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The tide doesn't stop.
It just gets harder to read.

Tidalyn connects the health data you're already tracking — sleep, heart rate, cycles — into one clear view, so the rhythm underneath becomes visible again. No re-entering what you've already logged. No guessing.

You're on the list — we'll be in touch.

Free during early access. No spam, ever.

Sleep dipped Cycle shifted Today Pattern found
The problem

You're already tracking more than any app shows you.

Scattered by design

Sleep lives in Apple Health. Cycles live in a different app. Symptoms end up in Notes. Nothing talks to anything else, so you're stuck re-entering data you've already logged.

Logs, not insight

Most trackers ask you to log for weeks and hand back a list. Nowhere to actually see how your sleep, mood, and symptoms move together over time.

Trust, sold off

Some of the biggest apps in women's health have been caught sharing sensitive data without real consent. That shouldn't be the cost of understanding your own body.

How it works

One line, the whole picture.

No new habits to build. Tidalyn fits into what you're already doing.

Connect what you track

Link Apple Health or Health Connect once. Sleep, heart rate, and cycle data flow in automatically — read-only, nothing leaves your control.

Log the rest in seconds

Hot flashes, mood, brain fog — a few taps, not a form. Only what your wearables can't already see.

See the tide, not just the waves

Everything lands on one line, so you can finally see what's actually connected — the steady rhythm underneath the day-to-day symptoms — and bring a clear picture to your next appointment.

Built privacy-first

Your data is yours. Full stop.

We built Tidalyn to be the app we'd want to trust with this. That means no ad SDKs, no data brokers, and nothing collected beyond what makes the app work for you.

Never sold, ever — to anyone, for any reason
Encrypted in transit and at rest
Export or delete everything, anytime, in one tap

Be among the first to try Tidalyn.

We're opening early access in small groups. Join the list and we'll reach out when it's your turn.

Free during early access. No spam, ever.