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Privacy Policy

Last updated: May 19, 2026

1. Introduction

Lida ("we", "our") is a personal productivity application. This Privacy Policy describes how we collect, use, and protect your information, in compliance with applicable data protection laws.

2. Data We Collect

We only collect data strictly necessary for the application to function:

  • Full name — to personalize your experience.
  • Email — for Magic Link authentication and notifications.
  • Timezone — to display correct dates and times.
  • Tasks, events, and notes — content you generate within the app.
  • Notification preferences — push and email settings.
  • Monthly Focuses — your goals and intentions for specific months to guide AI insights.

3. Cookies and Authentication

We use strictly essential cookies to maintain your authentication session (Magic Link). We do not use tracking, advertising, or third-party analytics cookies.

Referral Program

Lida operates an optional referral program. When you share your referral link, a temporary cookie named 'lida_ref' may be stored in the browser of anyone who visits through your link. This cookie is used solely to attribute the referral during account creation and is automatically deleted upon successful processing. We store your referral code and, if applicable, the ID of the user who referred you. This information is used only to calculate trial extensions and is never shared with third parties.

Artificial Intelligence Data Processing

Lida uses Google Gemini and Groq APIs to generate personalized insights ("Morning Briefing", "Daily Wrap-Up", "Weekly Analysis", and "Monthly Retrospective"). For this purpose, your tasks, notes, profile data, and context are processed by these services. According to the API terms of service of these companies, your data is used exclusively to generate real-time responses and is NOT used for training artificial intelligence language models.

Push Notification Quick Actions

Lida offers quick actions in push notifications for task reminders. When you receive a reminder notification, you can click the 'Complete ✓' button to mark the task as completed directly from the notification, without opening the app. This functionality uses your browser's Service Worker to send an authenticated request to our servers, updating the task status in our database. The action only works for your own tasks and requires you to be authenticated.

User Activity Tracking

Lida tracks your in-app activity to improve user experience and detect potential retention issues. We record the date and time of your last significant interaction (creating, editing, completing, or postponing tasks) in a field called 'lastActiveAt'. This information is used exclusively for: (1) identifying inactive users and sending re-engagement communications, (2) personalizing retention email timing, and (3) analyzing usage patterns for product improvements. Activity data is stored securely and never shared with third parties.

Retention and Onboarding Emails

Lida uses the Resend service to send transactional onboarding and retention emails. These emails include: (1) welcome series during the first 7 days (D+1, D+3, D+5) introducing app features, and (2) re-engagement email after 7 days of inactivity (D+7). Emails are sent only to users who have enabled email notifications in settings. You can opt out of these communications at any time in the app settings. Email content is personalized with your name and based on your usage patterns, but never includes sensitive information beyond your name and aggregated activity data.

Collaborative Sharing (Shared Trails)

Lida allows you to share a task list associated with a specific tag (#tag) with another registered user through the Shared Trails feature. When you accept a sharing invite, items tagged with the shared tag become mutually visible between you and the inviting user. Your email address is used solely to send the invite and verify your identity at acceptance. Shared items are stored in our database under the same security and privacy rules as your personal items. You may leave a shared trail at any time from the tag settings, which will immediately stop the exchange of data. Neither party can access the other's non-shared items.

Custom Collaborative Lists

Lida allows you to create shared workspaces called Custom Lists and invite other registered users by email. When you invite someone, their email address is used solely to send the invitation and verify their identity upon acceptance. Once a member accepts, they can view and interact with items in the shared list. Items created within a custom list — including their content, tags, and status — are visible to all members of that list. Members may be assigned roles (Owner, Editor, Viewer) that determine their level of access. You may remove members or revoke pending invites at any time. Custom list items are isolated from the global tag system: they never appear in Shared Trails or global tag pages. All data within a custom list is stored under the same security rules as personal items.

Payments and Subscriptions

Lida uses Stripe to process payments for paid subscriptions (PLUS and PRO plans). When you subscribe, your Stripe customer ID and subscription ID are stored in our systems to manage your access. No credit card data is stored by Lida. All financial data is handled directly by Stripe in compliance with the PCI DSS standard. For more information, see Stripe's Privacy Policy at stripe.com/privacy.

4. Data Usage

Your data is used exclusively to:

  • Provide and maintain the application's functionality.
  • Send notifications you have opted to receive (push and/or email).
  • Personalize the interface with your name and preferences.

5. Data Sharing

We do NOT sell, rent, or share your personal data with third parties for marketing or any other commercial purpose. Your data may be processed by infrastructure providers (hosting and database) strictly for service operation.

6. Your Rights

You have the right to:

  • Access all your stored personal data.
  • Export your data in JSON format at any time, directly from the Settings page.
  • Permanently delete your account and all associated data, at any time, directly from the Settings page.
  • Correct your personal data (name, email) in Settings.
  • Revoke consent for notifications at any time.

7. Security

We employ technical and organizational measures to protect your data, including encryption in transit (HTTPS/TLS), Row Level Security (RLS) in the database, and passwordless authentication via Magic Link.

8. Data Retention

Your data is retained while you have an active account. When you delete your account, all data is permanently removed from our systems.

9. Contact

For questions, requests, or to exercise your rights, contact us at: contato@lida.digital.