Apps like Parks Seeker

Here are some great alternatives to Parks Seeker by Mark Sandell :
National Park Guides - Chimani
National Park Guides - Chimani
★3.6
National Parks Passport Book -
National Parks Passport Book -
★3.9
National Park Service
National Park Service
★4.9
National Park Guide
National Park Guide
★4.6
NSW National Parks
NSW National Parks
★4.1
GuideAlong | GPS Audio Tours
GuideAlong | GPS Audio Tours
★4.6
Natparks
Natparks
★4.8
National Park Trail Guide
National Park Trail Guide
★4.2
Yellowstone: Match Park Royal
Yellowstone: Match Park Royal
★4.6
Travel Mapper: Where I've Been
Travel Mapper: Where I've Been
★3.8
Acadia National Park GPS Tour
Acadia National Park GPS Tour
★4.0
Custer State Park
Custer State Park
★4.5
Six Flags
Six Flags
★4.4
OK State Parks Official Guide
OK State Parks Official Guide
★4.3
Yellowstone National Park Tour
Yellowstone National Park Tour
★4.1
Discovery Cove
Discovery Cove
★4.2