Privacy Policy

Effective November 14, 2026

Summary: Mam has no accounts. Your readings, journal, meals and EPDS results are stored on your phone. Only when you use the AI features is your question or meal photo sent out for processing, and it is not kept. Mam does not sell data and does not give health data to ad networks.

1. Who is responsible

The Mam app is developed and operated by [LEGAL ENTITY NAME], [ADDRESS] ("Mam", "we" or "us"). Privacy contact: hotro@mambau.store.

2. Data stored on your phone

The following data stays only on your device. We do not receive it:

Reminders are local notifications created by your phone itself. Widgets read data from the app's shared storage on your device.

3. Data sent when you use AI

These two features need our server and only work when you turn them on in the app's Privacy section:

FeatureData sentRetention
Ask Mam Your question, pregnancy week, and a short profile (country, stage, age, height, weight, first pregnancy, multiples, declared health conditions). Question text is not stored. Answers may be cached for up to 30 days, keyed by a hash, so identical questions can be answered quickly.
Meal analysis Your meal photo, pregnancy week and the same short profile. The photo is used only during analysis and is not stored on the server.

Each request includes a random user ID created by the app. The server stores this ID only in hashed form, to count daily usage and check Mam Plus status. We do not collect your name, phone number, email or location.

To generate answers, the data above is sent to Anthropic, PBC (USA), provider of the Claude AI model. Under Anthropic's API terms, this data is not used to train models. This is an international data transfer. You can decline it by turning off the two AI options; the app still works with prewritten answers.

4. Payments and Mam Plus

Payments are handled by the Apple App Store or Google Play; we never receive your card details. Subscription status is verified through RevenueCat (USA) using an anonymous user ID. We do not send your pregnancy week or health information to RevenueCat.

5. Advertising

The free version shows non-personalized ads through Google AdMob in two places: the end of the Today page and the end of the Meals page. AdMob may use device identifiers and technical information to deliver ads and prevent ad fraud, under Google's policy.

6. What Mam does not do

7. Your rights

Under Vietnam's Personal Data Protection Law and the laws where you live, you have the right to be informed, to consent or withdraw consent, and to access, correct, delete and restrict the processing of your data. In the app:

For any other request, including deleting the usage counter on our server, email hotro@mambau.store. We reply within 30 days.

8. Children

Users under 16 need consent from a parent or guardian before using Mam. Mam is not directed to children under 13, and we do not knowingly collect personal information from them.

9. Security

Connections to our server are always encrypted with HTTPS. User IDs are hashed before storage. If a data breach occurs, we will notify the competent authorities and affected users within the time required by law.

10. Changes to this policy

When this policy changes, we update this page and the effective date at the top. For important changes to how we use data, we will ask for your consent again.