Edit entries however is most convenient for you. grammm syncs calendars on all devices simultaneously.
Access your calendar from anywhere

Wherever you go, your calendar is always with you. With the native EAS support, your calendar can also be easily managed with any application of your choice.



Working in a busy environment requires proper knowledge of your colleagues’ availability. With Free-Busy integration, you can make scheduling appointments as easy as possible, even with recommended time slots.


Appointment Invitations

grammm provides comprehensive support for all invitation-related appointments with tracking, scheduling management and more.


Recurring appointments and exceptions

With recurring appointments and exceptions, you can precisely align appointments, with exceptions, partial cancellations, and everything else needed to keep your schedule in line with your work.


Shared calendars / delegations

Using shared calendars for broader visibility often necessitated by business needs, such as supporting delegations, is provided out-of-the-box by grammm. Delegating rights to other colleagues has never been easier.