Your reading is yours.
Full stop.

What we collect

Nothing. Stacks does not collect, transmit, sell, or share any personal data. There is no backend operated by us, no account registration, no advertising, and no third-party analytics or tracking SDKs.

Where your data lives

Articles, podcasts, images, your reading history, and your settings are stored only on your iPhone. They are never uploaded to us, because there is no "us" to upload to. Deleting the app deletes this data; you can also use Settings → Reset All Data inside the app at any time.

Network requests the app makes

To download content, Stacks talks directly from your device to the publications you choose:

• The Substack publications and RSS feeds you add, to fetch their public posts, images, and audio.
• If you optionally enter a Substack handle, Substack's public API, solely to look up the publicly visible publications associated with that handle.

These requests go to those services under their own privacy policies, exactly as if you had visited them in a browser. Stacks adds no identifiers of its own.

Optional Substack sign-in

You may optionally sign in to Substack inside the app to discover the publications you follow. Your session credential is stored in the iOS Keychain on this device only, is never synced or transmitted to us, and is removed when you sign out or reset the app.

Children

Stacks does not knowingly collect data from anyone, including children, because it collects no data at all.

Changes to this policy

If a future version of Stacks ever changes any of the above, this page will be updated before that version ships, and the change will be called out in the App Store release notes.

Contact

Questions about privacy? Write to [email protected] or visit the support page.