Individual tool or team system
This is the fundamental split. A follow-up tool optimises one person's speed. A CRM optimises a team's coordination: assignment, escalation, coverage and a manager's view. Neither is better in isolation; they solve different problems.
Deployment and where data lives
Both are cloud products, so the question is not hosting but ownership. Ask each vendor whether records belong to the workspace or to the user, and what happens to a departing employee's leads. In markets where agent turnover is high, that answer has real commercial value.
Breadth versus depth
A narrow tool does one thing quickly and expects you to add the rest. A broader CRM covers pipeline, automation and reporting and asks for a little more setup. Decide which you will need six months from now, not today.
Implementation effort
Low for both, and dominated by your own decisions rather than by the software. Agree stages, assignment rules and the definition of a qualified lead first, and clean the lists you plan to import.
Channel coverage
For Indian buyers this decides more than anything else on the page. Ask both vendors what is native for WhatsApp and calling, whether the WhatsApp number is a shared business number, and whether managers can review conversations without borrowing a handset.