SympLog

BitByBit.ch

About this app

SympLog is a private journal for your health and daily life. Track how you feel, discover patterns over time, and keep every entry encrypted on your device — no account, no cloud, no tracking.

It's a personal wellness journal, not a medical device: it doesn't offer medical advice, diagnosis, or treatment. It simply helps you notice what your days have in common.


PRIVATE BY DESIGN
• No account or sign-up — open the app and start writing
• Everything is encrypted and stays on your device
• No tracking, no ads, no external servers
• Optional app lock with fingerprint, face unlock, or PIN


ONE JOURNAL FOR EVERYTHING
• Symptoms: log how you feel in seconds, with intensity and notes
• Vitals: weight, body fat, steps, temperature — or any value you define
• Sleep and mood: rate your nights, jot down dreams and thoughts
• Cycle: a simple calendar with a private estimate of your next cycle
• Daily life: nutrition, activities, supplements, and events, all in one place
• Make it yours: rename, reorder, hide, and create your own categories


SEE THE BIGGER PICTURE
• Discover how sleep, food, mood, cycle, and more influence each other
• Clean charts show your trends across weeks, months, or the whole year
• Build a clear timeline of how you've been doing — helpful at your next doctor's visit, if you choose to share it


PRACTICAL WHEN IT COUNTS
• Optional Health Connect import (read-only, off by default)
• Encrypted backups and CSV export — your data is always yours to take
• Encrypted PDF reports of your journal
• Reminders that fit your routine
• Fast, fluid, and beautiful in dark mode


MADE IN SWITZERLAND 🇨🇭
SympLog is built by BitByBit.ch, with the conviction that health data belongs to the person it describes.


DISCLAIMER
SympLog is a personal lifestyle and wellness journal, not a medical device. It does not provide medical advice, diagnosis, or treatment. For any health concerns, please consult a qualified healthcare professional.

What’s new

• Photos: attach up to 5 to symptom or nutrition entries — encrypted, on device only
• Body map: mark where a symptom appears, front and back
• Cycle: log cervical mucus and ovulation tests; see history by cycle day
• Multi-symptom: set a severity per symptom
• New setting to hide the time of day