OpinionAPP is a free iPhone application developed by Cint AB. It falls under the lifestyle category and offers users the opportunity to answer surveys and earn rewards.

The app combines all the survey panels that users have signed up for and presents them in real-time through a single application. This means that users can conveniently access all their surveys in one place, without the need to switch between multiple apps or websites.

Getting started with OpinionAPP is quick and easy. Users simply need to download the app and log in using the same email address they use for their survey panels. There is no commitment required, and the app is completely free to use.