Is that possible to log and track emails to HubSpot via Outlook, and Gmail mobile apps?

Many sales reps are using mobile and tablet apps for communicating with clients and prospects. They want their communication is logged and tracked in the HubSpot CRM.

Unfortunately, not at the moment. If you want your emails to be tracked and logged into HubSpot, you should use the HubSpot mobile app. This issue is raised in the HubSpot community, perhaps it will be implemented one day.