Health data is valuable to others
In 2025, a US jury found that Meta illegally obtained health data from users of the Flo period app. Your diary shouldn't be anyone's business model.
Launching soon · Early access
Your health is nobody's business. Track it encrypted.
Symptonote is a simple symptom diary that stays encrypted on your phone. Log how you feel in 30 seconds, spot patterns over time, and share a clear report with your doctor, only when you choose. No account, no ads, never sold.
Free to join · Early members get the launch price
- AES-256 encrypted
- Stays on your phone
- No ads, never sold
- 30-second check-ins
The problem
Health apps know a lot about you. Too many share it.
Your symptoms, medications and moods are some of the most personal data you have.
Your diary lives on their servers
Most trackers store everything in the cloud, behind an account, under their rules.
Complicated, and full of paywalls
Long forms, endless options and key features behind expensive subscriptions. It's easy to give up.
How it works
Thirty seconds a day. That's it.
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Check in
Rate how you feel and tap your symptoms. Add a note if you want.
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See patterns
Simple charts show how your symptoms change over weeks and months, alongside the things you choose to track, like sleep or medication.
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Share with your doctor
Create a clear PDF report for your appointment. You decide what's in it, and who gets it.
Encryption
Encrypted on your phone. Readable only by you.
Every check-in is encrypted the moment you save it. Symptonote has no server that receives your diary.
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AES-256 encryption
Every entry is encrypted on your device with the standard banks and governments rely on.
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Your key stays with you
It's created on your phone and protected by Face ID and your iPhone's secure hardware. We never have it, so we can't read your diary.
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Never sold, never shared
No ads, no trackers, no data brokers. A report only leaves your phone when you share it yourself.
“Tue 14 · Migraine, moderate · ibuprofen at 2 pm · slept 5 hours”
AES-256
What anyone else sees
b17e 5c02 9fa4 e83d 21c6 7a90 d4f1 08eb 6c3a f952 13d7 a8e4 4b0f c6e9 72a1 0d5b e9c4 38f6 a17d 5e02 c3b8 96fa 1e47 d0a3
Features
Everything you need, nothing you don't.
30-second check-ins
Tap how you feel and what's bothering you. Done.
Your own symptoms
Track anything: pain, fatigue, migraines, cycles, mood or digestion. Name it your way.
Clear trends
See how your symptoms change over time, and what tends to come with them.
Reports for your doctor
Turn weeks of check-ins into a one-page PDF to bring to your appointment.
Gentle reminders
A daily nudge at the time you choose, or none at all.
For someone you care for
Keep a separate diary for a child or parent you look after.
Compare
How Symptonote compares.
| Feature | Typical health apps | Symptonote |
|---|---|---|
| Where your diary is stored | On their servers | Encrypted, on your phone |
| Who holds the encryption keys | The company | Only you |
| Account required | Usually | No |
| Ads or data sharing | Check the fine print | Never |
| Price | Up to $20 / month | $4.99 / month or $99 once |
Typical health apps: public prices of popular symptom-tracking apps, October 2026.
Who it's for
For anyone keeping track of their health.
Living with a long-term condition
Migraines, endometriosis, IBS, long COVID or chronic pain: keep a record that helps you and your doctor.
Caring for someone
Track a child's or a parent's symptoms, and bring a clear history to appointments.
Getting to know your body
Cycles, sleep, energy or mood: notice the patterns you'd otherwise miss.
Pricing
Fair pricing. No surprises.
Monthly
$4.99 / month
Cancel anytime.
- Unlimited check-ins and symptoms
- Trends and charts
- PDF reports for your doctor
- AES-256 encryption
- No ads, ever
Lifetime
$99 once
Pay once. No subscription.
- Unlimited check-ins and symptoms
- Trends and charts
- PDF reports for your doctor
- AES-256 encryption
- No ads, ever
Symptonote isn't available yet. Reserve your spot and we'll email you when early access opens.
Or just join the free waitlistFAQ
Questions, answered.
When does Symptonote launch?
We're building it now. Join the waitlist and you'll be among the first to get access, at the launch price.
Can anyone else see my health data?
No. Your diary is encrypted on your phone with AES-256, and Symptonote has no server that receives it. Nobody at Symptonote can read it.
Is Symptonote a medical device?
No. It's a personal diary that helps you keep track of how you feel and talk to your doctor. It doesn't diagnose anything or give medical advice.
Can I share my diary with my doctor?
Yes. Create a PDF report and share it however you like, only when you choose.
What if I lose my phone?
Your diary stays encrypted and locked, so a lost phone doesn't expose your health data. Because nothing is stored in the cloud, export a PDF of anything you want to keep.
Which devices will it support?
iPhone and iPad first. Android is on our list.
How much will it cost?
$4.99 a month, or $99 once for lifetime access. People on the waitlist get the launch price.
Keep your health between you and your doctor.
Join the waitlist. We'll email you once, when early access opens.
Join the waitlistWe'll only email you about Symptonote's launch. Unsubscribe anytime. Privacy policy