Caliper blogMobile attribution measurement: self-reported attribution, SKAN triangulation, and HDYHAU survey methodology.https://withcaliper.com/'People don't remember how they heard about you' is a testable claimhttps://withcaliper.com/blog/do-people-remember-how-they-heard/https://withcaliper.com/blog/do-people-remember-how-they-heard/The standard objection to survey-based attribution gets repeated as fact. It's actually a hypothesis — and the spend-share test is how you check it.Wed, 10 Jun 2026 00:00:00 GMTApple said nothing about attribution at WWDC. That's the news.https://withcaliper.com/blog/wwdc-2026-attribution-silence/https://withcaliper.com/blog/wwdc-2026-attribution-silence/For the first time since AdAttributionKit's introduction, WWDC came and went with zero measurement updates. Both readings of the silence point to the same conclusion.Wed, 10 Jun 2026 00:00:00 GMT'How did you hear about us' options: the list that works for mobile appshttps://withcaliper.com/blog/how-did-you-hear-about-us-options/https://withcaliper.com/blog/how-did-you-hear-about-us-options/A copy-paste option list for mobile HDYHAU surveys, and the reasoning behind every line — what to include, what to merge, and what to leave out.Tue, 09 Jun 2026 00:00:00 GMTIn-app surveys: best practices, and the one survey most apps never runhttps://withcaliper.com/blog/in-app-surveys/https://withcaliper.com/blog/in-app-surveys/NPS and CSAT measure satisfaction. The attribution survey measures acquisition — different rules for timing, audience, and where the answers land.Tue, 09 Jun 2026 00:00:00 GMTMobile app attribution: every method, and what each one can't seehttps://withcaliper.com/blog/mobile-app-attribution-methods/https://withcaliper.com/blog/mobile-app-attribution-methods/Last-click, SKAN, probabilistic, MMM, incrementality, and self-reported attribution — what each method actually measures, and the blind spot each one carries.Tue, 09 Jun 2026 00:00:00 GMTHow to ask 'how did you hear about us' without ruining the answerhttps://withcaliper.com/blog/how-to-ask-hdyhau/https://withcaliper.com/blog/how-to-ask-hdyhau/The question is trivial to ask and easy to ruin — the failure modes are mechanical, and so are the fixes.Fri, 05 Jun 2026 00:00:00 GMTSelf-reported attribution is deterministic. SKAN isn't.https://withcaliper.com/blog/self-reported-attribution-is-deterministic/https://withcaliper.com/blog/self-reported-attribution-is-deterministic/Post-ATT, the under-used third leg of measurement is asking the user — deterministic at the install level for the channels no postback will ever cover.Fri, 05 Jun 2026 00:00:00 GMTThree reports, one numberhttps://withcaliper.com/blog/three-reports-one-number/https://withcaliper.com/blog/three-reports-one-number/The morning ritual of reconciling three attribution numbers that never agree, and why the survey is the only one that sees the channels with no click.Fri, 05 Jun 2026 00:00:00 GMT