About Fettle

HOW IT WORKS

Built by a pharmacist. Run by an engine.

Guidance first. Tracking second.

Fettle is a UK company with one conviction: nutrition plans fail because they stay still while bodies change. So we built one that doesn’t.

Most apps ask you to log everything, then leave the hard decisions to you. Fettle works the other way round: it decides upfront, adapts weekly, and uses tracking only to refine.

Founded in the UK

Pharmacist-led

Launching early 2027

The story

The same conversation, every week, at the pharmacy counter.

Fettle started behind the counter of a community pharmacy. Week after week, the same pattern: people doing everything their plan asked — logging meals, hitting targets — and stalling anyway. Then blaming themselves.

The problem was never discipline. A target calculated in week one describes a body that no longer exists by week six. Every tracker on the market recorded the stall; none of them did anything about it. So we built the tool we couldn’t recommend to patients — because it didn’t exist: a system that recalculates weekly, explains every decision, and finishes the job at the checkout.

Founder

Daniel Cheung, MPharm

Practising UK pharmacist and pharmacy owner. Daniel runs weight-management and GLP-1 services in his pharmacy — Fettle is the nutrition system he built because his patients needed one that adapts, explains itself, and doesn't demand perfection.

Founder

Daniel Cheung, MPharm

Practising UK pharmacist and pharmacy owner. Daniel runs weight-management and GLP-1 services in his pharmacy — Fettle is the nutrition system he built because his patients needed one that adapts, explains itself, and doesn't demand perfection.

The team behind the Engine

Clinical judgement, encoded. Engineering, supervised.

Sports Nutrition · Adaptive Engine

Simone Pigliapoco, MSc, PGDip

• Registered Sport & Exercise Nutritionist • 15 years in the fitness industry • Wrote Fettle's nutrition decision logic • Weight management, body composition, performance

Sports Nutrition · Adaptive Engine

Simone Pigliapoco, MSc, PGDip

• Registered Sport & Exercise Nutritionist • 15 years in the fitness industry • Wrote Fettle's nutrition decision logic • Weight management, body composition, performance

Sports Nutrition · Adaptive Engine

Simone Pigliapoco, MSc, PGDip

• Registered Sport & Exercise Nutritionist • 15 years in the fitness industry • Wrote Fettle's nutrition decision logic • Weight management, body composition, performance

Engineering

Oliver Lamming, MA (Cantab)

• Founder and CTO of CatchApp • Founder and CTO of AppChocolate • Founder & CTO of MagicSolver Built Apps with 50m downloads

Engineering

Oliver Lamming, MA (Cantab)

• Founder and CTO of CatchApp • Founder and CTO of AppChocolate • Founder & CTO of MagicSolver Built Apps with 50m downloads

What we believe

Three principles we won’t trade away.

Explain everything

If the Engine changes your targets, you see why. Health tools that act silently teach helplessness; ones that show their reasoning teach you how your body works.

Explain everything

If the Engine changes your targets, you see why. Health tools that act silently teach helplessness; ones that show their reasoning teach you how your body works.

Protect, don't punish

Period weeks, messy data, life happening — the Engine holds and protects rather than slashing calories. Sustainable beats severe, every time.

Protect, don't punish

Period weeks, messy data, life happening — the Engine holds and protects rather than slashing calories. Sustainable beats severe, every time.

Protect, don't punish

Period weeks, messy data, life happening — the Engine holds and protects rather than slashing calories. Sustainable beats severe, every time.

You're the customer

No ads. No selling your data. Fettle is paid for by subscription so the only person we answer to is the one using it.

You're the customer

No ads. No selling your data. Fettle is paid for by subscription so the only person we answer to is the one using it.

Feature Image

Where we're going

From plan, to plate, to checkout.

Fettle launches in early 2027 on iOS and Android, with grocery fulfilment in one tap. From there: family meal planning, more supermarkets, creator recipes, and smarter health sync. Early users shape the order we build in.

Feature Image

Where we're going

From plan, to plate, to checkout.

Fettle launches in early 2027 on iOS and Android, with grocery fulfilment in one tap. From there: family meal planning, more supermarkets, creator recipes, and smarter health sync. Early users shape the order we build in.

FETTLE

Come see what adaptive actually means.

First month free. Every decision explained.

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FETTLE

Come see what adaptive actually means.

First month free. Every decision explained.

Image

FETTLE

Come see what adaptive actually means.

First month free. Every decision explained.

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©2026 Fettle Fitness Ltd · Registered in England & Wales · Fettle® is a registered trade mark of Fettle Fitness Ltd (UK00004371666)

©2026 Fettle Fitness Ltd · Registered in England & Wales · Fettle® is a registered trade mark of Fettle Fitness Ltd (UK00004371666)

©2026 Fettle Fitness Ltd · Registered in England & Wales · Fettle® is a registered trade mark of Fettle Fitness Ltd (UK00004371666)