Project
An Android app for personal trainers to run sessions on the gym floor: one trainer, many clients, every set and weight logged, progress and personal bests calculated, and nothing leaving the device.
Personal training business · Fitness · personal training · 2026
We turned a four-screen design handoff into a complete offline Android app that trainers use between sets: build a session, log what was actually lifted, and see each client's numbers move.
The challenge, how we approached it, what we built and the results, in detail.
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Talk directly with the senior engineer who would design and build it.