Work · Fitness · AI app
Mi Rutina
An AI-built gym plan that adjusts itself every week, plus a portal for trainers to follow their athletes.


Overview
Mi Rutina builds your gym plan with AI and adjusts it every week based on how it went. You answer eight questions and get a plan with exercises, sets and starting weights.
On each exercise you tap Easy, Just right or Missed, and on Saturday the reps or the weight go up. Weights come from fixed rules, not from the AI: the AI swaps an exercise that has stalled for weeks or that bothers you, sums up your week and answers mid-session. If you train with someone, your trainer builds the plan in their portal and gets everything you log and note.
Features
What it does.
AI plan
Eight questions (goal, days, time, place and aches) and your week comes out with exercises, sets and starting weights.
Adjusts every Saturday
Easy, Just right or Missed. Reps go up first and, at the top of the range, the weight, with fixed rules.
Trainer portal
All their athletes on one screen, a workout editor and every session’s marks and notes, also by email.
Mid-session assistant
Machine taken? It knows today’s workout and swaps an exercise or adjusts the weight on the spot.
At the gym
170+ exercises with GIFs, a rest timer that starts itself and your progress on every lift, week by week.
Light or dark
A violet design that follows the iPhone’s mode. Installable PWA, no app stores.
How it works
From start to finish.
Eight questions
Goal, days, time, place and what bothers you.
PWAAI plan
Claude builds your week with exercises, sets and starting weights.
ClaudeAt the gym
You tap each exercise: Easy, Just right or Missed.
Worker API · KVEvery Saturday
Fixed rules raise reps or weight; the AI sums up the week.
Cron triggersYour trainer
Gets your marks and notes in their portal and by email.
Email
Screens
How it looks.
Tech specs
How it is built.
Frontend
- HTML/CSS/JS
- PWA + Service Worker
- Light and dark mode
Backend
- Cloudflare Workers
- KV
- R2
- Cron triggers
AI & build
- Claude Sonnet 5
- Claude Haiku 4.5
- Playwright
- Remotion
Integrations
- Claude API — builds the plan, sums up the week and answers in the chat
- Cron triggers — the automatic Saturday adjustment
- Email — trainers get every session’s marks and notes
- Remotion — Instagram carousels for marketing
Method
- Fixed, auditable progression rules; the AI only proposes exercise swaps and explains the week · custom AI agents (a trainer with athlete memory, an app designer) · visual audits with Playwright screenshots · a Remotion marketing pipeline.
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