It depends.
- YES, if you will be streaming your accomplishments to other accounts. For example, if you want to make your accomplishments accessible to your supervisor (who also has an ExSlacker account), and also want them to get notified when you add an accomplishment.
- NO, if you will just be viewing and providing feedback to accomplishments of others. For example, if you have direct-reports that use ExSlacker (pro users), you will be able to accept their stream requests, view their accomplishments, and provide feedback on their accomplishments under a free account.