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Best Depth Finder Apps

215+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated July 2026

Fish Deeper is the household name in depth finder, but it's far from the only option. We track 215+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Top Picks for Depth Finder

Fish Deeper - Fishing App#1

Fish Deeper - Fishing App by Deeper UAB

Lake Depth Maps to Catch More
Editor's Choice
⚽ Sports
4.5😐(653 ratings)
FreeAdsIn-App Purchases
Fish Deeper - Fishing App screenshot 1
Fish Deeper - Fishing App screenshot 2
Fish Deeper - Fishing App screenshot 3
Fish Deeper - Fishing App screenshot 4
Fish Deeper - Fishing App screenshot 5
Fish Deeper - Fishing App screenshot 6

This app provides detailed lake depth and bottom hardness maps to help anglers locate prime fishing spots. It also offers community features for sharing catches and tips, weather forecasts, and offline map access. Enhance your fishing experience with real-time sonar data when paired with compatible devices.

What We Love

  • 🚀 Easy to use
  • 🔍 Helpful for finding fish
  • 📊 Good mapping and depth features
  • ⚡️ Versatile for different fishing methods

Room to Improve

  • 🔌 Connectivity issues
  • 🗺️ Inaccurate mapping and depth readings
  • 💰 Subscription model and premium features
How Deep?#2

How Deep? by Evergreen Labs

Tap to show water depth at sea
Strong Contender
✈️ Travel
0.0(0 ratings)
Free
How Deep? screenshot 1

This app displays sea depth or land altitudes with a simple tap. It's ideal for travelers on cruises or hiking adventures, and can optionally track your journey.

Fishing Points: Map & Forecast#3

Fishing Points: Map & Forecast by Fishing Points d.o.o.

Find Best Tides Times to Fish
Worth Considering
⚽ Sports
4.7😊(30K ratings)
FreeAdsIn-App Purchases
#63in Sports
Fishing Points: Map & Forecast screenshot 1
Fishing Points: Map & Forecast screenshot 2
Fishing Points: Map & Forecast screenshot 3
Fishing Points: Map & Forecast screenshot 4
Fishing Points: Map & Forecast screenshot 5
Fishing Points: Map & Forecast screenshot 6

This app helps anglers find the best times and locations to fish by providing detailed forecasts for tides, moon phases, weather, and marine conditions. It offers interactive maps to discover and save fishing spots, track routes, and access offline nautical charts, along with a catch logbook and fishing regulations.

What We Love

  • 🚀 Easy to use
  • 🗺️ Helpful mapping features
  • 📊 Detailed fishing data
  • 🔍 Accurate weather and tide information

Room to Improve

  • 🐛 Inaccurate fish activity forecasts
  • 🗺️ Lacking detailed lake/river maps
  • 💰 Premium features too expensive

More Depth Finder apps to explore

4
Navionics® Boating
Navionics® Boating
Navionics® Boating
Nautical and fishing charts
Free

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.

Offline nautical chartsHD bathymetry mapsDock-to-dock route planning
🗺️ Navigation
(2.3K)
free with in-app purchases
5
i-Boating: Marine Charts & Gps
i-Boating: Marine Charts & Gps
i-Boating: Marine Charts & Gps
Lake Maps & Fishing Spots
Free

Navigate waterways with detailed marine charts and GPS. Features include route planning, voice-guided navigation, tide and current predictions, and track recording. Offers extensive map coverage for various regions and inland rivers.

Detailed vector marine chartsRoute planning and editingVoice-guided navigation
🗺️ Navigation
(14K)
free with in-app purchases
6
Savvy Navvy: Boat Navigation
Savvy Navvy: Boat Navigation
Savvy Navvy: Boat Navigation
Marine GPS and Nautical Charts
Free

This app provides comprehensive marine navigation, integrating charts, weather, tides, and GPS tracking. It simplifies route planning and offers real-time safety data to ensure confident and enjoyable time on the water for various boating activities.

Clutter-free nautical chartsSmart route planning with weather and tide integrationReal-time GPS tracking
🗺️ Navigation
(7.4K)
free with in-app purchases
7
SonarPhone by Vexilar
SonarPhone by Vexilar
SonarPhone by Vexilar
by Vexilar
Free

This application transforms your smartphone or tablet into a high-performance sonar system. It connects wirelessly to a dedicated transmitter, offering detailed underwater views and essential fishing data. Explore its features in demo mode or with a compatible transmitter.

Touch screen sonar systemWireless WiFi hotspot transmitterMulti-color color display
⚽ Sports
(35)
free
8
Fishbrain - Fishing App
Fishbrain - Fishing App
Fishbrain - Fishing App
Fish Spots, Maps & Identifier
Free

Discover new fishing locations, access detailed local information, and connect with a large community of anglers. Improve your fishing skills with advanced maps, weather forecasts, and catch tracking tools.

Fishing maps with advanced layersDetailed fishing water informationCatch reports and bait recommendations
⚽ Sports
(67K)
free with in-app purchases
9
FishAngler: Fishing Guide App
FishAngler: Fishing Guide App
FishAngler: Fishing Guide App
Fishing Maps, Forecast & Spots
Free

This app helps anglers discover, plan, and log fishing trips with powerful maps, forecasts, and community features. Identify fish, track your catches, and connect with other anglers to improve your success on the water.

Fishing Maps & SpotsPrivate WaypointsBait & Lure Insights
⚽ Sports
(13K)
free with in-app purchases
10
Wavve Boating: GPS, Map, Chart
Wavve Boating: GPS, Map, Chart
Wavve Boating: GPS, Map, Chart
Navigation, Charts, Tides, Map
Free

Navigate waterways with detailed nautical charts, tide predictions, and weather forecasts. Connect with a community of boaters to share points of interest and track friends on the water. Enjoy simplified GPS navigation tailored to your boat's draft.

Simple GPS navigationCustomizable nautical chartsCommunity points of interest
🗺️ Navigation
(5.4K)
free with in-app purchases
11
onX Fish: Midwest Fishing Maps
onX Fish: Midwest Fishing Maps
onX Fish: Midwest Fishing Maps
Ice Fishing Spots & Weather
Free

Discover new fishing spots with detailed lake data, weather forecasts, and GPS navigation. Plan your next trip with insights on fish species, stocking history, and land ownership. Navigate hands-free and access maps offline.

Lake Finder with species informationDetailed fishing maps and plannerGPS navigation and offline maps
🗺️ Navigation
(1.4K)
free with in-app purchases
12
Great Depths
Great Depths
Great Depths
by Walk About Apps
Free

This app transforms your iOS device into a digital depth finder. It provides comprehensive US coastal and Great Lakes coverage with live tide data and nautical charts. Navigate safely and efficiently with offline chart storage and distance calculation features.

Digital depth readoutsLive tide dataNOAA RNC nautical charts
🗺️ Navigation
(12)
free with in-app purchases
13
Fishing Spots: Find & Fish App
Fishing Spots: Find & Fish App
Fishing Spots: Find & Fish App
Local Fishing Maps & Forecast
Free

Discover local fishing spots with interactive maps, depth charts, and real-time forecasts. Log your catches, analyze your success, and connect with a global community of anglers to improve your fishing game.

Interactive fishing maps with depth chartsReal-time fishing forecasts and weatherCatch logging and analysis
⚽ Sports
(11K)
free with in-app purchases
14
Omnia Fishing: Spots & Maps
Omnia Fishing: Spots & Maps
Omnia Fishing: Spots & Maps
Fishing App: Maps & Reports
Free

Discover fishing spots with detailed lake maps, real-time reports, and tackle recommendations. Plan your next fishing trip with custom waypoints and access a vast tackle warehouse. PRO members get advanced map layers and exclusive perks.

Fishing spot discoveryPRO lake maps with depth and clarity layersReal-time fishing reports
⚽ Sports
(3.6K)
freemium
15
FishTrack - Charts & Forecasts
FishTrack - Charts & Forecasts
FishTrack - Charts & Forecasts
SST, tides, currents, & maps
Free

This app provides saltwater anglers with essential tools to locate fish. It combines cloud-free SST charts, satellite imagery, tides, currents, and marine weather forecasts into a layered interface. Users can mark hot spots, save data for offline use, and identify optimal fishing zones.

Cloud-free Sea Surface Temperature (SST) chartsGlobal satellite imagery (water temp, color, currents)Tides and moon phase data
☀️ Weather
(6K)
free with in-app purchases
16
HawkEye FishPod SONAR
HawkEye FishPod SONAR
HawkEye FishPod SONAR
by NorCross Marine Products, Inc
Free

This smart fish finder app utilizes advanced sonar technology to help anglers locate fish. It offers unmatched versatility and usability, developed with decades of experience in marine electronics.

Smart fish finderAdvanced sonar technologyBoat mount compatible
🗺️ Navigation
(388)
free
17
How Deep Is It?
How Deep Is It?
How Deep Is It?
by Tom Soderling
Free

Explore physics concepts hands-on with this app. It uses your device's accelerometer to demonstrate falling body equations, allowing you to visualize and hear the distance traveled. Experience classic physics principles in an interactive way.

Illustrates falling body equationsUses device accelerometerLarge text distance display
📊 Productivity
(13)
free
18
Depth Estimation
Depth Estimation
Depth Estimation
by Hideaki Uchikoshi
Free
🔧 Utilities
(0)
19
Sea Depth
Sea Depth
Sea Depth
Offshore Bathymetry Charts
Free

Visualize detailed underwater terrain with high-resolution bathymetric charts. Gain deeper insights into seafloor structure, contours, and terrain for offshore activities. Includes optional data overlays and waypoint management for enhanced situational awareness.

High-resolution shaded-relief bathymetryDetailed depth contours with intelligent labelingOptional data overlays (pipelines, bottom composition)
🗺️ Navigation
(1)
free with in-app purchases
20
Fishing Points - Lake Maps
Fishing Points - Lake Maps
Fishing Points - Lake Maps
Marine Navigation/Fishing Spot
Free

This app provides detailed lake depth maps and marine charts with fishing points for various regions. It features an AI that identifies productive fishing spots based on bathymetry, local knowledge, and weather. Offers advanced GPS navigation with voice prompts, route planning, and tide/current predictions.

Fishing AI for spot predictionDetailed lake depth mapsMarine charts with fishing points
⚽ Sports
(2.2K)
free with in-app purchases

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