ELSA Speak
Pronunciation and accent coaching for English
We publish a full Four-Mismatches fit assessment for the student-facing exam tools first. For this one, the facts below are what we have verified — run the Four Mismatches Test on it yourself for your own students.
Independence: Addestra builds learning products too (MathsTutor, TinkerWell). We never review or score our own, and no tool pays to be listed or to rank higher — how we assess fit.
What it does
What the AI actually does — A proprietary speech-recognition model trained on accented English scores pronunciation at the phoneme level and gives targeted correction.
Why it was built — Help non-native speakers sound clearer and more confident in English by fixing pronunciation, which generic apps ignore.
Who built it
- Company
- ELSA Corp.
- Founders
- Vu Van · Xavier Anguera
- HQ / origin
- San Francisco, USA (engineering in Lisbon)
- Founded
- 2015
- Model
- B2C / B2B
- Languages
- English (for non-native speakers)
- Pricing
- Freemium subscription + B2B licensing
We record durable facts only — no funding-raised or user-count figures. Unverified fields are marked [TBD] rather than guessed.
Where it sits
ELSA Speak is on the EdTech AI 100 map, in language learning, built in United States.