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A product of our own · for personal trainers: MuscleScope

A mobile-first platform for personal trainers: clients, programmes, workout logging and check-ins, with an interactive muscle map that shows what was trained and what is neglected.

LiveAt musclescope.com · installable, works offline

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Built with

Application
Next.js, with PostgreSQL and a typed query layer
Body map
Rendered in the browser, coloured live
Before release
Unit and end-to-end suites
  • Next.js
  • React
  • TypeScript
  • PostgreSQL
  • Drizzle ORM
  • Stripe
  • Three.js
  • Playwright

01What it does

A product of our own. A trainer manages every client, programme, workout and check-in from a phone, and the differentiator is the muscle map: tap a client's body and see what has been trained, what has improved, what hurts, what is being neglected and what to train next.

Underneath it is a workout logger and an exercise library, weekly check-ins, compliance and strength analytics, and client reports generated as PDFs. Studios with several trainers share a client base. Billing runs through subscription tiers with usage limits, and trainer payouts through the same payment provider.

  1. 01Clients, programmes, workouts and check-ins, from a phone
  2. 02A workout logger and an exercise library
  3. 03Weekly check-ins, with compliance and strength analytics
  4. 04Client reports generated as PDFs
  5. 05Studios with several trainers share a client base
  6. 06Subscription tiers with usage limits, and trainer payouts

02Works offline in the gym

It is installable as a progressive web app and works offline, because gym basements have no signal. The interactive body map is rendered in the browser rather than served as images, so it can be coloured live by whichever measure the trainer is looking at: load volume, strength, soreness, pain, recovery or symmetry.

Prices for MuscleScope are on musclescope.com.

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ServiceCustom software and platforms
  1. 01What it does
  2. 02Works offline in the gym
  3. 03How it is built

03 · How it is built

How it is built

The stack is deliberately boring and self-hosted: a Next.js application, PostgreSQL with a typed query layer, storage and authentication in the same stack, and unit and end-to-end suites that run before anything is deployed.

  • Next.js
  • React
  • TypeScript
  • PostgreSQL
  • Drizzle ORM
  • Stripe
  • Three.js
  • Playwright
Illustration.

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