Sync your visited/tier/notes data to a Google Sheet so it persists forever and syncs across devices.
- Open Google Sheets and create a new blank spreadsheet
- In the spreadsheet, click Extensions → Apps Script
- Delete any existing code and paste the script below, then click Save → Deploy → New deployment
- Set type to Web app, execute as Me, access to Anyone. Copy the web app URL
- Paste the URL here and click Connect