They're a pattern waiting to be seen. Rhyvia helps you see it.
Log your day in under a minute. Rhyvia quietly compares the weeks and months, turning hard-to-remember details into useful observations.
RhyviaRhyvia found a consistent difference between nights with less than seven hours of sleep and the following day.
Was the brain fog worse this month or last? Do the night sweats follow the stressful weeks, or the wine, or neither? Has the joint pain always come in the last week of the month — or does it just feel that way?
These are pattern questions, and human memory is genuinely bad at them. It smooths over the details, overweights the last few days, and quietly rewrites the rest. That's why perimenopause feels random from the inside — the signal is spread across too many weeks to hold in your head.
Write it all down, consistently, and let something else do the remembering.
The analysis is only as good as the diary beneath it, which is why Rhyvia's daily entry is built to survive real life: everything is a tap, a full day takes well under a minute, and you can skip anything.
Every day you log becomes a data point. Rhyvia runs your history through six different lenses, each designed to catch a kind of pattern that hides from memory:
Every finding states its evidence, and nothing appears until there's enough data to mean something. These are observations, not instructions — what you do with them is yours to decide, ideally with your doctor.
Start with a few taps. As your history grows, Rhyvia turns those entries into observations you can explore and take to an appointment.
A full day takes under a minute. Skip anything that does not apply.
Rhyvia waits for enough data, then shows the evidence behind every observation.
On the browser version, use the same browser and device, and export regular backups.
Pattern-finding this personal should stay personal. Rhyvia has no account and no health-data server — everything you log lives only on your device, and a one-tap export gives you your full history as a file for backup or for bringing to an appointment.
Using Rhyvia in a browser? Your entries stay in that browser on that device. Clearing its site data can remove them, so use the export feature for regular backups.
Rhyvia is heading to the Google Play Store, and Google requires new apps to be tested by real users first. That's where you come in: beta testers get the app through the official Play Store testing programme and help shape it before release.
Leave the email address you use for Google Play (usually your Gmail), and you'll receive an invitation link to install Rhyvia like any other Play Store app. The ask is simple: use it daily for a couple of weeks — under a minute a day — and share what's confusing, what's missing, and whether the patterns ring true.
Want to start now? Use Rhyvia in your browser with no installation. Experienced Android users can also download the current APK directly; Android will show a warning because it comes from outside Google Play.
I built Rhyvia for myself because I wanted something simple enough to use every day, detailed enough to reveal patterns over time, and private enough for deeply personal health information.
I'm sharing it in case it helps someone else arrive at an appointment with a clearer picture of what has actually been happening — not just what they can remember in the moment.
— Lis, Rhyvia's maker and first user
Rhyvia is a personal tracking tool, not a medical device, and nothing it shows constitutes medical advice. If symptoms concern you, speak to a doctor — your Rhyvia patterns can make that conversation more productive.