TwinRoutine: Twin Baby Tracker

Say it once — both twins logged. New: voice logging with Siri, no setup needed. Everything stays on your phone.

TwinRoutine is the simplest logbook for parents of twins. Track sleep, diapers, feeds, baths, and more — with one app designed for two babies.

WHY TWINROUTINE? Raising twins means double everything: double feeds, double diapers, double naps. TwinRoutine gives you one place to log it all, fast.

SAY IT ONCE — BOTH TWINS LOGGED Ask Siri without opening the app, without unlocking your phone. Say the name of one twin, or say nothing at all and it logs for both. Works the day you install it — no shortcuts to build, no internet needed.

PRIVACY FIRST — NO COMPROMISES

• No account required
• No email, no login, no sign-up
• No internet connection needed to use the app
• No analytics, no tracking, no third-party SDKs
• Your logs stay on your device, synced privately via your personal iCloud (managed by Apple, never by us)
• We never see, store, access, or sell your data — we literally cannot
• No ads. Ever.

KEY FEATURES

• Three taps to log any activity
• Voice logging with Siri — one phrase for both twins
• Live Activity: the nap timer runs on your Lock Screen
• Separate tracking for each twin, plus "Log for Both" when they share
• Parallel View: see both twins' days side by side — spot sleep overlaps, feeding patterns, and rhythms
• Home screen widget: last feed, diaper, and sleep for both twins at a glance
• Growth & measurements tracking
• Milestone memories — from first smile to first steps
• Sleep timer with manual nap entry
• Doctor appointment reminders
• Full history with charts (Pro)
• CSV and PDF export for pediatrician visits (Pro)

FREE VS PRO Free: Sleep, diapers, and feeds — everything you need to start. Pro: Unlock Bath, Temperature, Doctor, Medicine, Siri logging, full history, Parallel View, Growth, Milestones, charts, and export. All new users get a 10-day free trial with all Pro features unlocked.

IMPORTANT — MEDICAL DISCLAIMER TwinRoutine is a digital logbook — the equivalent of pen and paper. It is NOT a medical device. It does not diagnose, treat, monitor, or advise on any health condition. Always consult a healthcare professional for medical concerns about your children.

Built by a parent, for parents of twins who already have enough on their plate.