FLEX

Train, eat, and recover β€”
all in one place

1,300+ exercises, a routine and meal plan built around you, WHOOP-style Recovery, Sleep and Strain scores, and an AI coach that already knows your numbers.

No account required Β· Works offline Β· Completely free

No account required

Every feature works offline, on your device, from the first tap.

Your data stays yours

Sign in only if you want cross-device sync. It never becomes a requirement.

Real formulas, not vibes

Mifflin-St Jeor, Tanaka, Edwards’ TRIMP β€” published methods, always disclosed.

Completely free

No subscription, no paywall, no ads gating a feature.

Snap it, don't type it

Take a photo of your meal.
Get the calories back.

Point your camera at a plate and the app identifies the food and estimates its calories and protein β€” no searching a database, no weighing, no guessing portion names. Can't photograph it? Type the name instead and get the same estimate.

  • Works on home-cooked and local dishes, not just packaged food
  • Every estimate carries a confidence rating β€” low means treat it with suspicion
  • One tap adds it to your running daily total
Try the food scanner β†’
Photographing a plate of food with a phone

Grilled chicken & rice

High

540

kcal

42g

protein

Lifting a barbell in a gym

Train

Plan a week, log what you actually did

Generate a routine from your goal, level, and available equipment β€” or build one by hand. Log sets one-handed between reps with a rest timer and a suggested weight carried over from last time.

  • Auto-generated or hand-built weekly routines
  • One-handed logger with an automatic rest timer
  • Streaks, a calendar heat-map, and personal bests
Browse workouts β†’
Working out with focus on form

Learn

1,300+ exercises, properly explained

Every exercise has an animated demo, numbered instructions, and Guided Mode β€” a step-by-step player that reads each step aloud and keeps your screen awake mid-set. MMA fundamentals get the same treatment.

  • Guided Mode: hands-free, voice-narrated steps
  • Filter by name, body part, equipment, or muscle
  • 32 MMA techniques across four categories
Search the catalogue β†’
A fitness tracker worn on the wrist

Health

Recovery, Sleep, and Strain from your own wearable

Modeled on published sports-science methods, never an invented heuristic β€” and each one says so. An RHR-and-sleep readiness score, a four-part sleep score, and TRIMP-based Strain from real heart-rate zones.

  • Recovery, Sleep, and Strain with 30/60/90-day trends
  • Hydration tracking across water, tea, coffee, and juice
  • Opt-in cycle tracking with phase-aware suggestions
See the health dashboard β†’
A cooked meal of grilled meat and vegetables

Nutrition

Real targets, and a plan you can actually cook

Mifflin-St Jeor plus your activity level sets a genuine calorie and macro target β€” not a round number someone guessed. The meal plan is built from real Bangladeshi dishes, swappable ingredient by ingredient.

  • TDEE-based calorie and macro targets
  • Swap any ingredient β€” quantities recalculate for you
  • A 7-day plan with an aisle-grouped shopping list
See the diet planner β†’
Checking a fitness app on a smartwatch and phone

Only on mobile

Your 24/7 AI health coach

The app doesn't wait for you to open it. It watches your sleep, water intake, workouts, and diet in the background, and reaches out on its own β€” a briefing to start the day, and a note before bed.

  • Smart water reminders

    Nudges tuned to your goal and how far behind you are today β€” they quiet down the moment you catch up, not on a fixed timer.

  • Morning & night check-ins, automatically

    Your 24/7 AI health coach β€” it tracks your sleep, water intake, workouts, and diet, then messages you on its own before you even open the app.

An AI coach that knows your numbers

Every message carries a summary of your real profile, sessions, weight trend and diet β€” so you never have to explain your own data. Attach progress photos for visual feedback.

Ask the coach β†’

Friends, and one honest leaderboard

Connect with a shareable invite code β€” no directory, no search. A weekly average-Strain leaderboard with the people you actually added, and nothing more shared than that.

See how it works β†’

Your data, exportable

A PDF summary of your Recovery, Sleep, Strain and workouts for any 30, 60 or 90-day window β€” built entirely on your device, uploaded nowhere.

See export β†’

Ready to start?

No sign-up screen, no credit card, no waiting β€” jump straight into your dashboard.

Get Started β€” it's free