FitGuru: Building a Private, On-Device AI Workout Coach in Kotlin(Multimodel AI)
published: false description: "We built a phone-side workout coach at Innovhacks 4.0 - MediaPipe pose, joint-angle state machines, Gemini debriefs, and ElevenLabs voice - without sending your camera feed to the cloud." tags: ai, genai, agentaichallenge, kotlin cover_image: FitGuru: A Phone That Coaches Your Squat - and Never Uploads the Video Innovhacks 4.0 · Team ARKA · Android (Kotlin) ·…
At Innovhacks 4.0, Team ARKA developed FitGuru, a phone-side workout coach that analyzes form and provides real-time feedback without sending video data to the cloud. The app uses on-device AI to count reps, give cues, and review workouts after completion. Built using Kotlin, MediaPipe Pose for pose landmark extraction, and Gemini 2.5 Flash for debriefing, FitGuru demonstrates that a phone can effectively coach users without compromising privacy or performance.
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