BurnOwl
Your Wise Companion for Safe Weight Loss
Every calorie you burn drains your BurnTank. BurnOwl turns your weight goal into one honest number, then helps you chip away at it every day — with streaks, badges and a plan built on real metabolic science.
iOS & Android · Built in the UK · Your health data never leaves your account
Hello, Matt
Let's burn some calories!
268,400
kcal · BurnTank
of 308,000 target
Current streak
7 days 🔥
Weight lost
4.2 kg
Real metabolic science
Targets from the Mifflin-St Jeor equation — the same maths dietitians use.
Safety-first by design
Weekly targets are capped at safe levels. No crash-diet numbers, ever.
Private by default
Your weight and health data belong to you — never sold, never shared.
Three steps. One number that matters.
Losing a kilogram means burning roughly 7,700 kcal more than you eat. BurnOwl makes that visible — and beatable.
Tell us about you
Age, height, weight, activity and your goal. Ninety seconds, no food diary, no judgement.
Get your BurnTank
We calculate your daily calorie target and the total you need to burn — your personal tank to empty.
Log, streak, repeat
One number a day drains the tank. Streaks keep you honest and badges celebrate the milestones.
Everything you need. Nothing you don't.
No barcode scanning marathons, no calorie databases with 40 kinds of porridge. Just the essentials, done properly.
The BurnTank
Your whole journey as one draining tank — watch it empty as the weight comes off.
Smart daily targets
BMR, BMI and a safe weekly deficit computed for your body — recalculated as you change.
Streaks that stick
Log every day and keep the flame alive. Miss a day and start again — no guilt, just momentum.
Badges worth earning
First kilogram, week-long streaks, five-figure burns — ten milestones to collect.
Progress you can see
Weekly, monthly and quarterly views of your burn and your weight, side by side.
Gentle reminders
One evening nudge if you have not logged. No spam, and it is off in one tap.
Simple, honest pricing
Start free. Upgrade when you're ready — every plan begins with a 7-day free trial.
Free
£0
forever
- Your personal metabolic plan
- Daily calorie logging
- The BurnTank dashboard
Premium
£3.99/month
or £24.99/year — save 48%
- Everything in Free
- Full progress history & charts
- Badges & streak protection
- Daily reminders & inspiration
Cancel anytime in the app. UK consumer rights respected — see our terms.
A motivational tool, not medical advice
BurnOwl supports healthy lifestyle changes and is designed for adults (18+). It does not provide medical advice. If you are pregnant, have a medical condition or take medication, consult a qualified healthcare professional before making significant dietary or exercise changes.
Your BurnTank is waiting.
Download BurnOwl, get your number, and start draining it today — the first week of Premium is on us.