Technology

A server-side runtime evaluating pricing, paywall, and offer state per user at request time; an entitlement state machine reconciling App Store, Google Play, and web billing against experiment assignment — including refund, upgrade, and restore edge cases.

Hard problem

Binding price changes to experiment cohorts consistently across platforms, purchase flows, and refund paths — without an app release.

Differentiator

Pricing changes ship weekly, from the server, on every platform at once.