Kayak fishing combines the tranquility of paddling with the thrill of the catch, but having the right technology on board can make the difference between a slow day and a successful one. Modern apps and the devices that power them turn your kayak into a sophisticated fishing platform, allowing you to locate fish, navigate safely, and manage your gear with unprecedented ease.
From castable sonars that connect directly to your smartphone to dedicated fish finders and essential safety communicators, the right tools will significantly enhance your time on the water. This roundup covers the best apps and their companion devices designed specifically for the unique needs of the kayak angler, helping you find the perfect tech to complement your skills and style.
The Best Kayak Fishing Apps and Gear
- Deeper PRO+ 2 Sonar – Portable Fish Finder
- Deeper Start Fish Finder – Portable and Depth Finder
- Reelsonar Portable Fish Finder Accurate Fish Depth Finder
- LUCKY Kayak Portable Fish Depth Finder Water Handheld
- Hikeen Kayak Phone Holder, 360°Adjustable Phone Holder
- Garmin 010-01550-00 Striker 4 with Transducer
- Garmin inReach Mini 2, Lightweight Satellite Communicator
- Lowrance HOOK2 4X Fishfinder with Bullet Skimmer
- Humminbird HELIX 5 CHIRP GPS G2 Fish Finder
Deeper PRO+ 2 Sonar

The Deeper PRO+ 2 is a professional-grade, castable sonar that turns your smartphone into a powerful fish-finding system. Its key advantage is the triple-beam sonar, offering a wide beam for covering large areas, a mid beam for general use, and a narrow beam for drilling down on specific spots with extreme precision. This makes it ideal for anglers who need detailed information about the water column and structure beneath them.
With an accuracy depth of up to 330 feet and its own dependable Wi-Fi connection for rock-solid performance, you get reliable data without using your mobile data. The target separation is exceptional, allowing you to easily pinpoint target species and even track a tiny lure when vertical jigging, giving you a significant advantage on the water.
Deeper Start Fish Finder

For the recreational kayak angler or someone just starting with fish finders, the Deeper Start is an excellent and user-friendly option. Its lightweight, castable design requires no messy wires or external batteries, making setup incredibly simple. Just pair it with the free Fish Deeper app, cast it out, and you’re ready to scan.
This smart sonar creates its own Wi-Fi network, so it doesn’t consume your phone’s data, and it automatically saves every scan with time and location data. You instantly see useful information like fish location and size, water depth, bottom contour, and vegetation, helping you quickly understand what’s below the surface without a complex setup.
Reelsonar Portable Fish Finder

The Reelsonar fish finder offers a great balance of functionality and value for kayak anglers. It connects to your iOS or Android device via Bluetooth and provides a solid depth range of 135 feet. With a battery life of over 10 hours on a single charge, it’s built to last for long days on the water without needing a power bank.
This device uses sonar signals to reflect visual images of objects, both static and moving, beneath your kayak. It displays depth-tagged fish icons that are color-coded by size and includes a helpful fish alarm to alert you when fish are present below, which is particularly useful when stationary or fishing under docks.
LUCKY Kayak Portable Fish Depth Finder

If you prefer a standalone device that doesn’t rely on your smartphone, the LUCKY Handheld Fish Finder is a practical choice. This compact unit has its own LCD display and is designed to be held in one hand or worn around your neck with the included strap. It detects water depth from 3 feet down to an impressive 328 feet.
Beyond just showing fish location and depth, this sonar provides helpful data about the bottom composition, indicating short and tall weeds, sand, and rocks. The display is visible in both bright sunlight and darkness thanks to its backlight, and it allows you to switch between feet and meters while offering five sensitivity levels for different water clarities.
Hikeen Kayak Phone Holder

When you’re using your phone as a fish finder or GPS, a secure mount is non-negotiable. The Hikeen Kayak Phone Holder provides a solid and versatile solution for keeping your device safe and visible. It offers two mounting options: you can use the T-shaped screw for easy attachment and adjustment on a kayak track, or use the pointed screws for a permanent installation directly on the hull, making it suitable for kayaks with or without rails.
This holder features a 360-degree adjustable long arm, allowing you to position your phone for the perfect viewing angle. With non-slip rubber pads and a side safety lock, your phone remains firmly in place even during bumpy rides, protecting your essential device from water and loss.
Garmin Striker 4 with Transducer

The Garmin Striker 4 is a classic choice for kayak anglers seeking a dedicated, all-in-one fish finder with GPS. Its compact 3.5-inch display is a good fit for the limited space on a kayak. The device features CHIRP sonar technology, which provides a much clearer and more detailed view of what’s below you compared to traditional sonar.
With its Clear Vu scanning sonar, you get near-photographic images of structure, objects, and fish. The integrated GPS allows you to mark waypoints on the built-in map, so you can easily return to productive spots like brush piles or docks. Its simple, keyed interface with dedicated buttons is easy to use, even with wet hands.
Garmin inReach Mini 2

Safety should be a top priority for any kayak angler venturing beyond cell service. The Garmin inReach Mini 2 is a compact and lightweight satellite communicator that keeps you connected globally. With an active subscription, it enables two-way text messaging and features an interactive SOS function that can summon help from a 24/7 search and rescue monitoring center.
Beyond emergency use, you can use it to share your location with family and friends in real-time via a MapShare page and navigate your route with TracBack routing, which guides you back along your path. For fishing in remote locations, this device provides essential peace of mind.
Lowrance HOOK2 4X Fishfinder
The Lowrance HOOK2 4X is designed for simplicity and ease of use, making it a great entry-point into dedicated fish-finding units. It comes with a Bullet Skimmer transducer that provides detailed sonar readings. The key feature is its automated setup; the device is ready to fish right out of the box with auto-tuning sonar.
Its 4-inch SolarMAX display is easy to read in direct sunlight, a common challenge on the water. The interface is straightforward, allowing you to quickly see fish arches, bottom structure, and depth without needing to navigate complex menus, so you can spend less time configuring and more time fishing.
Humminbird HELIX 5 CHIRP GPS G2
For the serious kayak angler who wants high-performance mapping and scanning, the Humminbird HELIX 5 CHIRP GPS G2 is a top-tier unit. It combines a bright 5-inch display with advanced CHIRP sonar for superior target separation and clarity. The built-in GPS and chart-plotting capabilities are a significant advantage for marking honey holes and navigating large bodies of water.
This model often includes features like SwitchFire sonar control and Dual Spectrum CHIRP, allowing you to customize the sonar view to your preference and conditions. Its robust construction is built to handle the marine environment, making it a powerful and reliable tool for anglers who demand the most from their electronics.
What to Look For in the 9 Best Apps for Kayak Fishing
When I’m picking apps for my kayak fishing trips, I think about what will actually help me on the water. My phone’s storage and battery are limited, so I need apps that are efficient and serve a clear purpose. The best ones make me a more effective angler without complicating my day. Here’s what I focus on when choosing.
First, I always check the offline functionality. Cell service is a luxury on most of the lakes and rivers I fish. An app that downloads maps and data for offline use is non-negotiable. I need to be able to see my location, depth charts, and marked spots even when I have zero bars. Without this, the app is practically useless the moment I leave the boat ramp.
Next, I look at the specific features for fishing. A good mapping app is a start, but I want one built for anglers. This means things like detailed bathymetric (depth) maps, water temperature overlays, and the ability to mark waypoints for productive spots. Some apps even have social features where you can see what other anglers are catching, which can be a great way to learn a new body of water.
I also consider the user interface. When I’m on my kayak, my hands are often wet, and I need information fast. A cluttered, complicated app is a pain to use. I prefer clean, simple designs with large buttons that are easy to tap. The best apps present complex data, like tide charts or solunar fishing calendars, in a way that’s quick and easy to understand at a glance.
Finally, I think about the app’s primary goal. I usually end up with a small suite of apps, each with a specialty. One might be my go-to for nautical charts and navigation, another for predicting fish activity, and a third for logging my catch data. Trying to find one app that does everything perfectly is tough, so I mix and match to cover all my bases for a successful kayak fishing trip. Finding the right combination is key to getting the most out of the 9 best apps for kayak fishing: reviews and key features.
FAQ
Are these fishing apps reliable without a cell signal?
This is the most important question. The best fishing apps are designed for this exact situation. They allow you to download high-detail maps for specific regions directly to your phone before you head out. Once downloaded, your phone’s GPS will work independently to show your precise location on those maps, even in airplane mode. I always make a habit of downloading my home lake and any new areas the night before a trip. This saves battery and ensures I have all the data I need.
How much battery life do these apps use?
They can be significant battery hogs, especially with the screen on and GPS actively running. To manage this, I use a waterproof battery pack to keep my phone charged throughout the day. I also adjust my phone’s settings: turning down the screen brightness, closing other apps, and enabling battery saver mode. Some apps themselves have a power-saving display mode, which uses darker colors to reduce battery drain on the screen.
Is it worth paying for a premium subscription?
In my experience, yes, for at least one core app. The free versions are often limited, showing basic maps or locking advanced features like detailed sonar charts, historical data, or advanced weather layers behind a paywall. I view a premium subscription as an investment in my hobby, similar to buying a good lure. The depth and quality of information you get can directly lead to catching more fish and staying safer on the water.
Can I use one app for everything, or do I need several?
You can certainly try, but I’ve found that using a combination of apps works best. One app might have superior maps for my local lake, while another has a more accurate solunar forecast or a better system for logging my catches. I recommend starting with one all-around app that covers mapping and basic features, and then adding specialized apps to fill in the gaps based on your specific needs.
What’s the best way to protect my phone while kayak fishing?
Protecting your phone is critical. I use a fully waterproof, floating case. This protects it from splashes, rain, and the worst-case scenario of it going overboard. I also mount it securely on my kayak using a RAM Mount or a similar sturdy holder. This keeps it hands-free, visible for navigation, and prevents it from bouncing around in the cockpit. A simple dry bag is not enough for active use; you need a case designed for touchscreen access.