At a glance
You can use the cycle calendar and planning tools without an account. Your cycle profile is processed on your device and is not sent to a MoMuTu server in this version. There are no ads, in-app purchases, subscriptions or third-party analytics SDKs in this configuration. Contacting support or opening a website is a separate online action.
1. Information on your device
The app stores the first day of your most recent period, the lengths of three to five completed cycles, your chosen planning preference (trying to conceive, a boy or a girl), the selected wife/husband role and associated female/male setting, and language preference. It uses these inputs locally to estimate cycle dates and display a plan. These are sensitive health and reproductive-planning details; enter another person's information only with their permission.
Daily checkmarks, completed-date selections and care checklists currently remain in memory for the app session rather than a lasting activity diary. The app does not connect to Apple Health/HealthKit, Health Connect, contacts, precise location, camera or microphone. It does not send push reminders in this version.
2. No cloud or partner sync in this version
Apple/Google sign-in, cloud backup, invitation codes and remote partner syncing are disabled in this release configuration. The app does not fetch login-provider settings, restore an online session or upload your cycle profile to the studio backend. Choosing a wife/husband role changes the local presentation; it does not share your records with another person. We will update this notice and provide the appropriate choices before enabling new data-sharing services.
3. Storage, editing and deletion
On iOS, the cycle profile and role are stored through Expo SecureStore in the device Keychain, accessible while the device is unlocked and configured not to migrate to another device. Android uses encrypted storage backed by the Android Keystore. Language settings are also kept locally. If you use a browser preview, its local storage is separate and does not have the same native secure-storage protection.
You can correct your cycle history and planning preference through Profile → Edit and change your role in Profile. The current offline app does not provide a dedicated “Delete all local data” control. On iOS, uninstalling the app does not guarantee deletion of the Keychain profile; it may reappear after reinstalling. On Android, clearing app storage or uninstalling removes local app data; SecureStore entries are excluded from Android backup. Offloading, device backups, browser storage and copies you make have their own retention behavior. See Expo's storage and persistence documentation.
MoMuTu cannot remotely view or erase a profile that exists only on your device. Contact us for help with the controls available in your version; support cannot perform a remote Keychain wipe. Protect your device with a passcode and consider who can access it while unlocked. No storage system is completely risk-free.
4. What the estimates mean
Our Baby is a personal record and planning tool, not a medical diagnosis or contraceptive method. Calendar estimates cannot confirm ovulation, guarantee pregnancy or determine a baby's sex. A boy/girl preference is a user choice, not a medically established outcome. Do not treat lower-likelihood days as safe days for avoiding pregnancy. Consult a qualified healthcare professional for health decisions.
The app is intended for adults planning a family, not as a service directed to children. We do not knowingly solicit children's personal information through support. Contact us if you believe such information has been sent.
5. Support, your rights and updates
MoMuTu Gaming · Vietnam is responsible for this notice. Email chientt510@gmail.com with “Our Baby” and your app version. If you contact us, we receive your email address, message and any attachments. Avoid sending cycle histories, intimate details or unredacted screenshots unless genuinely needed; never send passwords. Support mail is kept only as needed to respond, resolve issues or meet legal obligations. We do not sell your personal information or use your cycle profile for advertising.
Depending on applicable law, you may request access, correction or deletion of information we hold, object to or restrict processing, or complain to a relevant authority. Local-only data remains under your device controls and the limits explained above. Opening policy/support links sends ordinary connection information such as an IP address to the website or email provider, which may process it outside your country. Website and support handling is also described in the studio notice; this app-specific notice takes precedence for Our Baby. We will update the date and provide appropriate notice if data practices materially change.