Privacy Policy

AltTab (SIRET: 10356400100016) is committed to protecting your privacy. This policy explains what data AltTab collects and how it is used.

What we collect

Almost nothing. The AltTab app is designed to work entirely on your device. The sections below apply to all users, free and paid.

If you purchase AltTab Pro, we additionally store a small amount of account data to deliver and validate your license — see AltTab Pro accounts below.

Usage statistics

AltTab tracks usage data such as how many times you switch windows. This data is calculated and stored locally on your device only. It is never transmitted to us or any third party.

Crash reports

If the application crashes, you may be prompted to send a crash report. This is optional and requires your explicit consent each time. Crash reports are sent to Microsoft AppCenter and contain technical diagnostic information (crash logs, device model, macOS version, app version). They do not contain personal data such as your name, email, or window contents.

Update checks

AltTab periodically checks for updates using the Sparkle framework. This connects to our server to compare your installed version with the latest release. No personal data is transmitted during this check. Your IP address is visible to the server as part of the network connection.

Feedback

AltTab includes an optional feedback form. If you submit feedback, it is posted as a public issue on AltTab’s GitHub repository. Do not include personal information in your feedback unless you are comfortable with it being publicly visible. No account or email is required to submit feedback.

AltTab Pro accounts (paid users only)

If you purchase AltTab Pro, we create an account tied to the email address you used at checkout. This section does not apply to free users.

What we store. On our servers we store:

• Your email address — the key we use to find your license.
• Your license key — a randomly generated identifier we send you.
• A device fingerprint for each Mac you activate the license on (a hardware identifier derived from macOS’s IOKit UUID). A license can be activated on up to 3 Macs.
• Your Stripe customer ID and checkout session ID — so we can link your purchase back to Stripe for refunds, chargebacks, and receipts.
• A copy of each payment webhook event we receive from Stripe, kept so we don’t process the same event twice.

What we do not store. Your card number, full billing address, and other payment details never reach our servers — Stripe collects and stores them directly.

Why we store it. To deliver your license key, validate that AltTab Pro is running on one of your activated Macs, process refunds and chargebacks, and let you manage your license yourself.

Where it is stored. In a Cloudflare D1 database (SQLite), hosted by Cloudflare alongside the backend Worker. See Third-party services below for what that means.

License validation. When AltTab Pro is running, it periodically contacts our backend at alt-tab.app/api with your license key and device fingerprint to confirm the activation is still valid. No other personal data is sent.

My Account. You can sign in at alt-tab.app/my-account using a magic-link email (a one-time link valid for 15 minutes). Signing in sets a session cookie on .alt-tab.app that expires after 7 days. From your account you can view your license, deactivate a Mac, resend the license email, view receipts and invoices (via Stripe’s billing portal), and request a refund.

Retention. License records are kept while your license is active. We keep a minimum history beyond that to handle refunds, chargebacks, and tax/accounting obligations set by Stripe and applicable law. Webhook event logs are kept for idempotency.

Deletion. To delete your account data, email [email protected]. Note that deleting the record also deactivates AltTab Pro on every Mac tied to that license.

Third-party services

Applies to all users unless marked otherwise.

• Microsoft AppCenter (optional crash reports): subject to Microsoft’s privacy statement.
• Sparkle (update checks): connects to GitHub and our server. No personal data transmitted.
• GitHub (feedback form): submitted feedback is posted as a public issue. Subject to GitHub’s privacy statement.

The following additional services are used only for AltTab Pro (paid) users:

• Stripe (payment processing, merchant of record): receives your email and billing information at checkout, and stores your payment method. Subject to Stripe’s privacy policy.
• Cloudflare (backend hosting, D1 database, Workers Logs): hosts the alt-tab.app/api backend and the license database. Cloudflare sees request metadata such as IP address and country, and stores anything we write to D1. Subject to Cloudflare’s privacy policy.
• Mailjet (transactional email): sends your license-key email, magic-link sign-in emails, and refund-request emails. Receives your email address and, where relevant, your license key in the email body. Subject to Mailjet’s privacy policy.

Data storage and retention

For all users, we store no personal data on our servers. Crash reports sent to AppCenter are retained according to Microsoft’s data retention policies.

For AltTab Pro (paid) users, we additionally store the account data described in AltTab Pro accounts, in a Cloudflare D1 database. Retention is covered in that section.

Your rights

Under the EU General Data Protection Regulation (GDPR), you have the right to access, correct, or delete any personal data. For free users, AltTab does not collect personal data, so there is typically nothing to request.

For AltTab Pro users, email [email protected] to exercise these rights over your license account. For data Stripe holds about your purchase (cards, billing address, receipts), contact Stripe directly using the instructions in their privacy policy.

Children’s privacy

AltTab does not knowingly collect any data from children under 16.

Changes to this policy

This policy may be updated from time to time. Changes will be posted on the AltTab website.

Contact

For any privacy-related questions: [email protected]