Is Internet connection required?

Internet connection is not required for normal operation.
Internet connection is required for a short time after Poweramp purchase.

Poweramp (main app):
- uses optional Internet connection for Album art downloading and Support.
- for Website purchase, license is checked via Internet once after Unlocker installation and Poweramp next start, and if the check is successful, then it's never checked again, unless Poweramp is reinstalled, Poweramp data is cleared, system is reset, or ROM is updated

Poweramp Unlocker:
- for Play purchase license is checked via Internet within first 24 hours after Unlocker installation and Poweramp next start, and if the Google Play Store check is successful, then it's never checked again, unless Poweramp is reinstalled, Poweramp data is cleared, system is reset, or ROM is updated

If license check is failed, Poweramp will try to check it until it fails completely in few attempts.

Poweramp v2: license failure timeouts are very long, hours or days, but timeouts immediately reset when Internet is not available causing license error.
Poweramp v3: license failure timeouts are short, Poweramp will complain about license almost immediately to avoid unexpected license failure error when Internet is not available later.