A private cannabis tracker for UK medical cannabis patients
Log doses, strains, sleep, pain and condition-specific symptoms in one private app, then turn your history into a summary you can share with your prescriber.
12 trackers, shaped around your condition
A 3-step setup wizard switches on only the trackers that matter to you, so there is no clutter. Cannabis, Dose and Journal are always available.
Cannabis & strains
Log strain, THC/CBD, form, amount and effects. Add custom strains and terpene profiles.
Dose tracker
Record each dose by amount, method and time of day to see your own patterns.
Journal
Daily notes that sit alongside your logs and appear in your reports.
Sleep
Quality and duration, with an automatic comparison of nights with and without cannabis.
Pain
Level, location, triggers and relief methods, with trigger frequency over time.
Migraine
Severity, duration, aura type, triggers and what helped.
Diabetes
Glucose in mmol/L or mg/dL, reading types, insulin logging and a live in-range indicator.
Mental health
Anxiety, depression and motivation sliders with triggers and symptoms.
Seizure
Seizure type, duration, warning signs, post-ictal effects and rescue medication.
IBS / Crohn's
Symptoms, Bristol Stool Chart, food triggers and flare-ups.
Fibromyalgia
WPI body map and SSS symptom scoring, including fatigue and fibro fog.
AuDHD New
Focus, sensory overload, emotional regulation and restlessness, plus the regulation tools that help.
Medical cannabis tracking for your diagnosis
Choose your conditions in the setup wizard and CannaTrak enables the right trackers automatically.
Chronic pain, MS & cancer / chemo
Pain tracking with locations, triggers and relief, plus Cannabis and Dose logging.
Sleep disorders
Compare sleep quality on cannabis and non-cannabis nights.
Migraines
Detailed episode logs you can take to a neurology appointment.
Diabetes
Glucose readings alongside cannabis use and mood.
Anxiety, depression & PTSD
Track mood, triggers and symptoms over time.
Epilepsy
Full seizure episode logging.
IBS & Crohn's
Gut symptoms, food triggers and flare-ups.
Fibromyalgia
WPI and SSS scoring built into the tracker.
AuDHD & neurodivergence
Sensory, focus and regulation tracking.
AI summary reports for your prescriber appointments
One tap turns 30 days of your own logs into a clean report. Powered by Claude AI from Anthropic, it describes patterns in what you logged. It does not give medical advice.
- Clinical section written for your prescriber
- Plain-English section written for you
- 30-day summary across all your enabled trackers, including journal notes
- Print or save as PDF
- PDF import: read a prescription or clinic letter to pre-fill strain, dose and product details
Private by design
Cannabis use is sensitive. CannaTrak keeps your logs on your own device, needs no account and carries no advertising.
On your device
Your data is stored locally. You choose when to export or share it.
Import & export
Bring in existing spreadsheets via CSV for free. Pro adds CSV and JSON export for backups.
Patient-built
Made by a UK medical cannabis patient who wanted a better way to track. No investors, no ads.
Free to track. Pro to report.
Every tracker is free. Pro adds the reporting and analysis tools.
Free
- All 12 trackers
- CSV import
- Dashboard and live insights
- No account required
Pro Monthly
- Everything in Free
- AI summary reports
- Clinic report PDF
- Full analytics
- CSV / JSON export
- Cancel anytime
Pro Annual
- Everything in Pro Monthly
- Works out at about £1.25 a month
- Billed annually
Prices include VAT where applicable. Subscriptions on Android are billed and managed through Google Play.
Frequently asked questions
Is CannaTrak free?
Yes. All trackers are free to use with no account required. CannaTrak Pro (£2.99 a month or £14.99 a year) adds AI summary reports, clinic report PDFs, full analytics and CSV/JSON export.
Where can I get CannaTrak?
On Google Play for Android. You can also use the web app in any modern browser, including on iPhone, and add it to your home screen.
Where is my data stored?
Your logs are stored on your own device. CannaTrak does not require an account and does not sell your data. Back up regularly using the CSV or JSON export.
Is CannaTrak medical advice?
No. CannaTrak is a personal logging tool, not a medical device or a medical service. Always follow your prescriber's guidance.
How do AI summary reports work?
Pro users can generate one AI summary report per week. It turns your logged data into a short summary you can read yourself or take to a prescriber appointment. It describes your own logged patterns and does not give medical advice.
How do I cancel my Pro subscription?
On Android, open the Google Play Store, go to Payments and subscriptions, and cancel CannaTrak at any time.
Step-by-step guides are on the Help page. Our privacy policy and terms are on the full FAQ page.
Start tracking today
Download CannaTrak free from Google Play and set up your trackers in a couple of minutes.
