Does Rhythm Lab have in-app purchases? January 19, 2018 by Jonathan Ensminger No. All features are available as a single purchase when you purchase and download the app. Does Rhythm Lab require a subscription? What types of rhythm exercises are available? Jonathan Ensminger Related articles AirDrop and Rhythm LabRhythm Lab 3.2.4Custom Tuplets TutorialFAQs added to websiteRhythm Lab 3.2 is here…Rhythm Lab – Good MentionsNew website design