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# Cohort retention analyzer

Logo and revenue cohort retention heatmaps from activity CSVs or a cohort matrix, with weighted and simple averages.

Paste a CSV and press Build cohorts.

Logo retention divides the customers active in period k by the cohort size; revenue retention divides period-k revenue by period-0 revenue, so it can pass 100%. A customer who skips a period and comes back counts as retained again. The weighted average row divides summed actives by summed cohort sizes; the simple row means the observed cohort percentages. Caps: 20 MB input, 200,000 rows, 120 cohorts, 60 periods. Dates must be ISO (2024-01-15); other formats are refused rather than guessed.
OptionsBuild cohorts

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