Getting started

Start in one morning.

One temperature, logged before you get out of bed — that's the whole habit. Bella Blooms works out the rest: where you are in your cycle, and how to work with it today.

No accounts. No cloud. Nothing ever leaves your phone.

Get Bella Blooms

One thing to grab first: a basal body thermometer

A regular thermometer isn't precise enough — reading your cycle needs about 0.05°C / 0.1°F resolution to catch the shift that confirms ovulation. Any pharmacy, around $10.

How it works

Six steps. After the first two, it's really just one.

Grab a basal thermometer

Any pharmacy, about $10. This is the only physical thing you need.

Add it to your home screen

Open your link in Chrome, tap "Add to Home screen." From then on it opens fullscreen, like a real app, and works fully offline.

Take your temperature each morning

Right when you wake — before sitting up, talking, or checking your phone. The same time each day matters more than the exact time.

Log it, see your day

A phase-aware greeting, plus what to eat, how hard to train, and what your body could use more of today.

Tap once when your period starts

That's the only other input needed. Everything else — your phase, your predictions — is computed from there.

Watch it sharpen over time

Your first cycle is mostly Bella Blooms learning your rhythm. By the second, it's confirming ovulation from your real temperature shift — not a guess.

A companion, not a chart.

Bella Blooms is a supportive companion, not a medical device or contraception. It won't replace your doctor — but it might make it easier to talk to one.

Get Bella Blooms