Seren

Seren is an AI chat journal that lets people record their thoughts by voice or text and then talks back, asking follow-up questions to help them explore their emotions and daily experiences in more depth. Instead of a blank page, users get a conversational partner that responds in the moment, turning journaling into a dialogue rather than a monologue. The app lets users choose the tone of their AI companion — options include therapist, coach, optimist, and realist — so the conversation style matches what the user needs on a given day. Under the hood, Seren uses retrieval-augmented generation to pull from a user's own past entries, so its responses can reference earlier reflections and build a more personal, ongoing record over time. Conversations are encrypted to keep entries private. Seren is built for people who want a low-friction way to reflect regularly, whether to de-stress, process emotions, or build a journaling habit. It is available on iOS and Android. Because entries and companion responses come from an AI model, some users may find the reflective prompts feel less personal than journaling with an actual person.