Feeds, naps and diapers. No deep dive required.
A quiet little tracker for the first years. Nothing to sign up for, and easy to share with your partner or the grandparents. Private and encrypted, so it’s just between you and your family.
Not in the stores yet.
Your family’s log, for your family.
A baby log says a lot about a home: when it sleeps, who’s there, how a little one is doing. Subby keeps all of it private.
Encrypted, always
Your log is encrypted on every phone, and encrypted end to end when it syncs.
No account
Open the app and start logging. No email or password needed.
Yours to take with you
Export to CSV or make an encrypted backup whenever you like.
Open source
The app is MIT and the sync server AGPL-3.0. The code goes public on GitHub before launch, so anyone can check how it works.
What you log at 3 a.m., and look back on at 3 p.m.
- Feeds · breast timer for left and right, bottle, solids
- Sleep · naps, nights and night wakings
- Diapers · wet, dirty, both, in one tap
- Nap predictions · a put-down window and the usual nap length
- Growth · weight, length and head, with WHO percentiles
- Pumping, temperature, medication · and potty, later on
- Milestones and notes · a story of firsts on the profile
- History and trends · a timeline of the day, patterns over weeks
- Your data, portable · CSV export, encrypted backups, import from Baby Buddy
No streaks or scores. Subby just shows what happened.
Your phones hold the keys. Our server holds locked boxes.
Share one log with everyone who helps: your partner, a grandparent, the nanny. Each entry is locked before it leaves the phone, and only your family’s phones have the key.
- A new phone joins by scanning a QR code and matching a 6-digit code.
- Remove a phone and the family key changes.
- An optional 24-word recovery key, if you want one.
- Updates show up live on every phone.
Everyone stays in sync, and nobody’s left at sea.
How Subby Sync workslocked boxes
We charge for hosting, not for features.
The app is free and complete on one phone. Sharing through our server is the only thing that costs money, and running your own server is free.
Every feature, any number of children. No premium tier. On a single phone you never need a server.
Once, no subscription. Every phone that syncs through our server needs an unlock, after a 14-day free trial for the whole family. How it works
Price not final until the app is in the stores.