Why implement analytics in web applications?

Analytics is implemented in web applications to:

#1. Understand user behavior

Where they click, what they ignore, how far they get, and where they leave. Without this, a product is blind, it's unclear what works and what doesn't.

#2. Evaluate the effect of changes

Changed the form design, did registrations go up or down? Analytics shows this clearly, in numbers, not feelings.

#3. Find bottlenecks

Are users massively abandoning the cart before checkout? Maybe a bug, a fear, or an inconvenience, metrics will show the exact drop-off point.

#4. Segment the audience

New and returning users behave differently. Some are on desktop, some on mobile. Analytics lets you draw conclusions by group.

#5. Make product decisions

What to develop, what to remove, where to invest resources. Without analytics, it's guesswork.

#6. Justify business results

Is the product working? What conversion rate does it give? Where is revenue growing? All of this comes only through numbers.

Summary: without analytics, a web application simply exists. With analytics, it develops.