A care notebook you can talk to.
After an appointment or a hard day, say what happened. Centis turns it into notes you can check, find later, and use when the family asks.
Free. No account. Works in your phone's browser.

There's a lot to hold onto when you're caring for someone you love. Nobody can remember every detail.
How it works
From your voice to notes you can use.
Hold and talk.
After an appointment or a hard day, say what happened, the way you'd tell a friend.
Check every line.
Nothing is saved until you say so. Change or remove anything.
Ask, and get the dates.
Ask what happened before. The answer shows the notes it came from.

When it matters
Ready when someone asks.
The same notes become a page for the doctor and a message for the family.
At the appointment
Visit notes put what happened, the medicines mentioned and your questions on one page.

For the family
It drafts the update in plain words from your notes. You read it, then send it.


Privacy
Your notes stay on your phone.
There's no account and no copy on our servers. To write a note, the summary, visit notes, answers and family updates, the notes needed go through our servers to OpenAI and back. We keep none of it. OpenAI doesn't train on it, and may hold it for up to 30 days to check for abuse.
Where your notes go- Kept on your phoneNo copy on our servers
- Sent securelyEncrypted on the way
- Only what's neededEach feature sends just its notes
- Never soldNo ads, no trackers
Questions
What people ask first.
Is it free, and what will cost money later?
Keeping your own record is free, and stays free: talking to it, your timeline, asking, visit notes and family updates, for as long as you use Centis. As Centis grows, some additional features will be part of a paid plan. Family sharing is one we're planning, at around $14.99 a month for a whole family; it doesn't exist yet.
What if I lose my phone?
Your notes live on your phone, so a copy you saved is what brings them back: it takes one tap, and it opens on your new phone. Add Centis to your Home Screen too, because Safari can clear a website's data after 7 days without use.
Can my siblings see it?
Not directly. Centis writes an update you can send them by text or email in a tap.
Is this medical advice?
No. It's a memory, not a monitor: no advice, no dosages, no alarms. Ask whether something is serious and it tells you what you noted and when. It never links two things you didn't link yourself.
How do I delete my notes?
One note: tap Fix on it in Notes, then Delete this note. Everything: Settings › Start over, which offers to save a copy first.
Start keeping track today.
Start your care notebook