Calendar Plus
Google Calendar extension for power users
Developed in >
Calendar Plus is a Chrome extension for Google Calendar. It provides insights into where your time goes, includes power user tools, data export and customization.
Main features:
Plot your week/month/year using Bar Chart, Pie Chart or a Time Chart
Adds ability to ghost an event (make it semi transparent and non-interactive)
Adds ability to condense the interface to have more space for events
Adds autocomplete for event names when creating events
Allows to automatically place events into correct calendars based on defined rules
Supports exporting plotted data and exporting/importing plugin settings
Video Demo
Screenshots






Motivation
I am a power user of Google Calendar and have every day planned in 15 minute increments. As a result, some shortcomings and missing features of Google Calendar become especially painful. This extension promises to save me lots of time, while providing insights into how much time I spent on different activities.
See also my full-fledged calendar application: Project Ephemeris
Early prototype of the extension
Things learned
The extension needs read-only access to user's calendar, which is considered by Google to be a sensitive API, thus applications looking to access that data need to pass extra security. To that end, in addition to the Chrome Web Store review, I needed to write a privacy policy, comply with "Sign in with Google" button branding requirements and pass a review by Google. The extension was rejected several times due to incomplete compliance, but after several tries it finally got approved.
Writing a privacy policy and complying with other requirements was an interesting experience. Having done it once, I can do it much faster for my second extension Goodreads Stats.