🧠Settings → Advanced

Canonical page for dangerous or rare app switches: delete, custom JS gate, and other advanced flags.

What this is / when to use it

Advanced is the pane you open on purpose. Most makers never need it after the first publish.

You understand delete is irreversible for the NotionApps app (Notion data stays).

Open Settings → Advanced.
Use Custom JavaScript only if the plan allows it and you have read the how-to.
Delete app — type the name, confirm. See Start from a template.
Leave feature flags you do not recognize alone.

Control

What it does

Custom JS

Plan-gated. How-to stays the job page.

Delete app

Removes the app, URL, and builder history.

Experimental flags

Internal or entitlement-gated. If a flag is undocumented, do not treat a stub as coverage.

Nothing unless you ship custom JS that changes the chrome.

Custom JS and some flags are entitlement-gated.

Delete a failed clone after you confirm the source app is intact.

Deleted the wrong app: restore from a clone if you have one. Notion rows are still in Notion.

Plans. Hire an expert if you need JS you do not want to own.