Privacy Policy

Last updated: February 26, 2026

Overview

Nudge (“we,” “us,” or “our”) operates the Nudge application and website at usenudge.ai (the “Service”). This Privacy Policy describes how we collect, use, store, and share your information when you use our Service, which includes our web application, mobile applications, and AI-powered task management features.

We are committed to protecting your privacy and handling your data with transparency. We collect only the minimum information necessary to provide our Service and we never sell your personal information to third parties.

Information We Collect

Account Information

Email address and name

Collected when you sign up via email or Google Sign-In. Used for authentication, account management, and service communications.

Authentication credentials

If you sign up with email, your password is securely hashed using bcrypt. If you use Google Sign-In, we store only an OAuth token—never your Google password.

Task and Productivity Data

Tasks and reminders

Task titles, descriptions, notes, deadlines, priorities, urgency levels, subtasks, and completion status.

Chat and conversation history

Messages you exchange with the Nudge AI assistant, including task-related queries and responses.

Usage patterns and preferences

Task completion patterns, scheduling preferences, and behavioral insights that help the AI provide personalized reminders.

Settings and Device Information

User preferences

Timezone, notification preferences, quiet hours, working hours, and AI feature settings.

Device tokens

Firebase Cloud Messaging tokens used to deliver push notifications to your devices. These are device-specific identifiers and can be revoked at any time.

Calendar Data (Optional)

Google Calendar events

If you choose to connect Google Calendar, we access event titles, times, attendee counts, and free/busy status to help schedule reminders around your existing commitments. See the Google Calendar Integration section below for full details on how we handle this data.

How We Use Your Information

We use the information we collect for the following purposes:

To create and manage your account and authenticate your identity
To store, organize, and display your tasks, notes, and reminders
To send you intelligent, context-aware push notifications and reminders at optimal times
To power AI features such as natural language task parsing, conversational task management, and smart scheduling
To sync your tasks and data across your devices (web and mobile)
To respect your calendar availability when scheduling reminders (if calendar integration is enabled)
To learn your preferences and patterns over time so reminders become more effective
To communicate important service updates, security alerts, and account-related notifications
To monitor and improve the reliability and performance of the Service

We do not use your personal information for advertising purposes. We do not sell, rent, or trade your personal information to third parties.

AI Features & Your Data

AI Features Are Optional

You control whether AI features are enabled in Settings

When AI features are enabled, Nudge processes your data to provide intelligent assistance:

Parse natural language input to create tasks with dates, priorities, and recurrence
Provide a conversational AI assistant for task management, scheduling, and productivity guidance
Suggest optimal reminder timing based on your completion patterns and habits
Generate contextual, motivating reminder messages
Learn and store relevant memories and preferences from your conversations to personalize the experience over time

How AI processing works: Your task content and conversation context are sent to third-party AI providers (Anthropic Claude and OpenAI) for processing. This data is transmitted securely over encrypted connections.

Your data is not used to train AI models. Both Anthropic and OpenAI have committed in their API terms that data sent through their APIs is not used for model training. Your conversations remain private.

Memory system: Nudge may store learned observations, preferences, and patterns from your conversations as “memories” to improve future interactions. These memories are stored in your account and are not shared with other users. You can disable AI features at any time in Settings, and you may request deletion of stored memories.

Google Calendar Integration

Nudge offers an optional Google Calendar integration to help schedule reminders around your existing commitments. This section explains exactly how we access and use your Google Calendar data.

What We Access

Read access to your Google Calendar events (titles, times, attendee counts, free/busy status) to understand your schedule
Write access limited to a dedicated “Nudge” calendar only, using the calendar.app.created scope

We never modify your primary Google Calendar. Nudge can only create and manage events on its own dedicated “Nudge” calendar. We cannot edit, move, or delete events on your personal or work calendars.

How We Use Calendar Data

To display your schedule alongside tasks in the Nudge calendar view
To avoid sending reminders during meetings or busy blocks
To suggest optimal times for task scheduling based on your free time
To provide the AI assistant with schedule context for better recommendations

Your Control

Calendar integration is entirely optional and requires your explicit consent via Google OAuth
You can disconnect Google Calendar at any time from Settings
When you disconnect, we revoke our access token and stop syncing calendar data
Previously synced calendar events are deleted from our servers upon disconnection

Nudge's use and transfer of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements.

Third-Party Services

Nudge integrates with the following third-party services to provide functionality. Each service receives only the minimum data necessary for its purpose:

Google Sign-In

Authentication via OAuth 2.0. Receives your email and profile name.

Google Calendar API

Optional calendar sync. Read-only access to your calendars; write access to Nudge calendar only.

Anthropic (Claude API)

AI assistant processing. Receives task context and conversation messages. Data not used for model training.

OpenAI API

Supplementary AI processing and embeddings for the memory system. Data not used for model training.

Firebase Cloud Messaging

Push notification delivery on web and mobile. Receives device tokens and notification content.

Sentry

Error tracking and performance monitoring. Receives anonymized error reports to help us fix bugs and improve reliability.

Data Retention

We retain your data for as long as your account is active or as needed to provide the Service. Specifically:

Account data is retained until you delete your account
Tasks and notes are retained until you delete them individually or delete your account
Chat conversation history is retained for the duration of your account
AI memories and learned preferences are retained until you disable AI features or delete your account
Calendar data is deleted when you disconnect Google Calendar or delete your account
Device tokens are removed when you unregister a device or delete your account
Error logs (Sentry) are retained for 90 days

When you delete your account, all associated data is permanently removed from our servers within 30 days. Backup copies in encrypted backups may persist for up to 90 days before being automatically purged.

Data Security

We take the security of your data seriously and implement industry-standard measures to protect it:

All data in transit is encrypted using TLS (HTTPS)
Passwords are hashed using bcrypt with salting
Authentication uses JWT tokens with short-lived access tokens (15 minutes) and longer-lived refresh tokens (7 days)
Database access is restricted and credentials are never exposed in client-side code
Third-party API keys are stored securely as environment variables, not in source code
We use Sentry for real-time error monitoring to quickly detect and respond to security issues

While we implement robust security practices, no method of electronic transmission or storage is 100% secure. We cannot guarantee absolute security but commit to promptly notifying affected users in the event of a data breach.

Your Rights & Choices

You have the following rights regarding your personal data:

Access and export

You can request a copy of all data associated with your account.

Delete your account

You can permanently delete your account and all associated data from Settings or by contacting us.

Control AI features

Toggle AI features on or off at any time in Settings. When disabled, no data is sent to AI providers.

Disconnect Google Calendar

Revoke calendar access at any time from Settings. Previously synced data is deleted.

Manage notifications

Control push notification preferences, quiet hours, and unregister devices from Settings.

To exercise any of these rights, visit Settings in the app or contact us at hello@usenudge.ai. We will respond to your request within 30 days.

Children's Privacy

Nudge is not intended for use by children under the age of 13. We do not knowingly collect personal information from children under 13. If we become aware that a child under 13 has provided us with personal information, we will take steps to delete that information promptly. If you believe a child under 13 may have provided us with personal information, please contact us at hello@usenudge.ai.

International Data Transfers

Your information may be transferred to and processed in countries other than your country of residence, including the United States and the European Union, where our servers and third-party service providers operate. By using the Service, you consent to the transfer of your data to these locations. We ensure that appropriate safeguards are in place to protect your data in accordance with this Privacy Policy.

Changes to This Policy

We may update this Privacy Policy from time to time to reflect changes in our practices, technology, or legal requirements. If we make material changes, we will notify you via email or through a prominent notice in the app prior to the changes taking effect. Continued use of the Service after changes take effect constitutes acceptance of the updated policy.

We encourage you to review this Privacy Policy periodically. The “Last updated” date at the top indicates when this policy was last revised.

Contact Us

If you have questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us:

hello@usenudge.ai

Website

usenudge.ai

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