Proper attribution shall be made and/or displayed in a clear and visible way. In case your recorded beat is used in a sound recording, the attribution shall be displayed in the written information about the recording. In case your recorded beat is the background music of a video, attribution shall be made at the end of the video and/or in the written information displayed about the video, like the following:
This video features music created using Groovepad. Available on the App Store, https://apps.apple.com/app/id1454398991