ELSA Corp

ELSA uses proprietary AI speech recognition trained specifically to detect pronunciation errors at the phoneme level, giving learners instant, granular feedback on their spoken English – a level of precision generic speech-to-text tools cannot provide. The app adapts practice content based on each user’s specific error patterns over time.

Having scaled to tens of millions of users across 100+ countries, ELSA represents one of the clearest examples of a Vietnamese-founded deep-tech AI product competing globally rather than only in its home market, including B2B licensing deals with schools and language training centers.

1. Phoneme-level AI pronunciation detection
2. Personalized practice based on error patterns
3. Real-time speaking feedback
4. B2B licensing for schools/training centers
5. Multi-accent recognition support
6. Progress tracking analytics