Sidereal
Privacy Policy
Last updated: May 2, 2026
This Privacy Policy explains how Sidereal collects, uses, shares, and protects information when you use the Sidereal mobile app and related services. Sidereal helps you create, personalize, and track routines.
Information We Collect
We collect the information needed to provide and improve Sidereal, including:
- Account information: email address, display name, profile image, sign-in provider identifiers, verification status, and account timestamps.
- Authentication information: sign-in session data and related security information used to keep your account accessible and protected.
- Onboarding answers: goals, preferences, selected routine inspirations, schedule preferences, and related answers you provide to personalize your routine.
- Routine data: generated or selected activities, checklist items, activity notes, time preferences, routine order, and archived activity state.
- Progress data: completion status, checklist states, dates, and progress history for routine activities.
- Notification information: notification preferences, permission status, push tokens, reminder timing, timezone information, and notification interaction events.
- Anonymous session data: a session key used to keep your onboarding, routine, or progress available before you create or sign in to an account.
- Subscription information: purchase status, entitlement status, product identifiers, and subscription-related events provided by the app stores and RevenueCat.
- Device and diagnostic information: limited technical information needed to operate, debug, secure, and improve the app, such as app version, platform, and error information.
- Analytics and session replay information: app screens viewed, feature interactions, lifecycle events, error events, device and app context, and sampled recordings or wireframe-style replays of app sessions, including taps, gestures, navigation, and related interaction details.
- Support communications: messages and contact details you provide when requesting help.
How We Use Information
We use information to:
- create and manage your account;
- authenticate you and keep your session secure;
- generate, personalize, save, and sync routines;
- track routine progress and show progress history;
- send and manage routine reminders and notification settings;
- process, verify, restore, and manage subscriptions;
- measure app performance, understand feature usage, and troubleshoot bugs;
- provide support and respond to requests;
- debug, protect, and improve the app; and
- comply with legal, safety, tax, accounting, and app-store obligations.
Analytics, Diagnostics, and Session Replay
Sidereal uses PostHog for product analytics, diagnostics, error tracking, and session replay. Session replay helps us understand confusing interactions, reproduce bugs, and improve app quality. Replays may show the structure of app screens and how you interact with them, such as taps, gestures, navigation, and screen changes.
We configure session replay with privacy controls intended to reduce sensitive capture, including masking text inputs, masking images, masking sandboxed views, disabling log capture, and sampling only a portion of sessions. We do not intentionally use session replay to collect passwords, full payment card numbers, or content from Apple App Store or Google Play checkout screens. Masking controls are not perfect, so you should avoid entering sensitive information into free-text routine notes unless you are comfortable storing that information in Sidereal.
How We Share Information
We do not sell your personal information, share it with data brokers, or use it for cross-app advertising tracking. We share information only as needed to operate Sidereal, comply with law, or protect the app and users.
- Convex: backend database, account-related app data, session-linked app data, and server functionality.
- Better Auth and sign-in providers: authentication services, including Apple and Google sign-in where you choose those providers.
- RevenueCat: subscription entitlement management, purchase status, product identifiers, and subscription events.
- PostHog: product analytics, app diagnostics, error tracking, and session replay.
- Expo and notification services: push notification token handling, delivery infrastructure, and notification-related app functionality.
- Apple App Store and Google Play: payment processing, subscription management, refunds, and app-store compliance.
- Cloudflare Pages: hosting for these legal and support pages.
- Support providers: email or customer-support tools used to respond to your messages.
- Legal and safety recipients: authorities, advisors, or other parties when required by law or necessary to protect rights, safety, and security.
Payments
Payments are processed by Apple App Store or Google Play, depending on your device and purchase flow. Sidereal does not receive or store your full payment card number. We receive subscription status and entitlement information needed to unlock paid features.
Push Notifications
If you allow notifications, Sidereal uses push tokens and notification settings to send routine reminders and related app messages. You can change notification permissions in your device settings and adjust reminder preferences in the app.
Data Retention
We keep personal information for as long as needed to provide Sidereal, maintain your account, resolve disputes, comply with legal obligations, and enforce our terms. Routine, onboarding, and progress data are generally retained while your account or anonymous session remains active. Subscription and transaction records may be retained longer where required for app-store, accounting, fraud prevention, tax, or legal reasons. Analytics, diagnostics, and session replay records may be retained for a shorter operational period or in aggregated, de-identified, or pseudonymous form to help us understand product quality and reliability.
Account Deletion
You may request deletion of your Sidereal account and associated personal data through our account deletion page. We will delete or de-identify account data and reasonably identifiable analytics or session replay data unless retention is required or permitted for security, fraud prevention, legal compliance, tax, accounting, dispute resolution, or app-store obligations.
Your Choices and Rights
Depending on where you live, you may have rights to access, correct, delete, restrict, or receive a copy of your personal information, or to object to certain processing. To make a privacy request, contact us at [email protected].
Security
We use reasonable administrative, technical, and organizational safeguards designed to protect personal information. No method of transmission or storage is completely secure, so we cannot guarantee absolute security.
Children
Sidereal is not directed to children under 13, and we do not knowingly collect personal information from children under 13. If you believe a child provided personal information, contact us so we can take appropriate action.
International Use
Sidereal may process information in countries other than the country where you live. Where required, we use appropriate safeguards for international transfers.
App Store Privacy and Google Play Data Safety
We use this Privacy Policy, Apple App Privacy details, and Google Play Data safety disclosures to describe Sidereal's data practices. Store disclosures are summaries and may use store-specific categories. This Privacy Policy provides additional detail about how Sidereal collects, uses, shares, and retains information.
Changes to This Policy
We may update this Privacy Policy from time to time. If changes are material, we will take reasonable steps to notify you, such as updating the date above or providing in-app notice where appropriate.
Contact
Privacy questions and requests may be sent to [email protected].