# movetheneedle.studio > movetheneedle.studio is a hands-on studio for iOS apps. It designs, builds, and measures changes to onboarding, paywalls, pricing, instrumentation, and App Store presence. One senior operator leads the work from scope through measurement. movetheneedle.studio is the implementation sibling of fatacquire.com. fatacquire diagnoses an iOS app and delivers a ranked roadmap; movetheneedle is the optional studio that builds those changes. A fatacquire report is complete on its own and never depends on hiring this studio. Many engagements begin from a fatacquire report, but one is not required to start. ## How an engagement works - It starts with an email conversation about the app and the metric the owner wants moved. - The work is scoped in writing: what changes, what it should move, and how both sides will know. - Senior iOS engineering ships the work in small reviewable increments. - Results are reported against the metric that was named at the start. ## Positioning - Premium, custom, one-on-one. The studio takes on a few engagements at a time. - A senior operator reads and replies to every email. - Engagement terms are discussed directly, after both sides understand the fit. ## Links - Home: https://movetheneedle.studio - Data & privacy: https://movetheneedle.studio/privacy - Email: studio@fatacquire.com - Sibling (diagnosis): https://fatacquire.com