DeepSonda is a relationship-neutral app for building genuine closeness through structured, reciprocal self-disclosure, based on the mechanism behind Arthur Aron's 36 Questions study. Its Reciprocity Gate keeps both people's answers sealed until each has written their own, then reveals them together, removing the fear of being the only one who opened up. A private solo "Know Yourself" mode lets anyone journal through the same question corpus alone, and a per-question Depth Dial with tiered, ordered escalation lets each pairing control how far and how fast it goes. User-authored questions and a corpus rating system keep the question set improving over time. It is a React web app with Clerk auth and a Turso database, localized into five languages.
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