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Life & fun · August 14, 2025

Onyx Coach

Workout tracker

Onyx Coach launched on August 14, 2025 with 13 votes, #983 of 8,530 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 1 year on.

What it does

Gym workout tracker and exercise planner | Strength training log - Build muscle

Coach in-person and online clients in one platform. Build programs, log sessions live, track every client

One app for you, one for your clients. Everything you write in yours shows up in theirs. Tap the set, type the weight, move on. Two clients can stay open at once. Last week's numbers and the rest timer are on the same screen. Ask in plain language. It builds the plan inside your workspace. "Write Marek a four-week lower body block." It reads his history and builds it. Write Marek a four week lower body block from what he did last cycle. Done. Based on Marek's last 8 weeks (squat 3×8 at 82.5 kg, RDL 3×10 at 90 kg), here is a 4 week block with a 2.5 kg step each week and a deload in week 4. Film an exercise. It names it, describes it and tags the muscles. Bar on the upper back, brace, sit…from onyxcoach.com

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