The native integration of Salesforce and Bloobirds has an extensive configuration set that allows you to decide how and when both systems are updated and synced.
Depending on the configuration of the account, it may be that only some or none of the activities are synced in both systems. The account administrator will be able to give more information about what settings exist in the account. For example, if we only send Bloobirds activities to Salesforce, if any activity is performed directly on Salesforce, it will not be recorded in Bloobirds.
On the other hand, another reason for discrepancy of activities could be the time it takes for the activity to "travel" from one system to another. For example, a call made from the Bloobirds dialer will show up in Bloobirds within seconds, but if we want to see it in Salesforce it could take up to 2 minutes.