Beta underway · Cohort 001 in testing · Public launch coming soon
TIMED FUELLING FOR PEOPLE WHO TRAIN WITH INTENT

You track everything.
Your plate is still a guess.

KEXBI turns your body, your training and your food into a daily fuel plan, timed to the workout ahead.

Free for your first week · Then a subscription, cancel anytime · iOS 26+ · Launching September 2026
Someone checking their KEXBI plan after a run by the track KEXBI Fuel Clock, a timed plan
Connects with
Works with Apple Health
Oura
Whoop
WHAT IT'S FOR

The results you're training for.

The PB you keep just missing. The body comp you're working toward. The energy for everything after training. Get the fuelling right, and the training you already do starts showing up.

CHRONONUTRITION

Anyone can hand you a number. KEXBI tells you when.

Other apps hand you one daily number and leave the rest to you. KEXBI schedules your food around your training, from the meal before to the refuel window after. Then it scales back when you rest. Same food, timed around training. That is chrononutrition.

Fuelled to build

Train hard on too little and your body stops adapting. KEXBI puts enough behind hard training to build on.

Strong to the last rep or mile

Fuel lands before the fade sets in. You finish with something left.

NO COUNTING

We did the counting. You just eat.

Most apps give you a number and make you count your way to it. KEXBI turns that number into real meals, portioned and timed around your training, so it already adds up. Nothing to tally, nothing to log: you just eat. Weigh in regularly and let the trend keep it honest. You stay in control: swap a meal, change a portion, or log more detail when it matters.

PLAN THE WEEK, ADAPT THE DAY

Wake up. It's already sorted.

Plan your whole week in about fifteen minutes, prep it in one go if you like, then let KEXBI adapt a day only when your body changes.

The Fuel Clock. Your whole day at a glance: how to fuel, and when.

Every day built around your training

Your fuel is never a flat daily number. A hard workout and a rest day should not land on the same plate, and KEXBI treats them differently.

Built from your own kitchen

Every meal comes from the food you already have, chosen to fit the day's training and the way you cook.

It adapts when your body does

When a workout runs long or last night's sleep lands short, KEXBI flags the day. One tap shifts your fuel to match the work you actually did.

ENERGY THAT LASTS

Fuelled for the day, not just the workout.

You don't train for the gym. You train for the day it has to carry: the back-to-back meetings, the 3pm that used to flatten you, the evening you still want something left for. KEXBI fuels the work and the life around it, so you stay sharp long after training is done.

WHY KEXBI

Calories aren't enough information.

Most apps hand you a calorie target. KEXBI is built on a fuel database drawn from validated national food databases. Each food is scored for how fast it digests, measured raw and cooked, and matched to the part of the day it best suits.

You get meals from your own kitchen, not a macro puzzle dressed up as advice. Open the app, and the day's training is already in the food.

BUILT TO BE CHECKED

Every number has a trail.

The plan is checked against 364 evidence-based rules from 89 peer-reviewed sources, each traceable to its origin. But you never have to take that on faith: open today's plan, tap breakfast, and see why it landed there.

IS THIS FOR YOU?

Built for people who train with intent.

KEXBI is for people who train consistently, care about the outcome, and want the food to match the work.

Built for you if

  • You train 4–6 days a week and take fuelling seriously
  • You already track sleep, strain, or recovery
  • You've outgrown calorie counters and want precision, not averages
  • You want structured guidance, not generic suggestions

Not for you if

  • ×
    You want a basic calorie counter and a rough plan
  • ×
    Your training days all ask the same thing
  • ×
    You're after a family meal planner
  • ×
    You want a crash diet or a quick fix
WHY I BUILT IT

I train hard, and I had every number: sleep, strain, weight, every macro. I still didn't have the one answer that mattered: what to eat today to make the work count. Nothing joined the data to the plate, so I built the thing I needed. KEXBI is that answer, for everyone who trains with intent and wants the effort to show.

Ben Fairburn · Founder
FROM THE BETA
Luke Masters, personal trainer and KEXBI beta tester
Cohort 001, three weeks in
“Even though I'm eating noticeably less I'm full and have a lot of energy still. No dip in performance in the gym, if anything it's improved.
Luke MastersPersonal trainer · Cohort 001
Same training, eating to the plan rather than a flat daily number. His food changes with the training day.
PLANS

Two ways to fuel.

Build is the complete plan that adapts around your life. Peak adds everything for endurance and event training.

KEXBI Build
£11.99 / mo

The complete plan that adapts to your life.

KEXBI Peak
£22.99 / mo

For events, and the full detail.

BETA UNDERWAY

Be first when KEXBI opens up.

Cohort 001 is in testing now. Join the list for early access before public launch, and we'll email you the moment your place is ready.

See how it works

You do the work. We handle the fuelling.

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