Fish Deeper Web is an online website that stores your maps and scans: https://maps.fishdeeper.com/
You can use it on any browser, and it doesn't matter whether you use a laptop, PC, tablet or a smartphone.
When using Fish Deeper Web on GPS-enabled devices such as tablets and smartphones, you can determine your location on the map by clicking the GPS icon on the right side of the screen:
ⓘ Performance of Fish Deeper Web is hardware-dependent. So, it may perform better on PC and laptops, as well as newer smartphones and tablets. Fish Deeper Web may have poorer performance on older smartphones and tablets.