Best Garmin Fish Finder Apps

250+ iOS apps curated and reviewed

4.1 avg rating
20 free apps
Updated September 2026

Looking for free garmin fish finder apps? 20 of our 250+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Garmin Fish Finder Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1ActiveCaptain®ActiveCaptain®Free4.0★ (5K)NoYesSep 2026
2STRIKER™ CastSTRIKER™ CastFree4.6★ (176)NoNoAug 2026
3Navionics® BoatingNavionics® BoatingFree2.9★ (2.3K)NoYesSep 2026
4Garmin Drive™Garmin Drive™Free4.6★ (9.1K)NoNoSep 2026
5Devict Fish finderDevict Fish finderFreeNoNoMay 2026
6FishHunter - Fish Finder/SonarFishHunter - Fish Finder/SonarFree3.9★ (767)NoNoAug 2026
7Fishing Spots: Find & Fish AppFishing Spots: Find & Fish AppFree4.7★ (11K)NoYesSep 2026
8WIFI Fish FinderWIFI Fish FinderFree2.8★ (10)NoNoMay 2026

Top Picks for Garmin Fish Finder

ActiveCaptain®#1

ActiveCaptain® by Garmin

Connect to Your GPS Plotter
Editor's Choice
🗺️ Navigation
4.0😐(5K ratings)
FreeIn-App Purchases
#27in Navigation
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This app connects your mobile device to compatible Garmin chartplotters, enabling wireless chart and map transfers, software updates, and route planning. It also provides access to a community of boaters for reviews and information on marinas and points of interest.

What We Love

  • 👍 Easy to use
  • 🚀 Seamless integration with Garmin devices
  • 💡 Useful for planning trips and managing waypoints
  • 🚀 Convenient for updating software and charts
  • 👍 Great app for Garmin users

Room to Improve

  • 🐛 Frequent crashes and connection issues
  • 🔍 Limited chart and mapping functionality compared to competitors
  • 🤔 Difficult to transfer data between devices
  • 🤔 Confusing and not very intuitive user interface
  • 💰 Expensive for the features provided
STRIKER™ Cast#2

STRIKER™ Cast by Garmin

Fishing sonar streaming app
Strong Contender
⚽ Sports
4.6😊(176 ratings)
Free
STRIKER™ Cast screenshot 1
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Enhance your fishing trips by wirelessly connecting your mobile device to a portable sonar unit. Visualize fish and underwater structures in real-time, with options for traditional sonar or ice fishing modes. Create custom maps and mark your favorite fishing spots for easier returns.

What We Love

  • 🎣 Accurate fish and depth detection
  • 💰 Affordable price point
  • 📱 Easy to use app interface
  • 🗺️ Excellent mapping functionality
  • 🔋 Long battery life
  • 📊 Clear sonar display quality
  • 🎯 Reliable for ice fishing
  • 🚀 Quick setup and connection
  • 👍 Portable and compact design
  • 🌊 Works well from kayaks and shore
  • 💯 Great customer service
  • 📈 Effective for catching fish

Room to Improve

  • 🔌 Proprietary charging connector
  • 📵 Requires cell service/internet connection
  • 🐛 Occasional connectivity issues
  • 📱 Small text for depth/temp readouts
  • ⚠️ Device durability concerns
  • 🔄 Frequent app crashes/freezing
  • 📡 Limited connection range
  • ⏱️ Slow performance in moving water
  • 🔋 Drains phone battery quickly
  • 🎨 Outdated 2D sonar technology
Navionics® Boating#3

Navionics® Boating by Garmin

Nautical and fishing charts
Worth Considering
🗺️ Navigation
2.9😞(2.3K ratings)
FreeIn-App Purchases
#5in Navigation
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Access detailed nautical charts and advanced boating features offline on your mobile device. Plan trips with dock-to-dock guidance, check weather and tides, and connect with a community of boaters. Ideal for cruising, fishing, sailing, and diving.

What We Love

  • 🚀 Great navigation app
  • 🗺️ Detailed charts and maps
  • ⚓ Useful for boating and sailing
  • 💰 Good value for money

Room to Improve

  • 🐛 Frequent crashes and bugs
  • 🔒 Login issues and unreliable offline access
  • 💰 Expensive subscription model
  • 🗺️ Inaccurate or outdated map data

More Garmin Fish Finder apps to explore

FAQ about Garmin Fish Finder

What are the best garmin fish finder apps for iPhone?
ActiveCaptain® tops our garmin fish finder apps ranking as of September 2026, with a 4.0-star average from 5K App Store ratings, and it's free to download.
Yes — 20 of the top garmin fish finder apps we rank are free to download, including ActiveCaptain® and STRIKER™ Cast.
ActiveCaptain® has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 250+ garmin fish finder apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
The ActiveCaptain app connects your compatible mobile device to your Garmin chartplotter. It allows you to wirelessly transfer charts, maps, software updates, routes, and waypoints. You can also access a community of boaters for reviews on marinas and points of interest, and even control your chartplotter remotely.
Key features include OneChart for purchasing and transferring new Garmin Navionics+ and Vision+ cartography, Plan a Trip for route planning, User Data Sync for backing up data, the ActiveCaptain Community for POI information, the Helm feature to control your chartplotter, easy software updates, OnDeck system monitoring, and the Garmin Quickdraw Community for HD contour maps.