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Best Lake Depth Finder Apps

250+ iOS apps curated and reviewed

4.5 avg rating
19 free apps
Updated August 2026

From beginner-friendly picks to power-user tools, our lake depth finder list covers 250+ iPhone apps updated through August 2026. Compare ratings, prices, and screenshots in one place.

Compare top Lake Depth Finder Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1i-Boating: Marine Charts & Gpsi-Boating: Marine Charts & GpsFree4.5★ (15K)NoYesAug 2026
2Navionics® BoatingNavionics® BoatingFree2.9★ (2.3K)NoYesAug 2026
3LakeStatsLakeStatsFree4.9★ (16)NoNoAug 2026
4Fishing Points: Map & ForecastFishing Points: Map & ForecastFree4.7★ (31K)YesYesAug 2026
5Fishbrain - Fishing AppFishbrain - Fishing AppFree4.7★ (71K)YesYesAug 2026
6onX Fish: Midwest Fishing MapsonX Fish: Midwest Fishing MapsFree4.6★ (1.6K)YesYesAug 2026
7Fish Deeper - Fishing AppFish Deeper - Fishing AppFree4.5★ (652)YesYesAug 2026
8Lake ObserverLake ObserverFree—NoNoJul 2026

Top Picks for Lake Depth Finder

i-Boating: Marine Charts & Gps#1

i-Boating: Marine Charts & Gps by Bist LLC

Lake Depth Map,Sailing Plotter
Editor's Choice
🗺️ Navigation
4.5😊(15K ratings)
FreeIn-App Purchases
#87in Navigation
i-Boating: Marine Charts & Gps screenshot 1
i-Boating: Marine Charts & Gps screenshot 2
i-Boating: Marine Charts & Gps screenshot 3
i-Boating: Marine Charts & Gps screenshot 4
i-Boating: Marine Charts & Gps screenshot 5
i-Boating: Marine Charts & Gps screenshot 6

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.

What We Love

  • 🚀 Accurate GPS and navigation
  • 🗺️ Detailed nautical charts
  • 📊 Helpful fishing and structure information
  • 🔍 Useful for finding unexplored fishing spots

Room to Improve

  • 🌐 GPS/location issues, inaccurate positioning
  • 💰 Expensive recurring subscription model
  • 🔁 Difficulty restoring purchased content on new devices
Navionics® Boating#2

Navionics® Boating by Garmin

Nautical and fishing charts
Strong Contender
🗺️ Navigation
2.9😞(2.3K ratings)
FreeIn-App Purchases
#4in Navigation
Navionics® Boating screenshot 1
Navionics® Boating screenshot 2
Navionics® Boating screenshot 3
Navionics® Boating screenshot 4
Navionics® Boating screenshot 5
Navionics® Boating screenshot 6

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
LakeStats#3

LakeStats by LakeStats LLC

Depth Map & Live Water Stats
Worth Considering
✈️ Travel
4.9(16 ratings)
FreeIn-App Purchases
LakeStats screenshot 1
LakeStats screenshot 2
LakeStats screenshot 3
LakeStats screenshot 4
LakeStats screenshot 5

Access real-time water levels, boat ramp status, and historical lake data. Plan your next outing with detailed information on access points and water conditions. Features offline functionality for convenient use.

More Lake Depth Finder apps to explore

4
Fishing Points: Map & Forecast
Fishing Points: Map & Forecast
Fishing Points: Map & Forecast
Find Best Tides Times to Fish
Free

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.

Fishing forecasts (tides, moon, weather, solunar)Detailed fishing maps (satellite, nautical, lake depth)Save and discover fishing spots and routes
⚽ Sports
(31K)
free with in-app purchases
5
Fishbrain - Fishing App
Fishbrain - Fishing App
Fishbrain - Fishing App
Fish Spots, Maps & Forecast
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
(71K)
free with in-app purchases
6
onX Fish: Midwest Fishing Maps
onX Fish: Midwest Fishing Maps
onX Fish: Midwest Fishing Maps
Lake Finder, Weather, Species
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
(1.6K)
free with in-app purchases
7
Fish Deeper - Fishing App
Fish Deeper - Fishing App
Fish Deeper - Fishing App
Lake Depth Maps to Catch More
Free

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.

2D and 3D Depth MapsBottom Hardness MapsWaterbody Hub & Community
⚽ Sports
(652)
free with in-app purchases
8
Lake Observer
Lake Observer
Lake Observer
by Cary Institute of Ecosystem Studies, Inc.
Free
📊 Productivity
(0)
9
Lake Optix
Lake Optix
Lake Optix
See Know Act
Free
💼 Business
(0)
10
Lake Pulse
Lake Pulse
Lake Pulse
by Kevin Sofen
Free

Monitor your lake's health and receive real-time updates and alerts. Contribute to lake management with field notes and images, connecting you to your lake community from anywhere.

Real-time status updatesHealth and safety alertsProject-specific news
📚 Education
(2)
free
11
Sloan's Lake
Sloan's Lake
Sloan's Lake
Welcome to Sloan's Lake!
Free
🎬 Entertainment
(0)
12
Rudyard Lake
Rudyard Lake
Rudyard Lake
by The Rudyard Lake Trust
Free
📚 Education
(0)
13
Wild Guide Lake District
Wild Guide Lake District
Wild Guide Lake District
by Wild Things Publishing Ltd
$2.99
✈️ Travel
(0)
14
Pritchards (Lake Life Rentals)
Pritchards (Lake Life Rentals)
Pritchards (Lake Life Rentals)
by Pritchard Auto Company
Free
✈️ Travel
(0)
15
Alplakes
Alplakes
Alplakes
Lake conditions and forecasts
Free
☀️ Weather
(0)
16
LakeTech.
LakeTech.
LakeTech.
by Dojo Design & Development, LLC
Free
💼 Business
(0)
17
ClearDepth
ClearDepth
ClearDepth
Lake Hazard Maps for Boaters
Free

This app provides real-time hazard information for boaters and lake-goers, showing submerged dangers and shallow spots on interactive maps. It automatically adjusts hazard severity based on current water levels, enhancing safety on the water.

Community-reported hazards on interactive mapsReal-time water level adjustmentsProximity alerts for flagged areas
🗺️ Navigation
(42)
free
18
DAMAO
DAMAO
DAMAO
SONAR
Free
⚽ Sports
(0)
19
Water Snapshot
Water Snapshot
Water Snapshot
Water Levels, Flow & % Full
Free
🔧 Utilities
(0)
20
How Deep?
How Deep?
How Deep?
Tap to show water depth at sea
Free

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.

Tap to show sea depthTap to show land altitudeBackground travel trail capture
✈️ Travel
(0)
free

FAQ about Lake Depth Finder

What are the best lake depth finder apps for iPhone?
i-Boating: Marine Charts & Gps tops our lake depth finder apps ranking as of August 2026, with a 4.5-star average from 15K App Store ratings, and it's free to download.
Yes — 19 of the top lake depth finder apps we rank are free to download, including i-Boating: Marine Charts & Gps and Navionics® Boating.
i-Boating: Marine Charts & Gps has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 250+ lake depth finder apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app provides detailed marine charts and GPS functionality for navigation on waterways. It allows users to plan routes, receive voice-guided navigation, view tide and current predictions, and record their tracks. The app offers extensive map coverage for various regions and inland rivers.
Key features include hardware/GPU accelerated vector charts, long-press object details, customizable units, track recording with real-time overlay, voice prompts for navigation, GPX/KML route import, tide and current predictions, and seamless chart quilting. It also supports NMEA AIS and GPS instrumentation.