This app is a Music Visualizer app. Generate visual effects from your music app, music library or microphone input. how to use 1. play a song in a music app 2. launch this app. When the full-screen ad is displayed, a close button will appear after a few seconds. Exported videos can be shared and used. If the app does not respond when it is first launched, please quit the app and restart it. About the Premium Edition In the free version, you'll see the app's watermark, banner ads, and full-screen ads after playing a song or after a certain amount of time has passed. And only some of the content is available. With the Premium version, you won't see watermarks and ads, and all the content is available. - This subscription will be automatically continued. - Deleting the app will not unlock the premium version. - It is possible to cancel (stop the automatic continuation) at least 24 hours before the end of the purchase period. - To cancel, please use your Google Play store account information. - It is not possible to cancel from this application. - The monthly fee will be billed within 24 hours of renewal of the purchase period. - Payment after purchase will be charged to your registered account in the Google Play store. How to use https://yuuki.ws/apps/spectrum/help EULA and Privacy Policy https://yuuki.ws/apps/spectrum/EULA-PrivacyPolicy.html