The short version
This policy describes what limited data Stackscraper and its website do collect, why, and how it is handled. We have tried to write it plainly. If anything is unclear, email us.
What we collect
We separate the extension from the website because they operate very differently.
| Data | Source | Stored where | Shared |
|---|---|---|---|
| Substack thread content, posts, comments, replies | Extension (local) | Your device only | Never |
| Anonymous quota identifier (free tier) | Extension, free plan | Cloudflare quota server | Quota only |
| Export count and last-export timestamp (Pro) | Extension (local) | Chrome local storage | Never |
| License key | Extension activation | Chrome local storage | Validation only |
| Email address | Purchase checkout | Payment processor | Processor only |
| Page views, referrer, country (no personal data) | stackscraper.com visits | Cloudflare Web Analytics | Never |
Local processing in detail
The Stackscraper Chrome extension reads the current page in your browser using the same session cookies your browser already holds. It does not inject credentials, prompt for your password, or store your Substack login details.
Free plan: quota tracking
To enforce the free plan monthly export limit, the extension sends an anonymous identifier to a quota tracking server hosted on Cloudflare. This identifier is either a hashed Google account ID (if you are signed into Chrome) or a randomly generated install ID. No direct identifiers such as your name or email address are transmitted. The identifier is used solely to count exports and reset the counter monthly. It is not linked to your identity and cannot be used to track you across other services.
Pro plan: resume state
If you are on the Pro plan, Stackscraper saves the timestamp of your last export to Chrome's local storage so it can resume from that point on the next run. This data lives only on your device and is not transmitted anywhere.
Permissions used
The extension requests the permissions needed to read Substack pages you are actively viewing. It does not request access to other browser tabs, your browsing history, or any other site. You can review the exact permissions in the Chrome Web Store listing at any time.
Website and marketing
The stackscraper.com website uses Cloudflare Web Analytics to understand which pages are visited and where traffic comes from. Cloudflare Web Analytics sets no cookies, uses no localStorage, and does not fingerprint visitors. No consent banner is required for the analytics script itself. Note that other Cloudflare infrastructure features active on the site may set necessary technical cookies independently of analytics.
We do not use advertising pixels, retargeting scripts, or third-party tracking of any kind. If you contact us by email, we store your message and email address to respond to you.
Payment processing
Pro plan purchases are processed by Lemon Squeezy. When you purchase, your payment details are entered directly on Lemon Squeezy's checkout and are never seen or stored by Stackscraper. Lemon Squeezy sends us your email address to deliver the license key.
Lemon Squeezy's privacy practices are governed by their own privacy policy, available at lemonsqueezy.com.
Third-party services
Stackscraper uses a small number of third-party services. We do not sell data to any of them.
| Service | Purpose | Data shared |
|---|---|---|
| Lemon Squeezy | Payment processing and license delivery | Email, order ID |
| Cloudflare Web Analytics | Cookieless, anonymized page view metrics | No personal data |
| Email (support) | Customer support | Your email and message content |
We do not share data with data brokers, advertising networks, or any other parties not listed above.
Data retention
We keep purchase records, including your email address and license key, for as long as your license is active and for a reasonable period thereafter to handle any billing disputes. Support emails are kept until resolved and periodically cleared.
Because the extension stores nothing on our servers, there is no export data for us to retain or delete on your behalf. If you uninstall the extension, Chrome removes all local storage data associated with it.
Deleting your data
If you want us to delete your email address and purchase record, email us at the address below. We will remove it within 30 days unless we are legally required to retain it for billing purposes.
Your rights
Depending on where you are located, you may have rights under applicable privacy law, including GDPR if you are in the EEA. These include the right to access, correct, or delete personal data we hold about you, the right to object to or restrict processing, and the right to data portability.
Because we hold very little personal data, most requests can be resolved quickly. Contact us at the address below and we will respond within 30 days.
If you believe we have not handled your data correctly, you have the right to lodge a complaint with your local data protection authority.
Children's privacy
Stackscraper is not directed at children under the age of 13. We do not knowingly collect personal data from anyone under 13. If you believe a child has provided us with personal data, contact us and we will delete it promptly.
Changes to this policy
We may update this policy as the product evolves. When we make material changes, we will update the "Last updated" date at the top of the page. Continued use of the extension or website after a change constitutes acceptance of the updated policy.
We will not reduce your rights under this policy without notifying you directly if we hold your email address.
Questions
If you have any questions about this policy or want to exercise your rights, reach out directly.
Get in touch
We typically respond within one business day. For support questions about the extension, the same address applies.
[email protected]