Vocus.io is a lightweight Gmail-only tracker with mail merge and team templates priced at $5 to $20 per user per month yearly. It works for small Gmail-based outbound teams running moderate mail-merge volume on a budget. Teams typically search for alternatives when they add an Outlook user, when the basic tracking stops being enough for follow-up routing, or when they need stronger sales engagement features.
These are the five Vocus.io alternatives worth evaluating, organised by which Vocus.io limitation you are most trying to fix.