An ad solution where the device calendar feature is used in a smart way for a personal experience. A clickable ad that easily allows the advertiser to add a calendar event with a reminder in the user’s device.

  Integrates with the users’ built-in calendar
  Engaging reminder stored in user’s device





Title of the event (maximum 60 characters), start time and end time, description (maximum 60 characters), date and time of the reminder.


The banner copy should contain a clear call to action such as “Add event(s) to your calendar“.
For image requirements, see specification for Medium Rectangle.

  Third-Party Script Tags

This format can not be delivered as a third-party script tag, see also section “Delivery”


Widespace always tracks clicks and impressions. Third-party tracking can also be implemented:

  • 1 impression tracker
  • 1 click tracker

Must support HTTPS.

  Lead Time

3 working days prior to campaign start, provided that all material is delivered according to the specifications in this document.


Send all material to

Supported environments
iOS 7 and up (mobile web and app).
Not Android.

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