Tandem
A companion for expecting dads

Pregnancy, together.

One curated brief a week. How mom and baby are doing, and what you can actually do about it. Plus Nolan, for the questions you have at 2am.

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Tandem home screenTandem home screen
The weekly brief

One signal, not a feed.

Every week, Tandem sends a single brief. What is happening with mom and baby, and what you can do about it. Read it in two minutes, then put your phone down.

Mom and baby
What changed this week, in plain words. No jargon, no charts to decode.
For Dad
Two or three concrete things you can do. Small, useful, never homework.
Forty weeks
One brief at a time, from the first line to the day you meet them.
Week 123 min read

The size of a lime, and learning to move.

Mom & Baby

Reflexes are kicking in. She may feel less queasy.

For Dad

Book the scan. Take one thing off her plate.

Looking ahead

The anatomy scan is a few weeks out.

Meet Nolan

A question, not a search.

Nolan is part of Tandem. Ask him anything about the pregnancy, set a reminder, or check what is on the calendar. He answers in a sentence, not a lecture. And he never nags.

Part of Tandem

What should I ask at the 12 week scan?

Ask about the due-date estimate and whether everything looks on track. Want me to add the next appointment to your calendar?

Ask Nolan
The whole way

Forty weeks, one at a time.

A new illustration and a new brief for every week. From the first flutter to the day you meet them.

Illustration for week 6
Week 6
Illustration for week 9
Week 9
Illustration for week 12
Week 12
Illustration for week 16
Week 16
Illustration for week 20
Week 20
Illustration for week 24
Week 24
Illustration for week 28
Week 28
Illustration for week 32
Week 32
Illustration for week 36
Week 36
Illustration for week 40
Week 40
Private by design

Your pregnancy stays on your phone.

Tandem is local-first. The things you tell it stay with you, and the only thing that ever leaves your phone is a question you choose to ask.

On your device

Your due date, names, notes, and every brief are stored locally. Not on our servers.

Only your questions

When you ask Nolan something, only that question goes out to answer it. Nothing else.

No tracking

No ad networks, no analytics selling your data. There is nothing to sell.

Read the privacy policy
Questions

Good to know.

Who is Tandem for?

First-time dads, partners, and co-parents who want to be useful without reading a textbook. If your partner is expecting, it is for you.

Is it free?

The weekly brief is free. Nolan, the assistant who answers questions and handles reminders, is a subscription.

Do I need an iPhone?

Tandem is iPhone-first at launch. Android may follow.

Is my data really private?

Yes. Tandem stores your information on your device. The only thing that leaves is a question you choose to ask Nolan. See the privacy policy for the details.