CoreTrak360
GLP-1 COMPANION

Medication creates the opportunity.
Habits decide whether you keep the weight off.

CoreTrak shows your real calorie balance — so you lose fat, protect muscle, and understand what's actually working.

No ads. No clutter. No distractions.

Built from an 80 lb weight loss journey
Start Free → See your numbers in 60 seconds See how it works

Free to start · No download required · No card required · No ads

Featured in UK national press

This is what other apps don't show you
Calories in vs calories out — clearly shown, every day
CoreTrak daily snapshot — real calorie balance
No ads
Free to start
GLP-1 safety guardrails built in
No streaks. No gamification.
Add to home screen in seconds
The real problem

Most tracking apps don't solve
the real problem

They were built for people who overeat — with calorie budgets and food databases designed for a problem that's the opposite of yours. If you're on GLP-1, barely eating, and quietly losing muscle, these apps weren't built for you.

They focus on calories only. They ignore protein and muscle loss. They leave you to figure out what the numbers mean — surrounded by ads and noise.

They help you log food — but don't help you keep the weight off.
GLP-1 helps you lose weight. It doesn't teach you how to keep it off.
🧮

Focus on calories only

GLP-1 users eat far less. Apps built around calorie budgets don't reflect this — and don't surface the metrics that actually matter.

📉

Ignore protein and muscle loss

Rapid weight loss without protein tracking leads to muscle loss — the biggest driver of regain once medication stops.

💧

No hydration tracking

Dehydration is one of the most common GLP-1 risks. Most apps don't track it at all.

📣

Built for logging — not behaviour change

Full of ads, noise, and upsells. Designed to keep you engaged, not to help you build the habits that prevent regain.

The CoreTrak difference

CoreTrak focuses on what actually
drives results

Traditional apps
✗Log calories
✗Track food
✗Show a budget
✗Leave you to figure it out
CoreTrak
Show your real daily balance
Prioritise protein
Track hydration and fibre
Reinforce behaviours that prevent regain

This isn't a food diary — it's a behaviour system.

Start Free →

See your real calorie balance in seconds. No card needed.

What you get free

Everything you need to start — free

The Core plan gives you every tool that matters. No credit card, no time limits, no catch.

⚖️
Free

Real daily calorie balance

Not a budget — a true balance. Resting burn + activity burn − food intake, shown clearly every day.

🥩
Free

Protein-first tracking

Protein is your most important macro on GLP-1. CoreTrak puts it front-and-centre, not buried in a pie chart.

💧
Free

Hydration tracking

One of the most overlooked GLP-1 risks. Log your intake and see at a glance if you're on track.

🌿
Free

Fibre awareness

Gut health matters more than most apps acknowledge. CoreTrak tracks fibre without making it a chore.

✏️
Free

Fast food & workout logging

No endless food databases. Log meals and activity quickly and get on with your day.

🚫
Free

Clean, no-ad experience

Every pixel is focused on your health. No promoted content, no upsell interruptions, no distractions.

Start simple. Build the right habits. Upgrade when you want to go deeper.

Most people stop at tracking. The difference is knowing what to change.

Plans

Core gives you the data.
Trak tells you what it means.

Start free. No commitment. Upgrade when you want to go deeper.

Core shows you what's happening. Trak tells you what to do next.

Core Free

See what's happening

Know your numbers
See your real daily balance
Calories in vs calories out — shown clearly every day
Track what matters
Protein, calories, intake
The habits that protect your results during treatment
Stay consistent
Simple, fast logging
Food, workouts, hydration — no endless databases
Your real calorie balance · Food and workout logging · Protein and intake tracking · Clear daily deficit — no guesswork
Start with Core — free

See your real calorie balance in seconds. No card needed.

Trak Premium

Know what to do next

Used by people who want to do this properly

£ GBP
€ EUR
$ USD
£9.99
per month
or £99.99/yr — save 2 months
€11.49
per month
or €114.99/yr — save 2 months
$12.99
per month
or $129.99/yr — save 2 months
Understand your results
Are you losing fat — or losing muscle?
Functional Age shows whether your progress is actually improving your body
Get clear guidance
What to adjust. What to keep.
Is your deficit actually working? Trak answers that.
See trends over time
Weight, body fat, real progress
Functional Age — a single score across strength, durability, cardiac health, endurance, and body composition. Shows whether you're losing fat or muscle, and whether your body is ageing well or not.
Unlock with Trak →

Cancel anytime.

Core gives you visibility. Trak gives you direction.

Why CoreTrak

How CoreTrak compares

Not retrofitted from a generic fitness app. Built from scratch for this.

CoreTrak MyFitnessPal Lose It!
Real daily calorie balance (not just a budget)✓✗✗
GLP-1 safety guardrails✓✗✗
Designed specifically for GLP-1 users✓✗✗
Protein & hydration as primary focus✓PartialPartial
Ad-free experience✓✗✗
No gamification / streak pressure✓✗✗
Hydration tracking✓✗✗
Functional Age tracking (strength, durability, cardiac, endurance, body composition — shows if you're ageing well)✓✗✗

Most apps track food. CoreTrak tracks what matters.

Trak — exclusive feature

You're losing weight.
But is your body getting healthier — or just lighter?

Most people see the scale go down. What they don't see is whether they're losing fat — or losing muscle.

Functional Age gives you a clear answer: is what you're doing actually improving your body — or slowly breaking it down?

Most people lose weight but lose muscle with it. This shows you if that's happening.

See your Functional Age with Trak →

Upgrade anytime. Cancel anytime.

Unique to CoreTrak360
Functional Age
Strength
Muscle preservation
Durability
Injury resilience
Cardiac
Heart health
Endurance
Fitness & energy
Body Composition
Fat vs muscle ratio
Available with Trak →
Proprietary scoring — only on CoreTrak360
How it works

Three steps to clarity

1

Start with Core — free

No card, no commitment. Sign up in seconds and see your real numbers from day one.

2

See what the numbers actually mean

Not a calorie budget — a true daily balance. Protein targets, hydration, fibre, and GLP-1 checks all in one clear snapshot.

3

Upgrade to Trak when you're ready

When you want trends, coaching feedback, and deeper insight into whether your results are actually working — one upgrade unlocks it all.

Press

Featured in UK national press

Major UK newspapers have highlighted the same concern: GLP-1 users still need protein, exercise, and muscle-preserving habits to protect long-term health. CoreTrak is built around exactly that.

The Guardian
Weight-loss jabs shouldn't be a quick-fix solution, says expert
Concerns raised around muscle loss and poor diet quality if lifestyle habits are not maintained during GLP-1 treatment.
Read article ↗
The Telegraph
How to stop weight-loss drugs ageing you by a decade
Explains how protein intake and resistance training help protect muscle during GLP-1 treatment.
Read article ↗
The Times
Weight-loss drug users told to do weights or risk ageing 10 years
Highlights the importance of resistance training to avoid accelerated muscle loss on weight-loss medication.
Read article ↗
Daily Mail
Ozempic users warned about muscle loss during rapid weight loss
Focus on maintaining muscle through protein intake and strength training during GLP-1 treatment.
Link coming soon
Built for modern weight loss

Works with any GLP-1 medication — and without

Supports reduced appetite patterns — so you don't under-eat without realising
Protein-first design protects muscle mass during rapid weight loss
Catches hydration deficits early, before side effects worsen
Reinforces consistent behaviour — the biggest driver of lasting results

Compatible with Mounjaro, Ozempic, Wegovy, Saxenda, and all other GLP-1 medications. Also works for anyone tracking nutrition without medication.

The habits that determine
whether results last

Start Free →

No card required

Early users

What people are saying

★★★★★

"I didn't realise how little protein I was eating until this showed me."

J. Hodges · GLP-1 user, 3 months
★★★★★

"I was losing weight on Ozempic but felt weaker every week. CoreTrak was the first time I could actually see what was happening."

Mike W. · Ozempic user, 7 months

Why CoreTrak exists

CoreTrak was built from direct personal experience with GLP-1 medication — and from understanding exactly what the existing apps miss.

"After losing 80 lbs on GLP-1 medication, I built CoreTrak around the behaviours that actually determined whether those results would last — protein, strength training, hydration, and an honest picture of my daily calorie balance. None of the existing apps gave me that." Nick Feasey — Founder, CoreTrak
FAQ

Common questions

Is there really a free plan?
Yes — CoreTrak is free to start with no credit card required. The free Core plan gives you real daily calorie balance, protein tracking, hydration, fibre awareness, food and workout logging, and GLP-1 safety guardrails at no cost. Use it as long as you like. Upgrade to Trak when you want deeper insight — trends, coaching, and advanced analytics.
Does it work with Mounjaro, Ozempic, Wegovy, and other GLP-1s?
Yes — CoreTrak works with all GLP-1 receptor agonist medications including semaglutide (Ozempic, Wegovy, Rybelsus), tirzepatide (Mounjaro, Zepbound), and liraglutide (Saxenda). The safety checks and guidance adapt regardless of which medication you're on.
Can I use it if I'm not on GLP-1?
Absolutely. CoreTrak is built for anyone who wants clarity on their daily calorie balance — GLP-1 features are additional guardrails for those who need them, not a requirement.
Can I download this from the App Store?
CoreTrak isn't in the App Store — and that's intentional. You can use it instantly in your browser, or add it to your home screen in seconds. It works just like an app — fast, full-screen, no login friction.

Most users add it to their home screen after first use.
How do I add it to my home screen?
On iPhone (Safari):
Tap the share icon (⬆) → Tap "Add to Home Screen"

On Android (Chrome):
Tap the menu (⋮) → Tap "Add to Home Screen"
Is my health data private?
Your data is stored securely and never shared with third parties. CoreTrak is a health tool, not an ad platform — there are no ads and your data is never sold or used for targeting.
What's the difference between Core and Trak?
Core gives you the daily data you need to build the right habits — calorie balance, protein, hydration, fibre, and GLP-1 guardrails. Trak takes that data further: trends over time, weekly coaching feedback, body composition graphs, and muscle preservation monitoring. Core shows you the numbers. Trak tells you what they mean.
What is Functional Age?
Functional Age combines five key markers — strength, endurance, cardiac health, durability, and body composition — into one number. It shows whether your weight loss is improving your health, or leading to muscle and fitness loss. It's only available on Trak.

Start simple.
Get it right.

Join people building better habits and protecting their GLP-1 results with CoreTrak.

Start Free → Unlock with Trak →

Free to start · No download required · No card required · Cancel Trak anytime