Prof. Mruk, a 3D ginger-tabby fitness coach

The coach who remembers you.

Most apps make you log, then leave you to figure it out. Mruk reads your own weigh-ins and meals, tells you what today should look like, and explains why — with the science to back it. No spreadsheets. No re-explaining yourself. Your numbers stay yours.

Soon Download on the App Store Get the beta now →

Why Mruk

You've tried the trackers. They forget you by week three.

Every other app

  • You log for three weeks, then stop — it never told you what to do.
  • The "coach" doesn't remember your last message.
  • You re-explain your whole situation every single time.
  • One static target that ignores how your body actually responds.
  • Your weight and bloodwork quietly feed someone's ad graph.

Mruk

  • Opens to what today looks like — calories, protein, the next move.
  • Remembers your trend, your plan, your readiness, your last excuse.
  • Knows you already. You never start over.
  • Adaptive math that re-tunes to your real weigh-in trend each week.
  • Your numbers never leave your account. No ads, ever.

What that actually means

It remembers you

Your trend, your plan, your last conversation — all of it carries over. Ask a question and the answer already accounts for your week. No re-explaining, no starting from zero.

It cites the science

Every answer is grounded in your own data and the actual evidence behind the advice — graded, not guessed. You get the number and the why, in plain language.

It won't let you do anything stupid

Honest math with hard safety floors: no crash diets, gentle check-ins when something looks off, and a clear "see your GP" when it matters. A companion, not medical advice.

"You're down 0.4 kg on the trend this week — right on pace. Sleep dipped, so today's an easy one: hit 150g protein, skip the extra session. We're not in a hurry."

— Prof. Mruk, reacting to your data, not a template

Better with your person

You don't quit on your partner.

Do it together — your partner, or a crew of friends. You see who showed up and whose streak is alive — effort only, never numbers. Your weight, your food, and your bloodwork never leave your account. That isn't a setting you have to find; it's how the app is built.

  • Morning weigh-in that reads the trend, not the noisy daily number
  • One calm screen: food, water, and a short checklist
  • A streak on your Home Screen and Lock Screen
  • Shared effort with your people — measurement stays private
  • No ads. No selling your data. Sign in with Apple.

Get started

Stop guessing. Just show up.

Mruk is in private beta on TestFlight, with the App Store to follow. Get an invite and start training with a coach that already knows you, tells you the truth, and won't let you do anything stupid.

Request a beta invite →