Creative Preview is a free app developed by Google Inc. for Android devices in the Utilities & Tools category. It enables ad developers to test mobile ads directly on a smartphone or tablet before going live. The app allows users to push an ad to their mobile device through the integrated workflow in Google Marketing Platform products or manually add a creative URL.

Users can test on their device using the supported mobile ad SDKs or in any mobile browser, and review reporting metrics for Studio or video creatives in the app's console. With Creative Preview, users can preview and test display and video creatives directly on their mobile device. They can sync pushed creatives to get the latest updates and add creatives to favorites on their device for quick access.

Supported mobile ad SDKs include Google Mobile Ads and Interactive Media Ads (IMA). The app requires permissions for camera, microphone, and storage, which are needed to scan QR codes, preview creatives using mobile ads SDKs that support audio recording, and attach photos, videos, and local files for submitting app feedback.

Overall, Creative Preview is a useful tool for ad developers to ensure that their mobile ads are functioning properly and providing the best user experience possible.