A baby’s data — feeds, sleep, health, photos — is among the most intimate a family holds. Tymi starts from the opposite assumption to most apps: everything stays on the device by default. No account, no advertising, no trackers, and nothing sent anywhere unless you ask for it.
| Data | Where it is stored | What leaves the device |
|---|---|---|
| Baby, pregnancy and cycle tracking | a local database on your phone | nothing, while sync is off |
| Journal photos and memories | the app’s local files | nothing; the PDF photo book is built on the device |
| Family sync (optional) | the devices you connect | end-to-end encrypted content, unreadable server-side |
| Advertising, profiling, resale | — | none: there is no ad network and no tracker |
Frequently asked questions
Is my tracking data shared?
No. Core tracking lives in a local database on your phone. There is no advertising, no behavioural analytics and no resale. Syncing with a partner is an explicit choice, never on by default.
Does the app work offline?
Completely. Tracking, sounds, journal and guidance all work with no connection — that is the default mode, not a degraded one. Useful on the maternity ward, while travelling, or simply to not depend on a server.
Do I need an account to use Tymi?
No. You open the app and start. No email, no password, no phone number. Your memories travel with you through backup, without passing through our servers.
Is tracking data considered sensitive?
Under the GDPR, data concerning health is a special category with reinforced protection — France’s CNIL says so in its definition of sensitive data. That is the reason for the “on the device by default” choice.
What happens when I change phone?
You get your data back through your phone’s own backup, or through family sync if you turned it on. There is no account to recreate, because there is none.
How can I check these claims?
The privacy policy is published on this site, and the App Store privacy declaration will repeat it at launch. If anything in the app seems to contradict it, write to us: that is a mistake to fix, not a nuance to defend.
This page gives general information. Tymi is not a medical device and does not replace advice from a midwife, doctor or pediatrician.
Sources
Sources checked on 2026-09-27.