CancelProof (the "Service") is a Chrome browser extension and website operated by Matan Boker, an individual ("we", "us", or "our"). For any privacy question, contact support@cancelproof.app.
Almost everything CancelProof creates is stored locally in your browser (using your browser's built-in storage) and never leaves your device through us. This includes:
We have no access to this data. If you uninstall the extension or clear your browser storage, this local data is deleted from your device, so we recommend keeping your own backups (see Section 5).
Proof Mode is designed to limit sensitive information in the evidence it captures. When it takes screenshots, it attempts to automatically obscure ("redact") sensitive input fields such as passwords and payment-card fields before the image is saved. This redaction happens on your device. Because websites vary, we cannot guarantee that every sensitive element is caught, so you should review your recordings before sharing them.
The extension requests only the permissions it needs to work, and some are requested only when you choose to use a feature:
| Permission | Why it is used |
|---|---|
| Per-site host access (requested on demand) | To run Proof Mode on a specific site you are cancelling. Requested only when you enable Proof Mode for that site, and removed when the session ends. |
| Screen capture / scripting | To capture screenshots of the visible tab and to place the recording overlay during a Proof Mode session you started. |
| Notifications | To send you reminders before a subscription charge or renewal date. |
| Downloads | To save your PDFs, Refund Packs, and backup files to your device. |
| Storage / sync | To store your data locally and, if you choose, to sync it through your browser account (see Section 5). |
We do not use these permissions to track your browsing, and we do not capture pages except during a Proof Mode session you have explicitly started.
After changes, CancelProof can write a rolling backup file to your device's Downloads folder. This file stays on your device; we do not receive it.
If you are signed in to your browser with a Google account and have browser sync enabled, CancelProof can use your browser's built-in sync so your data is available on your other signed-in devices. In that case the data is synced through Google's Chrome Sync infrastructure under Google's privacy policy — not through our servers, and we cannot read it. You can turn this off in your browser or by disabling sync for the extension.
The only part of CancelProof that involves our servers is licensing and payment. When you buy a paid plan or activate a license, we process:
| Data | Purpose |
|---|---|
| Email address | To issue and recover your license key and to provide support. We receive it from our payment provider at checkout. |
| License key | To identify your purchase and validate that a paid feature is unlocked. |
| Plan, credits, and validity dates | To know what you are entitled to (e.g. a Single Pack credit or an active Pro plan). |
| Payment references | Identifiers from our payment provider that link your purchase to your license. We do not store your card number. |
We do not send your subscriptions, screenshots, or Refund Pack contents to our servers. License validation and credit usage are checked using your license key only.
Payments are handled by Stripe. When you pay, your card details are provided directly to Stripe and processed under Stripe's privacy policy. We do not receive or store your full card details.
We use a small number of third parties strictly to operate the Service: Stripe (payments), a cloud hosting provider for the licensing server, Google's Chrome Sync (only if you enable browser sync, as described above), and an email-forwarding provider for our support address. Each processes data only as needed for these functions.
We do not sell or rent your personal data. We do not show you ads or use your data for advertising. We do not run third-party tracking or behavioral analytics inside the extension on the pages you visit.
Local data remains on your device until you delete it or uninstall the extension. License and billing records are retained for as long as needed to provide the Service and to meet legal, accounting, and tax obligations, after which they are deleted or anonymized.
You control your local data directly — you can view, export, or delete it from within the extension, and uninstalling removes it from your device. For the license and billing data we hold on our servers, you can ask us to access, correct, or delete it by emailing support@cancelproof.app. Depending on where you live, you may have additional rights under applicable data-protection law; we honor mandatory rights that apply to you.
CancelProof is not directed to children. You must be at least 18, or the age of majority where you live, to use the Service. We do not knowingly collect data from children.
We may update this Privacy Policy from time to time. When we do, we will update the "Last updated" date above and, for material changes, take reasonable steps to let you know.
Questions or requests about your privacy can be sent to support@cancelproof.app.