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.
Install the current Rhyvia APK directly on your Android phone. It is free, needs no account and keeps your health entries on your device.
Because this early version is downloaded outside Google Play, Android may ask you to allow installation from your browser or Files app.
After downloading, open the APK file and follow Android's installation prompts. You can also use Rhyvia in your browser without installing anything.
If you would like to test Rhyvia and share feedback, leave your name and email below. You can download the app immediately—you do not need to wait for an invitation.
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.