations into manageable steps—from algebra and calculus to trigonometry and beyond—guiding you with a clear, calm approach. Download MathStep to build understanding and measurable progress.

Learn Mandarin one useful bite at a time. Yikou brings pronunciation, vocabulary, grammar, speaking practice, and short readings into one calm learning path. START WITH THE SOUNDS Explore the four tones, 23 initials, and 24 finals. Tap any sound or example to hear Mandarin audio, then use the tone quiz to check what you recognize. BUILD A PRACTICAL FOUNDATION Work through 30 units with 959 words, lesson texts, short readings, and quizzes. Review 141 grammar points with examples when you need a clearer explanation. SPEAK, LISTEN, AND RESPOND Practice 26 useful phrases and 13 dialogue scenes. On iPhone or iPad, choose the microphone to receive transcription-based, character-level feedback on a phrase you say. KEEP CHINESE CURRENT Browse 28 slang terms and memes, 50 short stories, and 50 original fictional mini-news items created for reading practice. MADE FOR MORE LEARNERS The interface and learning content are available in English, Korean, Japanese, Thai, German, and Russian. Current version: free, with no ads, account, subscription, or in-app purchase. An internet connection is required to load lessons and media.