Privacy Policy

Flexchange is a currency converter and exchange-rate tracker. We keep the data model focused on making the app work.

What We Collect

We collect minimal data needed to operate the app:

Anonymous account: Firebase Authentication may create an anonymous account so your preferences can sync across devices.
Currency preferences: The base currencies, target currencies, calculators, and related app settings you choose.
Rate alerts: If you create an alert, the currency pairs, target rates, alert direction, repeat timing, and alert status you choose.
Notification token: A device token may be stored so Firebase Cloud Messaging can deliver rate alerts and other app notifications.
Basic analytics: Pseudonymous app and website usage data that helps us improve Flexchange. Website analytics may include a random browser identifier, pages viewed, App Store button clicks, referring page path without its query parameters, campaign parameters, and browser or device details.

What We Do Not Collect

Your name or email unless you contact us directly
Your location
Your bank account, card details, transactions, or financial history
Personally identifiable financial information

Website Calculators

The website converter can store your last amount and currency selections in your browser’s local storage. These preferences stay in that browser and can be removed by clearing site data. Shareable converter links include the amount and currencies in their URL; anyone with the link can see those selections. Fee-calculator inputs and expense rows are calculated in the browser and are not saved by those tools.

Third-Party Services

Flexchange may use Firebase for anonymous authentication, data storage, analytics, Cloud Functions, and messaging, and PostHog for product and website analytics. Premium subscriptions and App Store campaign attribution are processed through Apple App Store systems.

Data Storage

Your currency setup and alert settings may be stored in Firebase Firestore. A notification token may be associated with your anonymous account for push notification delivery. Exchange rates can be cached locally on your device for offline use.

Your Rights

If you delete the app, local app data is removed from your device. To request deletion of cloud data connected to your anonymous account, contact us.

Children's Privacy

Flexchange does not knowingly collect personal data from children under 13.

Changes

We may update this policy occasionally. Significant changes will be reflected by updating this page.

Contact

Questions? Email hello@flexchange.app.