This is a proposal for an open-source user analytics tool that I would be OK with using on my Blockstack apps.How it could work<ul><li>Open-source tracking code for App developers to use</li><li>Code adds an App popup for the user to opt-in into public analytics (or this could be custom built by the App developer)</li><li>App developers can pick which pages to track, and add custom events (and need to avoid tracking any personal data)</li><li>Tracked data gets saved locally and dumped every once in a while to user's Gaia hub to a known file location (that file can be capped at 5MB for example)</li><li>If the app requests (publish_data) permission, profiles can be crawled to compile all public user analytics files. If not, the clients must ping an aggregation server the app must run.</li><li>An open-source analytics tool can aggregate user analytics files and show a dashboard.</li></ul>Extra features<ul><li>Usage data can be part of a Collection</li><li>Another app could show the user his/her usage across all Blockstack apps using this analytics tool</li><li>This would be a good incentive for users to opt-in into public usage tracking</li></ul>Note: this would be a tool for developers to learn how users are using their apps, and not for ranking apps.

Blockstack Public User Analytics Tool