Soleii is a period and cycle tracking app built for two people. She logs her days. He wakes up already knowing what kind of day it is.
No spam, ever. One email when we launch. 🔒
Welcome to the Soleii family.
Your soul animal is warming up just for you.
Every other period app hands her a calendar and leaves him guessing. Soleii gives you each your own screen, wired to the same days.
Phase, forecast and fertility at a glance. Log a symptom in one tap and the whole week updates around it.
He never sees her raw logs. He sees what to do about them, in plain language, on the day it matters.
Mark the first day and Soleii does the rest. Phase, next period and fertility window recalculate the moment anything changes.
A calendar that reads like a story instead of a spreadsheet. Logged days, predicted days and the week ahead, colour coded.
Not her data. Her context. One clear thing to do today, plus a playbook for the phase she's actually in.
Rough day and no energy to explain it? One tap sends him a gentle alert with the exact words to reply.
One tap tells him you need something. He gets a nudge, a tip, and a line he can actually send back. No fight, no guessing, no "what's wrong?"
Most apps track your cycle. Soleii makes your partner feel it too.
For the days you're exhausted before you open your eyes — he already knows.
A soul animal who walks you through every phase. Not a spreadsheet. A companion.
One plan. Two people. The first period app built for both of you.
You shouldn't have to explain why today is hard. Soleii explains it for you.
Soleii is a menstrual cycle tracking app for couples. One person tracks her period, symptoms, mood and energy in the app. Her partner links to the same account from his own phone and sees a simplified view of where she is in her cycle, plus what would help her that day. He never sees her raw logs.
Soleii runs on Android phones, and an iPhone version is on the way. Here's what you can do with it:
Soleii offers Google Sign-In so you can create an account without another password. We ask for your basic profile and email address, and Google sends us your name and email.
We use that to create your Soleii account, recognise you when you sign back in, and connect you with your partner. We don't read, send or store anything else from your Google account, and we don't sell your data or use it for advertising.
Full detail is in the privacy policy and the terms of service.
Soleii is a wellness and tracking app, not a medical device. It doesn't diagnose conditions, and it isn't a substitute for advice from a doctor or a form of contraception. Questions? Email support@azynctra.com.
Early members get first access, founding-member pricing and a say in what we build next.
Claim your spot