DuoPhase

How DuoPhase works

Begin with a private period tracker. Add daily logs and see clearly marked estimates. Partner sharing and requests are there if you choose to connect.

Start on your own

DuoPhase is a complete private tracker before anyone else is involved. Log your period, how you feel and a quick check-in. Estimates get sharper as you log.

Good morning, Emma
Next estimated period

November 3

A guess from your history, not a promise.

How are you feeling?
CalmHappySensitiveLow energy

Connect when you choose

Create a short code for your partner. It works once, for five minutes. They ask to join, and nothing is connected until you accept.

Either of you can end shared access at any time. Your private tracker stays yours.

Privacy & connection
Your code

AB-1234

Works once, for 5 minutes.

Join request

Alex wants to join you

Accept only if this is him. Sharing still starts off.

AcceptDecline

Choose what to share

Needs, energy, a mind check-in, likes and dislikes, cycle phase and calendar timing each have their own switch. All of them start off.

You can ask for help with every cycle switch off. Your partner only ever sees what you turned on.

What Alex can see
Share what you needRequests while they are active
Share today's energyEnergy, stress, room to connect
Share a broad cycle phaseNo dates or cycle day
Share calendar timingCurrent period and next estimate

Past periods, symptoms, moods and notes are always private.

Ask for one thing

Pick what would help: just listen, help with practical tasks, quiet, comfort, less noise and fewer questions, "I am overwhelmed", or time before talking. Choose how long it stays on.

Add a few words if you like, such as "dinner tonight". Your partner sees them with the request.

What would help?
Just listenHelp with practical tasksGive me quietComfort or affectionLess noiseTime before we talk
Add a detail
Dinner tonight
Keep it on for
2 hours6 hours12 hoursA day
Save my need

Your partner taps On it

Your request opens their Today, ahead of everything else, with a plain idea of what to do. One tap tells you they have it, and you get a quiet notification.

If you share your cycle phase, it shows as one small line underneath, labelled as a guess, never as how you feel.

Good evening, Alex
Emma asked

Help with practical tasks

Emma added: Dinner tonight

Pick one concrete task and finish it without being reminded.

On it

Say whether it helped

When your partner says On it, your Today asks one gentle question. Yes lets them know it landed. Not quite invites them to ask what would help more.

No scores, no streaks and no counts. It works the same way in both directions.

Good evening, Emma
Alex is on it

Help with practical tasks

Did that help?

Yes, it helpedNot quite

What DuoPhase will not do

Guess a mood from a calendar

What a person asks for always comes first. Cycle context is background, and it is labelled as a guess.

Keep score

There are no points for answering and no penalty for a quiet week.

Share anything you did not turn on

Every kind of sharing starts off, and private notes can never be shared.

Give medical advice

Estimates are not suitable for contraception or medical decisions.

Start with your own tracker.

You can add a partner later. Sharing starts off.