Look for content that understands your twin type, room for each baby's records, and a way to share the practical load. An app should help you organise your pregnancy and prepare questions for your care team. It should be clear about what it can and cannot do.
Two babies can mean a lot of information to keep track of. The right app for you depends on the things you want help with: remembering appointments, keeping scan photos, understanding the week ahead or sharing daily care after birth.
This guide is written by the team behind Twin Hearts. It explains the choices we have made in our own app and the questions worth asking of any app you consider.
1. Does the content understand your twin pregnancy?
Look for week-by-week information written with twins in mind. Twin Hearts supports DCDA (di/di), MCDA (mo/di) and MCMA (mo/mo), with an unknown option until your care team confirms your twin type. You can keep measurements for Baby A and Baby B separately and explore an illustrative 3D view of twin development.
A development illustration is not a scan. An app's general information does not replace the monitoring schedule or advice from your own medical team.
2. Can you keep the useful details together?
Think about what happens after an appointment. There may be a scan photo, a measurement, a follow-up date and a question you forgot to ask. A useful app gives each of those things somewhere to go.
Twin Hearts has appointments, visit notes, a scan gallery, baby measurements and a journal. You can log symptoms, weight and blood pressure, check off supplements and make a movement check-in.
Movement tracking is not a way to confirm that a baby is well. If movements reduce or their usual pattern changes, contact your midwife or maternity unit immediately. There is no universal daily kick target. See the NHS guidance on baby movements.
3. Does sharing actually make life easier?
If you want to use the app with a partner, check whether each person can have their own account and see the shared information they need. Twin Hearts connects you with an invite code. Appointments, shared records and tasks sync between both phones.
The Partner Playbook offers practical tasks, and a weekly briefing helps your partner catch up. Optional wearable insights have a separate partner-sharing choice. You can also use the app on your own.
4. What happens when your twins arrive?
It is worth asking whether your pregnancy app continues after birth. In Twin Hearts, recording the birth opens a new chapter: feeds, nappies and sleep for each baby; shared night plans; growth records; recovery information; and a baby photo timeline.
The night view is designed for a dark room. The shared care log helps you answer the everyday questions: which baby had a bottle, when they went to sleep and who is taking the next shift. Your pregnancy records remain available to look back on.
5. What can the AI companion do?
In Twin Hearts, the AI companion can answer general questions, help organise appointment notes and carry out practical actions such as adding an appointment or logging a feed. It can remember context from previous conversations.
It is an AI tool, not a midwife. It can make mistakes, and use is subject to daily limits. Check what it records and speak to your care team about medical questions or concerns.
6. Are the data choices clear?
Read the privacy policy before adding pregnancy or baby information to any app. Check what is stored, what is shared with a linked partner and what is sent to AI or analytics providers.
Twin Hearts' wearable insights are off by default. You choose whether to connect Apple Health or Health Connect, and whether to share those insights with your partner. The privacy policy describes data processing, and the account deletion page explains how to request deletion.
Try the everyday moments first
Start with the things you will actually use: add an appointment, save a scan, explore this week's content and link a partner if you want to. Check the store listing for current availability, device requirements and any price.