Why We Built a Baby Tracker for Twins

Sadie and Roman arrived at 35 weeks. Straight into special care. Tubes, monitors, two little cots side by side. From hour one, the nurses needed numbers. How many mils through the NG tube. How long on the breast. Which baby took a bottle and which one didn’t. Every two hours, around the clock, for both of them.

We kept track with phone notes and memory. Then we tried the apps. One after another. But everything fell short for twins.

Every baby tracker assumes one baby

Every baby tracker app on the App Store does roughly the same thing. You open it. You tap “New Feed.” You pick a time. You save. It’s fine. It works. If you have one baby.

If you have two babies, you do all of that — and then you do it again. Same screen. Same flow. Same app that has no concept of a second child existing at the same time.

Some apps let you create a “second profile.” You switch between them. Tap a menu. Select the other baby. Log the same feed. Switch back. It sounds minor when I describe it like this. It is not minor at 3am when both newborns are screaming and your partner is asking “when did she last eat?” and you genuinely cannot remember which profile you’re looking at.

The problem isn’t that these apps are bad. They’re not. They’re just built for a world where one baby is the default. And when one baby is the default, twins are an afterthought.

What “afterthought” actually looks like

You want to see your day at a glance. A singleton baby tracker shows you a nice summary: 6 feeds, 4 nappies, 2 naps. Great. But you have two babies. You need to see both twins’ summaries, side by side, at the same time. Not one, then the other. Both. Because the question you’re actually asking isn’t “how many feeds today” — it’s “is one twin falling behind?”

You want feeding reminders. “It’s been 3 hours since the last feed.” But which baby? Maybe you fed one twin 20 minutes ago and the other is overdue. A reminder that doesn’t track each twin separately is just noise.

You want to log a tandem breastfeed. Both babies, same session, same time. A singleton tracker makes you log it twice. Two separate entries. For one thing that happened.

None of these are edge cases. This is just … Tuesday.

Five apps in one week

We tried five different newborn tracker apps in the first week. I wish I was exaggerating. We’d download one, use it for a day, hit some friction that only existed because we had twins, and move on. By the end of the week we were back to the notes app. Two columns. Baby A. Baby B. Tallying nappy changes with little vertical strokes like prisoners counting days.

It worked. Barely. It wasn’t good enough.

When you have newborn twins, the margin for error is thinner than you’d think. You’re more tired than you’ve ever been. You have two of everything — two feeding schedules, two nappy counts, two sleep windows — and half the brain cells you used to. The tools you use need to make things easier, not add another thing to manage.

So we built one.

A twin tracker from the ground up

DoubleLoving is a baby tracker that assumes you have two babies. Not as a feature. As the foundation.

When you open the app, you see both twins. When you log a feed, you pick one or both. When you look at your daily summary, it’s two columns, side by side. When you set a reminder, it knows which twin it’s for.

That sounds obvious. It should be obvious. But it turns out “design for two from the start” changes almost every decision.

The home screen is different. The reminders are different. The insights are different. The whole data model is different. You can’t just take a singleton tracker and bolt on a second baby. Believe me — that’s what every other app does, and it’s why they feel wrong.

Things we built that actually help

Hands-free voice tracking. Your hands are full. Literally. Both of them are holding babies. So you just talk. “Sadie had a wet nappy, Margot breastfed for 15 minutes on the left.” The AI figures out the rest. No tapping. No switching profiles. No putting a baby down to use your phone. It’s the fastest way to log feeds, nappies, and sleep when you’re outnumbered.

Smart reminders per twin. You can track reminders individually for each twin, or from the latest activity across both. Because sometimes you feed them in tandem and the timer should reset for both. And sometimes one baby eats an hour before the other and you need separate countdowns. Both modes exist because both situations happen every single day.

Daily summaries, side by side. This is the thing I open most. Two columns. Same categories. You can instantly see if one twin had fewer feeds or missed a nap. It sounds simple but no other baby tracking app does it.

Home screen widgets. A small widget for each twin, or a combined one showing both. Glanceable. You don’t even have to open the app to see when the last feed was. Twin A. Twin B. Right there on your iPhone lock screen.

Tandem logging. Breastfeeding both twins at the same time? Log it once. The app records it for both babies. Same thing works for nappies and sleep when you’re changing or settling them together.

The mental load of twin parenting

Twin parenting is a specific kind of hard. Not harder than singleton parenting in some absolute sense — it’s not a competition — but different. The logistics are different. The mental load is different. You are constantly tracking two parallel timelines in your head, and when you’re sleep-deprived, those timelines blur together. Was it Margot who ate last or Sadie? Did I already change both or just one?

A good tool doesn’t just record data. It gives you back a little bit of your brain. It holds the things you can’t hold right now so you can focus on the things that matter: keeping two tiny humans alive, and maybe even enjoying it.

If you’re a twin parent, or expecting twins, or know someone who is — this is what we built DoubleLoving for. It’s free on iPhone. We use it every single day.

It’s not perfect yet. We’re still adding things. But it’s already the twin baby tracker we wished existed six months ago. And that’s enough for now.