Last Updated: February 25, 2026
PlusMinusOne, the operator of Melda (“Melda,” “we,” “us,” or “our”), is the data controller responsible for your personal information.
We respect your privacy and are committed to protecting your personal information. This Privacy Policy explains how we collect, use, store, share, and protect your information when you use the Melda mobile application and related services (the “Services”).
We do not sell your personal information or health data. We do not use your AI conversations to train external AI models. We do not use health data for advertising purposes.
By using the Services, you agree to the practices described in this Privacy Policy.
Melda does not require account creation, registration, or login.
Instead, we generate a random unique identifier that is securely stored on your device using Apple’s Keychain technology. This identifier allows us to associate your data with your device and restore it if you delete and reinstall the app on the same device.
We do not require your email address or phone number to access the core functionality of the Services.
You may choose to provide profile information such as your name or nickname, date of birth, cycle length, period duration, birth control information, health conditions, mental health information, preferences, and goals.
You may also log reproductive and health-related information, including menstrual cycle data, symptoms, mood and emotional logs, energy levels, sexual activity (if logged), pregnancy-related data, and other health information you choose to enter. This information is considered sensitive health data under applicable privacy laws.
When you interact with Melda’s AI companion, we process the text messages you send and voice recordings if microphone access is enabled. Any personal information you include in your messages may be processed and reflected in AI-generated responses.
If you purchase Paid Services through our website, you may provide your email address and payment-related information. We use your email address and purchase-related information (such as subscription status and transaction identifiers) to process payments, provide receipts, manage subscriptions, prevent fraud, and provide customer support. Payments are processed by Stripe as our payment processor. We do not store your full payment card details.
When you use the Services, we automatically collect certain technical and usage information, including your device type, operating system version, device-based unique identifier stored via Keychain, IP address (used to determine approximate location), usage data such as feature interactions and session activity, and diagnostics information including crash reports and performance metrics.
If you grant permission through Apple’s App Tracking Transparency framework, we may access Apple’s Identifier for Advertisers (IDFA) solely for limited marketing attribution purposes. If you decline permission, we do not access or use the advertising identifier.