How many calories do I need? A simple, honest guide
Estimate your daily calorie needs with the Mifflin-St Jeor equation, choose a safe deficit for weight loss, and learn why the number is a starting point, not a rule.
3 min read
Nutrition
Free diet & workout app
Eat better, train smarter, and talk to a real doctor when you need one.
Fitlyn tracks your meals, calories and workouts for free, in English and Arabic. Add Fitlyn Plus for an AI coach and private chats with verified doctors.
Coming soon toGoogle PlayComing soon toApp Store
Fitlyn is getting ready for the stores. The buttons go live the day it launches.
- Free for tracking and workouts
- No ads, we don't sell your data
- English and Arabic, light and dark
Free, for real
Everything you need to build the habit costs nothing
No trial clock on the basics. Logging food, training and tracking progress stay free.
Food logging that keeps up with you
Scan a barcode, search a global food database with Middle Eastern, North African and international dishes, and see calories and macros at a glance.
Workouts with video guides
Plan sessions, log sets, reps and weights, and learn each move with demo videos, cues and the muscles it works.
Progress you can see
Weight, measurements, water, steps, streaks and a weekly report, with Ramadan mode and fasting timers built in.
Learn the move, then do it
Exercise guides that show you good form
Every guide has a demo, step-by-step cues, common mistakes and the muscles involved, so you train with confidence at home or in the gym.
Fitlyn Plus
An AI coach in your pocket, and real doctors behind it
Plus is the only paid part of Fitlyn. It unlocks AI features and conversations with verified professionals.
AI coach
Ask about your meals and training, log a meal from a photo or a sentence, and get plan suggestions you can review before saving. AI runs only with your consent.
Verified doctors
See each doctor's real name, photo, credentials and certificates before you start. Chat privately and join video calls inside the app.
Trust, not marketing
How we verify every doctor
- 1
They apply with their specialty and license number.
- 2
Our team checks their credentials and certificates.
- 3
Only approved professionals can talk to patients, and you see their full profile first.
From the blog
All articles
Nutrition
How much protein do you need per day?
Daily protein targets for general health, weight loss and strength training, how to spread protein across meals, and easy sources including budget-friendly local foods.
3 min read
Weight loss
Weight loss plateau? Why it happens and what actually helps
Why the scale stops moving after a few weeks or months of dieting, how to tell a real plateau from normal water swings, and practical steps to get progress going again.
3 min read
Questions people ask
All questionsIs Fitlyn really free?
Yes. Food logging, the barcode scanner, calorie and macro targets, workouts with exercise videos, water, fasting, Ramadan mode, challenges and reports are free with no time limit. Only AI features and talking to a doctor need Fitlyn Plus.
What does Fitlyn Plus include?
The AI coach, AI meal logging from a photo or a sentence, AI plan suggestions and summaries, and private chats and video calls with verified doctors.
How much does Plus cost?
Prices are set per country and shown in the app before you pay. You can pay monthly, or yearly at a discount. The pricing page shows the current price for your country when it can.
Are the doctors real?
Yes. Every doctor applies with their license number and credentials, and our team checks them before approval. You see their real name, photo, qualifications and certificates before you start.
Start today. It's free.
Download Fitlyn, set your goal, and log your first meal in under a minute.
Coming soon toGoogle PlayComing soon toApp Store
Fitlyn is getting ready for the stores. The buttons go live the day it launches.