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Privacy Policy

We built Mudo to give you a safe, private space to reflect. Protecting your data is core to that promise.

Last updated: November 9, 2025

In plain language

  • Your anxiety data stays on your device by default.
  • We do not sell your data. Any AI runs on-device with Apple Intelligence — your entries are never sent to OpenAI, Anthropic, Google, or any cloud model, including ours.
  • If you enable mudo+, your data syncs through your own iCloud account.
  • We do not show ads.

Introduction

Welcome to mudoapp.com ("we," "our," or "us"). We are committed to protecting your personal information and your right to privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our website, the Mudo mobile application, and related services.

Consent

When you provide us with personal information, you consent to our collection and use of that information for the specific purpose for which it was provided. If we ask for your information for a secondary reason, we will ask for your expressed consent or give you an opportunity to opt out.

If after you opt-in you change your mind, you may withdraw your consent at any time by contacting us at hi@mudoapp.com.

Information We Collect

We collect information you provide directly when using our website and services:

  • Account Information: Email address when you subscribe to our newsletter
  • Mood Data: Your mood entries, emotions, and context tags (in the mobile app)
  • Device Information: Device type, OS, browser type, and app version
  • Usage Data: How you interact with our website and app
  • Communication Data: Messages you send us through support channels

How We Use Your Information

  • Provide and maintain our website and the Mudo mobile app
  • Send newsletters and updates (with your consent)
  • Generate pattern insights from your mood data, on-device only
  • Send notifications and reminders (if enabled)
  • Improve our services and develop new features
  • Respond to your support requests
  • Comply with legal obligations

Data Storage and Security

Your mood data is stored locally on your device by default. If you enable cloud backup, your data is encrypted end-to-end before being transmitted and stored on secure servers. We implement industry-standard security measures including encryption in transit and at rest, secure authentication protocols, and regular security audits.

Data Retention

We retain your information for as long as necessary to provide our services. Mood data and associated notes are retained until you choose to delete them. Account information is retained while your account is active and for a reasonable period thereafter for legal and regulatory purposes.

Third-Party Services

  • Cloud Storage: For secure encrypted backup of your mood data
  • Analytics: To understand app usage and improve our services (data is anonymized)
  • Email Providers: For sending newsletters and communications (with your consent)
  • Customer Support Tools: To respond to your inquiries

These third parties are contractually prohibited from using your information for any purpose other than providing services to us. We do not sell, rent, or share your personal information with third parties for their own marketing purposes.

Cookies

We use cookies to maintain your session and improve site usability. Cookies are not used to personally identify you on other websites. You can control cookie preferences through your browser settings.

Analytics and Performance

We use Firebase Analytics and Crashlytics to collect anonymous usage data and diagnostic information to improve the app.

What we collect:

  • Anonymous app usage statistics (feature usage, screen views)
  • Insight feedback data (thumbs up/down on generated insights)
  • App performance metrics and crash reports
  • Device information — anonymized

What we never collect:

  • Personal mood entries or journal content
  • Names, email addresses, or personal identifiers via analytics
  • Location data
  • Health or medical information

You can disable analytics in Settings › Data & Privacy › Analytics & Usage Data. Analytics data is retained up to 26 months per Firebase’s retention policies.

Children’s Privacy

Our services are not intended for children under 13. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with personal information, please contact us immediately.

Your Privacy Rights

  • Access: Request a copy of your personal data
  • Delete: Request deletion of your data at any time
  • Export: Download your mood data in a portable format
  • Opt-out: Disable cloud backup and keep data locally only
  • Correction: Update or correct your information

Changes to This Policy

We may update this Privacy Policy from time to time. When we make material changes, we will update the “Last updated” date at the top of this page and provide additional notice where appropriate.

Contact Us

Questions about this Privacy Policy or our data practices:

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