Yes — on Google Play
Ventra has a Google Play listing.
App Store
On Google Play
Is Ventra on Android?
About Ventra
Ride CTA, Metra & Pace with Ventra: Manage your fares, buy Metra mobile tickets, get arrivals and add your Ventra Card for riding CTA and Pace to iPhone and Apple Wallet. Use transit in and around all of Chicago: It's easy to manage and pay your fare on CTA, Metra and Pace buses and trains with the Ventra app. Find a…
Ventra is listed on both the App Store and Google Play from Chicago Transit Authority, so you can install it on Android phones and tablets. The Play Store listing shows 1,000,000+ installs.