Privacy Policy

Effective date: February 23, 2026

GrandLineFinder is a collectibles search and grading tool.

It uses local browser storage and cloud services for features such as alerts, paid grading credits, and service reliability.

Data we collect

Local browser data such as grading session keys, saved alerts, grading history, and optional admin token entries.

Alert data you submit, including query, target price, optional email, optional webhook URL, and selected filters.

Billing metadata needed for paid features, such as Stripe customer and subscription identifiers.

Service and security records, including rate-limit and operational logs.

To provide search, alerts, and grading-credit functionality.

To process payments and manage subscriptions/credits.

To prevent abuse, enforce rate limits, and monitor reliability.

Payments are processed by Stripe.

We do not store full card numbers on our servers.

We use providers such as Firebase and Stripe to operate the service.

You can clear local browser data at any time from your browser settings.

You can request account or cloud-data deletion at support@grandlinefinder.com.

GrandLineFinder lets you submit card photos and run grading scans in the app.

Quick Grade provides a fast result flow, while Pro Grade supports deeper workflows and paid credits.

Paid actions are handled through Stripe checkout, then credits and plan status are updated in the app.

Open the app from the header or footer link and upload front/back images for a card.

Run Quick Grade for standard output, or choose Pro options if you need premium grading flows.

Use alerts and saved settings to track targets, then manage billing and subscriptions from the billing page.

Do you sell personal data? No. GrandLineFinder does not sell your personal data.

Where is my grading history stored? It is primarily stored in your local browser data unless a cloud feature requires server-side storage.

How do I stop emails or alerts? You can disable alerts in the app and contact support@grandlinefinder.com for help removing cloud alert records.

How can I delete my data? You can clear browser storage yourself and request deletion of cloud records at support@grandlinefinder.com.