Time. Your most scarce resource. Understand how you spend it. Allocate time to the most important parts of your life. Monitor your progress over the week.
Listing updated:September 17, 2023
Works with:
Nature made time and energy our most scarce resources. We believe that every single person can make the most of these resources and achieve their full potential. This is why we created Calefficient.

Calefficient allows you to know how you spent your time. Allocate time to the most important things in your life and Calefficient will chart your time balance at any moment of the week.

How it works?

Calefficient analyzes the events in your Google Calendars and generates statistics sheets and charts on how you spent your time for a given period, e.g. current week or last month.

Schedule and log your activities in your Google Calendar, Calefficient will handle the rest :)


-> Life can be overwhelming, never forget to allocate time to the most important things in your life
-> Make better decisions. Every moment, consciously or unconsciously, you choose how you spend your time. Data-driven decisions are scientifically proven to result in better outcomes for you
-> Filter your commitments, always know what you are giving up when taking on a new commitment
-> Know exactly how you spend your time, plan accordingly
  * Integration with Google Calendar
  * Use a familiar and simple tool
  * Manage all your time in one place
  * Easy logging of events
  * Sync with your favorite calendar app


-> Weekly and monthly statistics
-> Charts for spent and allocated activities
-> Analysis for multiple calendars
-> Automatic update of the current week statistics sheet
-> Statistics for arbitrary start and end dates
-> Tags: analysis for event categories within a single calendar
-> Calendar renaming and grouping
-> Define weekly or monthly time targets per calendar or tag and monitor your progress
-> Do you multi-task? Define priorities for statistics and account for the most important activity only
-> Preserve Google Calendar colors in pie charts
-> Week start configurable to Monday or Sunday
-> Adjust charts to screen size
-> Flexible to your life changes: analysis settings can be configured per sheet
-> Global analysis settings can be reused
-> Load analysis settings to or from sheet

What you may be looking for: time management app, statistics, manage calendars, etc. You will find much more with Calefficient.

Made with ❤ by a theoretical physicist and a quantum engineer.
Additional information
PricingNot available
Privacy policy
Terms of service
Calefficient will ask for the permissions shown below. Learn more
Calefficient will need access to your Google account
This will allow Calefficient to :
See, edit, create, and delete all your Google Sheets spreadsheets
View events on all your calendars
See and download any calendar you can access using your Google Calendar
View your Calendar settings
Display and run third-party web content in prompts and sidebars inside Google applications
Connect to an external service
Allow this application to run when you are not present
See your primary Google Account email address
See your personal info, including any personal info you've made publicly available
Sort by:
Google doesn't verify reviews or ratings. Learn more about reviews
Profile Picture
Samson Assefa
December 7, 2020
Samson Assefa Gebrehiwot
Is this review helpful?
1-1 of 1
Clear search
Close search
Google apps
Main menu