Garmin STRIKER Cast is a free lifestyle app developed by Garmin International for iPhone users. It is designed to pair your mobile device with a sonar device, allowing you to locate and display fish on your iPhone or iPad. With the added GPS model, you can even create custom maps with 1' contours.

The app allows you to cast from shore, dock, or watercraft, and reel back in to see exactly where fish are hiding. It streams sonar wirelessly from up to 200 feet away, providing crisp and easy-to-interpret detail of fish and structure. You have the option to choose between traditional 2-D sonar and ice fishing flasher modes, both of which are easy to understand.

Garmin STRIKER Cast also includes automatic setting adjustments for gain, range, and more, making it user-friendly for both beginners and experienced anglers. You can access maps with up to 1' contours from the Garmin Quickdraw Community or create your own. Additionally, you can mark your favorite fishing spots for easy navigation.

Please note that continuous use of GPS can shorten battery life. If you're looking for a portable fishfinder app that seamlessly integrates with your iPhone, give Garmin STRIKER Cast a try.