OFFICIAL PAGE: Vocal Extractor (Apple App Store Preview)
Vocal Extractor (on the Google Play Store)
Vocal Extractor, which makes use of Deep Learning technologies, is available as a free download for iOS and Android. The app will take a mono or stereo source file and return the vocal(s) and instrumental backing as two separate tracks. The developer is charging US$2.99 as an in-app purchase to unlock the ability to save your results. The results, even with mono source material, were quite impressive! The latest paid version of the app allows you to save your results as AAC or uncompressed WAV files and is now utilizing Spleeter for better results. The app is available in the Apple App Store and at the Google Play Store. Details are available at the links above.
Screenshot courtesy of Christopher Kissel