And downloads of 5-0 Radio Pro Police Scanner, which costs $5 to install, spiked 9.5 percent from 158 on May 22 to 1,657 on June 2. Downloads of the free version of the app increased 3-percent.

Adobe Scan is also a good scanner app for Android, but be aware that you’ll need to sign in to use it; it would’ve been nicer to use without creating an account or signing in via Google, but ...

Rival apps like Police Scanner Radio & Fire and Citizen also rose to be in the top-10 list on both Google Play and the Apple App store. They have since fallen but remain in the top 30.