UnderSurface

What it does

UnderSurface is a journaling app where inner voices respond to your writing in real time. You type. You pause. An inner part reacts. It may notice what you're avoiding, sit with you in discomfort or connect dots you haven't seen yet. It's not a chatbot or a therapist. It's a writing companion. It works in any browser and is multilingual. Strict privacy, export and account controls. Built as a solo project because I kept abandoning my own journal entries the moment they got real.

A private reflection session that remembers what matters

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  Hi HN! I just launched Rocket Journal, a voice-first journaling app designed to make reflection as easy as talking. Key ideas: Rant mode — vent freely, no judgment Reflect mode — guided prompts to help dig deeper AI insights — mood tracking, patterns, helpful takeaways Stickers & scrapbook — journaling feels lighter and fun Privacy-first — your data isn’t used to train models I built this because journaling apps often feel like “work.” I wanted something that felt like having a safe, responsive companion for those late-night thoughts or walks outside. I’d love feedback from the HN community:…

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