Onsen is a mobile AI companion built around mental and emotional wellbeing. The app offers 24/7 conversational support in a private, non-judgmental setting where users can talk about stress, grief, anxiety or everyday worries. Rather than a single chatbot screen, Onsen blends several modes of reflection: a chat experience, guided sessions that adapt to the user's patterns, an AI journal that turns conversations into written entries with mood analysis and generated artwork, and hands-free voice conversations.
What sets Onsen apart is the structuring of emotional work into something trackable. Mood check-ins feed personalized recommendations, journal entries accumulate into a running narrative, and the app publishes outcome data from its own user assessments suggesting improvements in mood and stress over time. The tone throughout is deliberately warm and low-pressure, aimed at people who want support between therapy sessions, cannot currently access a therapist, or simply prefer to reflect privately.
Onsen is free to download and use, with no credit card required, and adds optional paid features on top. It is available for mobile and also works across devices. It is a wellbeing aid rather than a clinical service, so it complements rather than replaces professional mental healthcare.
