# Twinly: Twin Baby Tracker — One shared log for two babies

> One shared log for two babies (iPhone/iPad app by STEPHEN PATRICK OKEEFFE.)

- Source: https://appshunter.io/ios/app/twinly-twin-baby-tracker/id6809240114 (this page in markdown: same URL + `.md`)
- Developer: [STEPHEN PATRICK OKEEFFE](https://appshunter.io/developer/6809240116)
- Category: Health & Fitness
- Price: Free
- Age rating: 12+
- Requires: iOS 15.0 · 3 MB
- Languages: American English
- Released: 2026-09-21
- Data updated: 2026-10-29

## What is Twinly?

Two babies. One log. Both of you.

Twinly is built for parents of twins. Everything assumes two from the start, so you are never doubling up entries or trying to remember which baby you fed last.

It starts before they arrive and keeps up as they grow.

WHAT YOU TRACK
Bottles in millilitres, breastfeeds with the side and how long, and pumping
Nappies, wet and dirty
Sleep, with a timer you start and stop
Growth, plotted against WHO reference curves
Potty training, once they get that far
Milestones, vaccines, medications and appointments

ONE HOUSEHOLD, ON WHATEVER PHONES YOU HAVE
Invite whoever else is doing the nights, with a code. You both see the same records, updating as they happen, and every entry shows who logged it, so nobody has to ask whether the 4am feed got written down.

You each get your own account, so there is no shared password, and either of you can be removed later without touching the other. And because Twinly runs in any browser as well as on iPhone, it does not matter what phone each of you carries.

BUILT FOR THE MIDDLE OF THE NIGHT
Slide across a tile to set the amount and tap to log it, with buttons you can hit without looking. A dark mode that will not blind you at 3am. And it works with no signal: log a feed in a lift or a hospital corridor and it is held on your phone until you are back online, then sent.

IT MOVES WITH THEIR AGE
What you see changes as they grow. Feeding steps back once it no longer applies. Potty tracking appears when it becomes useful. You are not scrolling past screens meant for a different stage.

FROM PREGNANCY ONWARDS
Expecting twins? Twinly starts before they arrive, with a hospital bag checklist, a gear and budget planner priced for two, a shared gift list, and a contraction timer if you need it. When they are born, the app moves on with you.

FOR APPOINTMENTS
Export a clean summary of feeds, growth and health records to bring to your GP, public health nurse or paediatrician.

YOUR DATA IS YOURS
It is stored in the EU, it is not shared with anyone else, and it is never used to advertise to you. Export all of it as a file whenever you like, or delete your account and everything in it from inside the app.

Twinly keeps the record you choose to write. It is not a medical device and it gives no medical advice. Always follow your GP, public health nurse, pharmacist or maternity team.

## Is Twinly safe?

Not enough ratings yet to assess Twinly.

## Is Twinly legit?

Twinly: Twin Baby Tracker has limited verification signals. The AppsHunter Legitimacy Score for Twinly is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 1.1.1 — 2026-10-20

Reminders on iPhone, and Siri.

- Notifications: a nudge when a twin hasn't had a feed logged for as long as you choose, when a sleep timer may have been left running, and the day before an appointment. Turn them on in More, Notifications.
- Siri: say "Log a bottle in Twinly" and Siri checks the amounts, then logs both twins. Siri can also log wet and dirty nappies and start the sleep timers.
- After logging for one twin, log the same for the other with one tap.
- Home shows what the rest of your household logged since you last looked.
- Note down questions to ask at an appointment.
- The slide tiles fill in each twin's colour, and each entry on the timeline shows that it opens.
- Fixed: entries logged while the app was in the background now appear straight away.
- Fixed: date and time fields no longer run past the edge of the card.

### 1.1.0 — 2026-10-03

A new look, and a quicker way to log.

- Track: slide across a tile to set the amount, then tap to log it. The dropdowns are gone.
- A fresh design throughout, in light and dark.
- Learn is now Library, with icons for each topic and this week's reading near the top.
- Swipe from the left to go back from an article or a screen in More.
- Pumped milk has its own card.
- Remove someone from your household, or change your invite code.
- Set your own prices in the gear and budget planner, and add your own items.
- Works better with VoiceOver.
- Out & About has gone. The places data behind it was too thin to be useful.
- Fixed: Home could fail to open in pregnancy mode.

### 1.0 — 2026-09-21

No release notes.

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## Related topics

[twinly](https://appshunter.io/ios/topics/twinly) · [baby twins tracking](https://appshunter.io/ios/topics/baby-twins-tracking)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-29.*