New Delhi, May 1 -- Stimuler, a voice-first AI tutor designed for English-as-a-second-language (ESL) learners, has raised $3.75 million in Pre-Series A funding. The round was led by Lightspeed and SWC Global, with participation from MVP, Rebright, Force Ventures, GradCapital, and Operators Studio.

The funding will help scale Stimuler's AI capabilities, expand its technical team, and accelerate global growth, especially in Latin America (LATAM) and Southeast Asia (SEA). The company aims to increase monetization by over 5X in the next 12-18 months, targeting the #1 spot among education apps in these regions.

Built in India for the world, Stimuler is transforming how users learn to speak English using advanced voice AI. The app has surpass...