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PinToku Privacy Policy
Last updated: July 19, 2026
PinToku ("the extension") is a Chrome extension that saves web pages and organizes them with AI-generated summaries and tags. This policy explains what data the extension handles and how.
Principles
- On the free plan, your saved data never leaves your device. All processing (summarization, tagging, search) runs locally
- On the paid plan, data is transmitted only for the purposes explicitly described below
- No analytics, no ads, no tracking
Data we store and collect
Stored locally on your device (all plans)
- URL, title, article text, thumbnail, summary, tags, and read status of saved pages
- Extension settings
These are stored in Chrome's storage (chrome.storage / IndexedDB) and are never transmitted externally on the free plan (except Chrome's own download of the on-device AI model).
Transmitted externally on the paid plan
- Cloud summarization: The text, title, and URL of a saved page are sent via a developer-operated proxy server (Cloudflare Workers) to Anthropic's Claude API to generate a summary and tags. The proxy does not store page content — it is discarded after processing
- Sync: To sync across devices, item metadata (URL, title, status), summaries, and tags are stored on the developer's server. Page content is never synced or transmitted. Deletion records are kept for up to 90 days, then permanently removed
- Billing / license verification: Payments are processed by ExtensionPay and Stripe. Your email and payment details are handled by those services; our server does not store payment information. An anonymous user identifier is used for license verification and rate limiting
We do not sell or share your data
We never sell, share, or transfer your data to third parties. External transmission is limited to the services above (Anthropic / ExtensionPay / Stripe / Cloudflare), solely to provide the extension's features.
Data deletion
- Local data: removed when you uninstall the extension
- Synced data: deleting an item removes it from the sync server. To request deletion of all data tied to your account, contact us below
Permissions
| Permission | Purpose |
|---|
| activeTab / scripting | Extract the article from the current page only when you save it |
| storage / unlimitedStorage | Store saved pages and settings locally |
| sidePanel | Show your saved items and the triage UI |
| contextMenus | Save pages / open the panel from the right-click menu |
| commands | Save pages with a keyboard shortcut |
| alarms | Resume interrupted summarization jobs in the background |
The extension does not request access to all sites (<all_urls>) or your browsing activity (tabs).
Changes
Material changes will be announced on this page and in the extension's release notes.
Contact
Email: spinach415@gmail.com
Operator: Spinach Works