Best Depth Finder Free Apps & Games

248+ iOS apps & games curated and reviewed

3.8 avg rating
20 free apps & games
Updated August 2026

Every iPhone needs a few good depth finder free apps and games. We benchmark 248+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Depth Finder Free Apps & Games (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1How Deep?How Deep?FreeNoNoJun 2026
2Fish Deeper - Fishing AppFish Deeper - Fishing AppFree4.5★ (652)YesYesAug 2026
3Navionics® BoatingNavionics® BoatingFree2.9★ (2.3K)NoYesAug 2026
4Aqua Map BoatingAqua Map BoatingFree4.7★ (14K)NoYesAug 2026
5Fishing Points: Map & ForecastFishing Points: Map & ForecastFree4.7★ (31K)YesYesAug 2026
6SonarPhone by VexilarSonarPhone by VexilarFree2.9★ (35)NoNoMay 2026
7Freedive FinderFreedive FinderFreeNoNoJun 2026
8SensorStream, powered by ROS 2SensorStream, powered by ROS 2Free3.0★ (1)NoNoAug 2026

Top Picks for Depth Finder Free

How Deep?#1

How Deep? by Evergreen Labs

Tap to show water depth at sea
Editor's Choice
✈️ 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.

Fish Deeper - Fishing App#2

Fish Deeper - Fishing App by Deeper UAB

Lake Depth Maps to Catch More
Strong Contender
⚽ Sports
4.5😐(652 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
Navionics® Boating#3

Navionics® Boating by Garmin

Nautical and fishing charts
Worth Considering
🗺️ 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

More Depth Finder Free apps to explore

4
Aqua Map Boating
Aqua Map Boating
Aqua Map Boating
Marine navigation and fishing
Free

This app provides official, weekly updated nautical charts for marine navigation. It allows for offline map downloads, GPS track recording, and integration with onboard instruments. Enhance your boating safety and experience with advanced features like weather forecasts and AIS collision detection.

Official NOAA nautical chartsOffline map downloadsGPS track recording
🗺️ Navigation
(14K)
free with in-app purchases
5
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
6
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
7
Freedive Finder
Freedive Finder
Freedive Finder
by Christopher Linnett
Free
⚽ Sports
(0)
8
SensorStream, powered by ROS 2
SensorStream, powered by ROS 2
SensorStream, powered by ROS 2
Stream data from iPhone to ROS
Free

This app transforms your iPhone into a powerful sensor platform, streaming LiDAR depth, RGB camera, IMU, and GPS data to your computer. It's designed for robotics development and research, offering both Wi-Fi and USB connection options for seamless integration with ROS 2.

LiDAR depth streamingRGB camera feedIMU data (accelerometer, gyroscope)
🛠️ Developer Tools
(1)
free
9
G3+MAP
G3+MAP
G3+MAP
G3 Map
Free
🔧 Utilities
(0)
10
Find It - 3D Hidden Object
Find It - 3D Hidden Object
Find It - 3D Hidden Object
by DaeWon Kim
Free
🎮 Games
(0)
11
Eye Spy App
Eye Spy App
Eye Spy App
Find Anything with AR
Free
🔧 Utilities
(0)
12
DetectMapper: Finds Log
DetectMapper: Finds Log
DetectMapper: Finds Log
Metal detecting tracking log
Free
🔧 Utilities
(0)
13
Vizzbud
Vizzbud
Vizzbud
Real-time dive site conditions
Free
⚽ Sports
(0)
14
krakentools – TEC/REC Tools
krakentools – TEC/REC Tools
krakentools – TEC/REC Tools
Deco Planer, OC, CCR, 24 Tools
Free

This comprehensive dive toolbox offers planning and safety features for recreational, Nitrox, TEC, and CCR divers. It includes a digital logbook with Bluetooth connectivity for various dive computers, extensive import/export options, and tools for underwater media editing.

Dive planner for various dive typesDecompression planner with Bühlmann ZH-L16CGas planning and analysis tools
⚽ Sports
(0)
free
15
Ocean Spotter
Ocean Spotter
Ocean Spotter
Citizen Science fürs Meer
Free
✈️ Travel
(0)
16
Deepy Dive
Deepy Dive
Deepy Dive
Dive Deep. Survive Longer
Free
🎮 Games
(0)
17
The Detectory
The Detectory
The Detectory
for Detectorists & Clubs
Free
📊 Productivity
(0)
18
Torgide
Torgide
Torgide
by BEN SUMMERS
Free
✈️ Travel
(0)
19
Goldet Trace Log
Goldet Trace Log
Goldet Trace Log
by Reginald Crawford
Free
🔧 Utilities
(0)
20
Streamburg
Streamburg
Streamburg
by Streamburg, LLC.
Free
🎬 Entertainment
(0)

FAQ about Depth Finder Free

Does How Deep? have ads or in-app purchases?
How Deep? has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 248+ depth finder free apps & games on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
How Deep? is used to display the sea depth or land altitudes by simply tapping on the screen. It's designed for activities like cruise vacations and hiking trips.
Yes, How Deep? can optionally capture your travel trails in the background. This feature allows you to see your route as breadcrumbs on your map.