SaaS · Multi-PlatformTimeline: Ongoing · multi-platform product
RapTrans
AI-powered listening training for language learners with cross-device sync and smart grading
SaaSAI SpeechMulti-Device
500K+
Active users
100K+ items
Content library
99%
Recognition accuracy
Background
Language learners lacked efficient listening tools — traditional dictation was slow, limited, and hard to stick with.
Core Challenge
Language learners lacked efficient listening tools — slow feedback, scattered content, and no seamless cross-device progress hurt retention and conversion.
Our Approach
Unified multi-platform architecture (Web + desktop + tablet) with AI speech recognition at the core, a large content library, local import, and a listen-write-grade-review loop with cloud sync.
What We Did
- ·Built a multi-platform listening training system for Web, desktop, and tablet
- ·Integrated AI speech recognition with 99% grading accuracy
- ·Created a massive content library with local import and multi-language support
- ·Implemented real-time cross-device sync and progress tracking
Tech Stack
Next.jsElectronNode.jsPostgreSQLAI Speech
Outcome
500K+ active users, 100K+ content items — a leading tool in language listening training.