User Cohort Retention Calculator

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Calculate user cohort retention rates and visualize them in a heatmap grid.

Cohort Size (Starting Users)

Active Users Per Period (Comma Separated, e.g. 800, 600, 450, 300)

Cohort	Starting Size	Period 1	Period 2	Period 3	Period 4	Period 5
New Signups	1000	-	-	-	-	-

Why Cohort Retention is Critical for Businesses

A cohort analysis groups users based on their sign-up date and evaluates how many return over consecutive periods. Tracking user retention helps software and subscription startups evaluate product-market fit and customer loyalty.

Foire aux questions

A cohort is a group of users who share a common characteristic, such as signing up for a product in the same calendar week.

Retention Rate = (Active users at the end of period / Cohort starting size) * 100.