Privacy Policy for RTL: Research Sync

Last updated: June 20, 2026

RTL: Research Sync (“the app”) is designed to respect your privacy. This document explains what data the app handles, where it is stored, and how it is used.

Summary

RTL: Research Sync does not collect personal information about you. The only data it stores is the URLs and page titles you explicitly choose to save, along with read/unread status and timestamps. That data is stored on your own devices and synced between them via a small cloud relay operated by the developer, solely so your saved list stays up to date across your iPhone, iPad, and browser. It is never sold, and never shared with any third party.

Data the app stores

When you save a page, the app stores:

• The URL of the page
• The title of the page (typically the <title> of the HTML document)
• A timestamp for when you saved it
• A timestamp for when you last changed it
• A read/unread flag
• A flag marking whether you've deleted it, so the deletion can sync to your other devices
• Any optional notes / context that you add to the notes field for a URL

That is the entirety of what is stored. The app does not collect or transmit:

• Your name, email address, or any account information
• Device identifiers, advertising identifiers, or IP addresses
• Your browsing history outside the pages you choose to save
• Location data
• Analytics, telemetry, or crash reports of any kind
• Contacts, calendar, photos, or any other on-device data

Where the data is stored

Saved items are stored in two places:

1. A local container on each device (an App Group container on iOS, or the browser’s local extension storage) so the app and any browser extension can read and write to the list immediately, even offline.
2. A cloud sync store, hosted on Cloudflare Workers and operated by the developer, used solely to relay your saved list between your own devices. Access to this store requires a private key built into the app and extension; the developer does not separately access, read, or analyze the contents.

The only network calls the app and extension make are to this cloud sync service, to push and pull your own saved list.

Browser extension

An optional Chromium browser extension (for Dia, Chrome, Edge, Arc, Brave, etc.) is available separately. It stores the same fields (URL, title, timestamps, read flag, deleted flag, notes) using the browser’s local extension storage, and syncs them with the same cloud sync service described above.

Permissions the iOS app requests

• Network access — to sync your saved list with the cloud sync service described above, across your own devices.
• Share Extension activation — when you choose Read Later from the iOS share sheet, the extension reads the URL being shared so it can save it. It does not read anything else.
• Safari Web Extension permissions — when enabled in Safari, the extension reads the URL and title of the page you are currently looking at, but only when you tap its toolbar icon.
• Siri / Shortcuts intent — when you invoke “Save to Read Later” via Siri or Shortcuts, the URL you provide is saved.

Third parties

Read Later does not use any third-party analytics, advertising, crash-reporting, attribution, or tracking SDKs. There are no third parties with access to your data.

Your control over your data

You control your saved list completely:

• Delete an individual saved item from within the app or extension at any time — the deletion syncs to your other devices.
• Uninstall the app, which removes all locally stored data on that device.
• To request removal of your data from the cloud sync store, contact the developer at the email address below.

Children’s privacy

The app is not directed to children under 13 and does not knowingly collect any personal information from anyone, regardless of age.

Changes to this policy

If this policy changes in a meaningful way, the updated version will be posted at this URL and the “Last updated” date at the top will be revised.

Contact

Questions or concerns about this privacy policy: shearm@mac.com