Last updated: 8 November 2026
calsync is a personal tool used only by its owner, to sync the owner's own calendars. It is not offered to other people. This page exists to describe how that single-user app handles data.
With the owner's permission, the app reads and writes events in the owner's Google Calendar and iCloud calendars (title, time, location, notes and reminders).
Calendar data is used only to copy, update and delete the owner's events between the owner's own calendars. It is not used for advertising, analytics or profiling, and it is not used to train any model.
The app keeps the minimum it needs to keep calendars in sync (event identifiers, content fingerprints and sign-in tokens) in a private database controlled by the owner. Data is not sold, shared or disclosed to anyone else, except where the owner chooses to publish a calendar feed to specific people.
The app's use of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements.
The owner can revoke the app's access at any time from their Google Account permissions page and delete the stored data by deleting the database.
Questions can be sent through the owner's GitHub profile: github.com/gmmoen.