Great Casterton studio · GB cohorts
Agentstreamgrid teaches App Experiment Readout Systems: how to turn a completed app test into a memo a sceptical product lead can actually use. We start after the flag is shipped, not at the hypothesis whiteboard.
“We stopped pasting p-values into Slack. The studio forced a recommended action, a kill condition, and one paragraph on what the sample could not tell us.”Priya N., growth lead, consumer fintech · Experiment Readout Studio, autumn 2025
Flagship
Seven modules · live clinic · informational fee from £1,180
A working programme for people who already run app experiments and keep losing the room in Friday review. You leave with a reusable readout stack: pre-registered layers, instrumentation checks, and a memo length that leadership will actually finish.
What we insist on
Every write-up opens with the choice the experiment was meant to inform: ship, hold, iterate, or retire. Charts appear after that sentence, never before.
Primary, guardrail, and diagnostic metrics stay in labelled bands so a secondary lift cannot quietly rewrite the story in the last five minutes of a meeting.
Nulls, thin slices, and broken assignment logs belong in the memo. Silence is how teams invent significance later in a slide deck.
Desk notes
Recent pieces on null results, metric trees for mobile rollouts, and write-ups that survive a leadership review.
