Your health engineer, on WhatsApp

Stop guessing what to eat.

Text it like a friend. It knows your targets, your watch, your glucose and your day, picks your next meal, and orders it on Swiggy when you say yes.

Join the beta on WhatsApp

Free during the beta · No app · Takes 5 minutes to set up

Prashant Singh, founder
“I built it because I was tired of guessing. I use it for every meal.”
— Prashant Singh, founder
Longevity Engineer · onlineExample
  1. Calls till 1. What do I order?
  2. Dal chawal with a paneer side from your usual place, arriving 1:05. About 520 kcal and 34 g protein, which closes today's gap. Reply order.
  3. order
  4. Order placed after your yesDal chawal + paneer side · ₹320 · Arriving 1:05 pm · logged to today
  5. 3 hours later
  6. Lunch: glucose from 96, rose 24 at 40 min, back by 1 h 40 m. Added to your food library.

Works with

  • Apple Watch
  • FreeStyle Libre
  • Google Calendar
  • Swiggy
  • InBody reports
  • Here's the menu, what do I get?
  • Photo of my thali, how much should I take?
  • Skipped breakfast, fix my day
  • Had 2 rotis and dal
  • How much protein is left today?
  • How did yesterday's dinner do for my glucose?
  • Gym at 7 tomorrow
  • I'm Jain, no onion or garlic

Ask in English or Hinglish, by text, photo or voice note.

How it works

Text. It decides. You eat.

  1. Say hi

    A five-minute chat sets your goal and food rules. Connect your watch, glucose sensor or calendar whenever you like.

  2. Ask, or get pinged

    Ask when you're hungry, send a menu photo, or let it message you before your lunch gap.

  3. One clear pick

    One dish, with the numbers and the reason. Swap it if it's not right. It asks before ordering anything.

Why not just ask ChatGPT?

Generic advice doesn't know your day.

A chatbotA diet chartLongevity Engineer
Knows what you ate todayOnly if you tell it, every timeNoYes, from photos, voice and picks
Reads your watch and glucoseNoNoYes, automatically
Messages you at the right timeNo, you have to askNoYes, timed to your calendar
Picks from the menu in front of youSometimesNoYes, one dish with numbers
Orders it for youNoNoYes, on Swiggy, after your yes
  • Knows what you ate todayYes
  • Reads your watch and glucoseYes
  • Messages you at the right timeYes
  • Picks from the menu in front of youYes
  • Orders it for youYes

A chatbot or a diet chart does none of these on its own.

With a glucose sensor

See what food does to you.

Every meal is matched to your glucose. Eat a dish twice and you see your typical response, not someone else's.

Your dishTimesTypical rise
Paneer tikka bowl3+18
Dal chawal4+24
Rajma chawal2+38

Example. Numbers only, never verdicts.

It comes to you

A day with your engineer.

  1. A short brief after you wake: sleep, yesterday, and what matters today.

  2. One lunch pick, sent before your meeting gap.

  3. Workout synced from your watch. Dinner can be a little bigger.

  4. Sunday

    Your week in six lines, and one thing to try next.

Prashant Singh, founder of Longevity Engineer

“I spent years scaling delivery at Zomato and knew what I should eat, yet still guessed at every meal. So I built the engineer I wanted: one that knows my day and just makes the call. I use it for every meal.”

Prashant Singh, founder · IIT Delhi, IIM Calcutta · Gurgaon

FAQ

Before you ask.

Is it a doctor or dietitian?

No. It's food and habit guidance for adults, not medical advice. It never suggests crash diets and won't advise on medicines.

Does it order without asking?

Never. It shows the exact cart, price and address, and only places it when you reply yes.

Do I need a watch or a glucose sensor?

No. It works with just WhatsApp. Each device you connect makes the picks sharper.

Vegetarian, Jain, eggetarian?

Tell it once. Your food rules and allergies are checked before every pick.

What happens to my data?

It's used only to help you, never sold, and there are no ads. Disconnect anything any time; full data deletion is coming very soon.

Why WhatsApp?

It's where you already are. Nothing to install, nothing to remember to open.

Take the thinking off your plate.

Your next meal, decided. Invite-only beta, free while it lasts.

Join the beta on WhatsApp
Join the beta on WhatsApp