Forced premium subscription now!?!?

Ive used this app for years and have loved playing it with my kids. I paid the $10 back then for the full version and now I cant even filter caches without paying!? You guys are going to lose a lot of players that way. How can I go back to the previous version? Id really like a response because I filter to only the large caches to enjoy with my kids. The micros are boring to them without swag.

JayWheels about Geocaching®, v4.8.1