On free and Sync plans, requests go straight from your browser to the provider; Omni's infrastructure is not in the path. Only Pro and Max route through Omni, and only so spend is metered.
Yes. Redaction is destructive by design: pixelation is baked into the exported pixels rather than overlaid, so redacted data cannot be recovered from a saved, exported, or shared file.
Canceling stops the next renewal and access continues to the end of the paid period. After a downgrade, a 30-day grace window applies before higher-tier storage is purged.
On the free and Sync plans your key lives in chrome.storage.local on your machine, never in chrome.storage.sync, so the credential is not replicated into your Google account.
Two answers: a local model for inference, and local templates. Free-plan templates are local to the machine, and a local model keeps every request on your own device.