Nhi Diary
Privacy notice
Effective 11 October 2026
What the app stores
Photos and short videos, height and weight measurements, milestones and diary notes that parents add, plus school photos a parent has confirmed. It also keeps the email addresses of invited family members so they can sign in.
Where it is stored
On a server we operate ourselves, not on a shared photo or social platform. Nightly backups are encrypted before they leave the server and are stored in Cloudflare R2; the encryption keys stay with the family.
Face recognition
To find your child in kindergarten photos, a face recognition model runs on our own server, not in a cloud service. It keeps a reference set built only from photos of your own child. Faces of other children are compared in memory and discarded right after each photo; nothing about them is stored. Uncertain matches wait for a parent to confirm.
Who can see it
Only family members whose email has been invited. Sign-in uses a one-time code sent to that email (Cloudflare Access). Only parents can add, change or delete records.
Service providers
- Cloudflare: network, sign-in, hosting of this page and encrypted backup storage.
- Anthropic (Claude API): only once the AI features above are released and a parent turns them on. Only the data a feature needs is sent, and under Anthropic's commercial terms it is not used to train their models.
This page
This page sets no cookies and runs no analytics or advertising scripts.
Deleting data
Parents can delete any photo, video or note in the app at any time. To remove everything, email us and we will delete the account's data and backups.