Behind the Agent: How Learna Scales Voice Learning with ElevenLabs

Language learning only works if it sounds real. For Learna, getting voice right was critical. Learna puts users in FaceTime-like conversations with an AI tutor, and the quality of that voice directly determines whether users stick around and pay. After running a live A/B test against their legacy TTS system, the results were clear: 9% uplift in trial conversion and 11% uplift in lifetime value. In this session, their team walks through how they think about voice as a growth lever - across multiple languages, multiple apps, and multiple use cases. You'll walk away with: - How voice quality directly impacts conversion and LTV - and how to test for it - What it takes to scale natural, low-latency voice across Spanish, Turkish, Arabic and beyond - How Codeway built a shared voice infrastructure across a multi-app portfolio