viviTalk - AI Speaking Coach

Welcome to viviTalk — ready to start a fresh kind of speaking adventure?
viviTalk is an AI speaking practice app designed to break away from traditional language learning and solve the classic problem of “I understand it, but I can’t speak.” It supports English, Chinese, Japanese and Korean for cross-learning, and uses innovative AI scenario-based conversations to help you speak up confidently in real, fun, and engaging situations.
Whether you’re preparing for an overseas trip, handling business communication, or simply aiming to become more fluent, viviTalk is your reliable speaking coach. With immersive life-story scenarios and map-based scene courses, we create a realistic, highly immersive speaking practice experience. We also bring together real-time speaking assessment, smart corrections, pronunciation support, photo-based vocabulary learning, and study/review tools—so you can build a complete learning loop step by step: Input → Practice → Correct → Review → Improve.

【Core Features】
1.Story-driven Speaking
Turn speaking practice into a chapter-by-chapter life story. Your choices shape the plot, unlocking new branches as you speak.
2.Map & Level-based Courses
Learn through vivid scene maps and clearable levels (travel, daily life, work). Each level mixes role-play, visual vocab, practical phrases, and situational Q&A.
3.AI Speaking Interaction
An AI engine that plays different roles, understands your input, and replies naturally by context—voice or text, smooth and immersive.
4.Real-time Feedback
Instant scoring plus grammar/vocabulary correction with explanations—build accurate speaking habits fast.
5.Learning Reports
Session summaries + performance review. Story mode: vocab & patterns used. Map mode: 5-dimension evaluation (fluency/grammar/vocab/appropriateness/task completion).
6.Support & Hints
Translation/replay/hide-text tools + hint button. Also supports native-language input that converts into the target language, so you never get stuck.

【Product Highlights】
（1）Gamified learning: Map + missions instead of boring drills.
（2）Easy UI: Clean, intuitive, beginner-friendly.
（3）Privacy first: Encrypted, minimal-data design.
（4）Cute dog companion: Practice more, your dog “gets longer.”
（5）Scientific learning loop: Input → output with strong support (hints, instant feedback, native-language assi