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Rubber Duck LLC
A small studio building useful apps.
Independent. Built by people who'd rather ship one thing well than ten things halfway.
Apps
DuoMate In development
Learn a language by actually using it — conversation-first practice with AI partners now, native speakers when you're ready. Built for the in-between learners textbooks leave behind.
WitsEnd
The AI-judged party game where wit wins. Quick prompts, sharper answers, no waiting for a human to decide whose joke landed.
About
Rubber Duck LLC is a one-person studio. We focus on tools that pay off the time you spend with them — no engagement-maxing, no dark patterns, no ads.