Privacy in this workspace
Device-local plays stay in this browser’s local storage. Clearing site data removes them. Sign-in does not automatically upload them.
Accounts store identity, selected numbers, versions, drawing targets, optional purchase declarations, preferences and check history to provide the requested tools. Sign-in uses single-use email links. The local sample environment may offer a clearly labeled demonstration account.
You can export records or request deletion in Settings. Deletion immediately disables account access and future checks. The cleanup job removes online personal records within 30 days. Production backup retention and the maximum 35-day deletion window must be verified before launch.
We count successful page views to understand site usage. Full IP addresses are not stored in analytics: a keyed digest is used for deduplication, alongside the network prefix and approximate country, region and city provided by Cloudflare. Detailed traffic statistics are retained for 180 days; aggregate lifetime page-view totals are retained. Analytics do not store URL query strings, sign-in tokens or account identifiers, and add no tracking cookies. Logs avoid saved numbers and login tokens.