Lateral Lines is an iPhone application developed by The Portland Fly Shop LLC. This free app falls under the Education & Reference category, offering river-specific In-Depth Hatch Charts, Custom Maps, Knot Guides, Water Levels, Gear Reviews, Tech Tips, Suggested Patterns, and more. It aims to provide a comprehensive toolset for fishing enthusiasts, allowing them to access valuable information and resources for their fishing trips.

With Lateral Lines, users can explore detailed hatch charts, navigate custom maps, learn various knots, stay updated on water levels, read gear reviews, discover tech tips, explore suggested patterns, and much more. This app is designed to be a one-stop solution for anglers looking to enhance their fishing experience with essential knowledge and tools.