![rw-book-cover](https://readwise-assets.s3.amazonaws.com/static/images/article0.00998d930354.png) ## Metadata - Author: [[olga|Olga]] - Full Title:: Refresher on Retention - Issue 236 - Category:: #🗞️Articles - Document Tags:: [[Data analysis|Data analysis]], - Finished date:: [[2024-12-13]] ## Highlights > I've never had luck with retention reporting from analytic tools such as Heap, Amplitude, Mixpanel, RevenueCat, and Chargebee, and I often have to replicate reports myself to ensure they are accurate and trustworthy. ([View Highlight](https://read.readwise.io/read/01jeyhx0bndgvsnfqm1md415cj)) > ![](https://substackcdn.com/image/fetch/w_2912,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdddd291d-5023-4ae6-924f-3dbd530961fa_1600x282.png) ([View Highlight](https://read.readwise.io/read/01jeyhz24yxfbn3j09zz5wqm85)) > ![](https://substackcdn.com/image/fetch/w_2912,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdddd291d-5023-4ae6-924f-3dbd530961fa_1600x282.png) ([View Highlight](https://read.readwise.io/read/01jeyhz26hg4j0pac5x53yz9q2)) > ![](https://substackcdn.com/image/fetch/w_2912,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdddd291d-5023-4ae6-924f-3dbd530961fa_1600x282.png) ([View Highlight](https://read.readwise.io/read/01jeyhz273hnwsag7n41gsws2z)) > For eco-system (North Star) reporting, the best approach is to use N-Day retention. If you must use Unbounded, then keep it for a shorter period of time frames - from 2 weeks up to 1 month. ([View Highlight](https://read.readwise.io/read/01jeyhzdj44sg89q51fevg31vt)) > N-Day retention is more sensitive in the short term and responds faster to improvements, which makes it best for reporting weekly or monthly KPIs. ([View Highlight](https://read.readwise.io/read/01jeyhzy8333vyjcj8teq1kw0h)) > Unbounded Retention naturally will underperform for newer cohorts vs older ones, as older cohorts **have a longer timeline to come back**. ([View Highlight](https://read.readwise.io/read/01jeyj02aqmd9dwnph6feqn51t)) > While Unbounded retention is useful for root-cause analysis, experimentation monitoring, and deep-dives, N-Day retention is recommended for KPI reporting. ([View Highlight](https://read.readwise.io/read/01jeyj08c5bftsbbmfb39w3kra)) > ![](https://substackcdn.com/image/fetch/w_526,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcb3bda70-cbb3-4ef8-aa42-a57ed2663431_1600x1213.png) ([View Highlight](https://read.readwise.io/read/01jeyj0fanvbvzx6g55smw9cy7)) > ![](https://substackcdn.com/image/fetch/w_526,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcb3bda70-cbb3-4ef8-aa42-a57ed2663431_1600x1213.png) ([View Highlight](https://read.readwise.io/read/01jeyj0fck8prf43n1b7nkyqy9)) > ![](https://substackcdn.com/image/fetch/w_526,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcb3bda70-cbb3-4ef8-aa42-a57ed2663431_1600x1213.png) ([View Highlight](https://read.readwise.io/read/01jeyj0fd7qvb3hfgdnxhm72cg)) > To make retention actionable, we need to segment or break it down. That’s why cohorted retention exists - it serves as a bridge to more proactive data monitoring. > [](https://substack.com/redirect/5cb90e5a-a9f1-4fbf-91ea-ae35204360f9?j=eyJ1IjoiNDRpMmEifQ.txKr3BEB06jM7pp-5wphmyXof7jFdPvpfRX5kIjhK8g) ([View Highlight](https://read.readwise.io/read/01jeyj15f31wp3mpcpzaxp17de))