AI GP consultations, 30+ interactive health tools, and trusted medical information — all in one beautifully designed app.
Talk to Dr. Prescriba. It asks questions, builds a clinical picture, then gives you a real assessment — exactly like sitting with a doctor.
BMI, calories, body fat, period tracking, blood sugar, alcohol units and more.
Browse 200+ conditions and medicines with links to NHS, Mayo Clinic and NICE for deep reading.
40+ red-flag symptoms detected instantly. Immediate 999 guidance before anything else.
Nothing is stored, logged or shared. Your conversations vanish when you close the tab — by design.
Here's a summary of your recent health data
Use any health tool and click "Save Result" to start building your personal health log.
Your personal settings, saved across all sessions
Tell me what's going on. I'll ask you questions to understand your situation properly — just like a real GP consultation.
🔒 Not stored · Call 999 for emergencies
Calculate your Body Mass Index and healthy weight range.
Calculate your TDEE and macro targets based on your goal.
Estimate body fat using the US Navy circumference method.
Plan your journey from current weight to your goal.
Track your cycle, fertile window, and upcoming periods.
Find your fertile window and best conception days.
Calculate your due date and track weekly milestones.
Check common PCOS-associated symptoms. Not a diagnosis.
PCOS is diagnosed via ultrasound + blood tests (LH, FSH, testosterone, insulin). Diagnosis requires 2 of 3: irregular ovulation, excess androgens, or polycystic ovaries.
Assess your symptoms and likely menopause stage.
Track your glucose readings with time-of-day context.
| Date/Time | Value | When | Status | Notes |
|---|
Convert between HbA1c %, mmol/mol, and average glucose.
| Category | HbA1c % | mmol/mol | Action |
|---|---|---|---|
| Normal | < 6.0% | < 42 | ✓ Routine check |
| Prediabetes | 6.0–6.4% | 42–47 | ⚠ Lifestyle change |
| Diabetes | ≥ 6.5% | ≥ 48 | ✗ See GP |
Track your carbohydrate, fibre, and sugar intake for a meal.
Track your daily free sugar against recommendations.
See exactly how much smoking costs — and what quitting saves you.
Track units and weekly intake against NHS guidelines.
Track daily caffeine and see what's still in your system.
20-20-20 rule: every 20 min, look 20 feet away for 20 seconds.
Build streaks, track progress, and build lasting healthy habits.
Calculate your safe sun time based on skin type, SPF, and UV index.
Assess lifestyle and symptom patterns associated with low testosterone.
Validated International Prostate Symptom Score assessment.
Waist circumference and waist-to-height ratio are strong predictors of metabolic risk.
Assess your recovery and get a personalised training recommendation.
Log your sleep and track quality over time.
Log your daily mood and spot patterns over time.
Track resting heart rate and understand your cardiovascular health.
Track your medications, doses, and daily adherence.
Browse conditions, symptoms, and medicines — every card links to NHS, Mayo Clinic, and NICE for the full picture.
Prescriba only draws from peer-reviewed, authoritative medical institutions. Click any card to read the original material yourself.
The UK National Health Service's comprehensive conditions library.
Official dosage, side effects, and interactions for all common medicines.
World-renowned academic medical centre — expert-reviewed information.
US National Library of Medicine — gold-standard drug and condition information.
Evidence-based clinical guidelines used by all NHS clinicians.
The definitive UK prescribing reference for medicines.
World Health Organization's global health library.
US Centers for Disease Control — vaccines, infectious disease, prevention.
GP-written, medically reviewed leaflets used across NHS practices.
Prescriba is a health information assistant, not a diagnostic tool.
An AI-powered health companion that helps you understand symptoms, learn about medicines, and know when to seek professional care. It draws from NHS, Mayo Clinic, NICE guidelines, and the BNF.
These symptoms trigger immediate 999 guidance — before anything else:
Medical emergency: 999 (UK) · 911 (US) · 112 (Europe)
Urgent non-emergency: NHS 111
Mental health crisis: Samaritans 116 123 · Text SHOUT to 85258
Daily notes, symptoms, mood, energy and more
Your data, your control
Prescriba is a health information and tracking tool only. It is not a medical device, does not provide medical diagnoses, and is not a substitute for professional medical advice, examination, diagnosis, or treatment.
Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay seeking it because of something you have read on Prescriba.
The calculations, estimations, and reference ranges provided are based on published clinical guidelines and are intended for general educational purposes only. Individual results may vary significantly.
Emergency: If you are experiencing a medical emergency, call 999 (UK), 911 (US), or 112 (Europe) immediately. For mental health crises, call Samaritans: 116 123 (free, 24/7).
Generate health reports, export data, and track your milestones
Files are generated locally. Nothing is uploaded to any server.