18 March 2026
Retention curves that flatter the release
A rising D7 can hide the users who pay. How to cut the curve so finance and product see the same winter.
Journal
Letters we would still sign.
Short pieces from the studio. They are not platform tutorials. They are arguments about how app analytics should behave in a product room.
2 February 2026
Taxonomy debt, named early
A naming rule that survives the third PM, the second contractor, and a hurried SDK bump.
19 January 2026
North stars after the first million sessions
When the original compass starts spinning, and what a UK product team can retire without a ceremony.
8 December 2025
Winter cohorts and the calendar’s costume
Seasonality is not a footnote. How we read December installs without congratulating ourselves in January.