Best Marine Fish Guide Apps

244+ iOS apps curated and reviewed

4.2 avg rating

18 free apps

Updated October 2026

If you already know Marine Fish Guide, this is the deeper bench. 244+ marine fish guide apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of October 2026.

Compare top Marine Fish Guide Apps (October 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	Marine Fish Guide	$9.99	—	No	No	Sep 2026
2	Encyclopedia of Fish	Free	3.4★ (11)	No	Yes	Oct 2026
3	SeaLife: Marine Identifier	Free	4.0★ (2)	No	No	Sep 2026
4	Fish Planet	Free	3.7★ (141)	Yes	Yes	Oct 2026
5	Fishbrain - Fishing App	Free	4.7★ (75K)	Yes	Yes	Oct 2026
6	Fish edu	Free	—	No	No	May 2026
7	All Blue - The Field Guide	Free	—	No	No	Jun 2026
8	Aquarium Guide Fish Identifier	Free	4.2★ (14K)	No	Yes	Oct 2026

Top Picks for Marine Fish Guide

#1

Marine Fish Guide by mydigitalearth.com

for Southern Africa

Editor's Choice

0.0(0 ratings)

$9.99

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This guide helps South African marine anglers identify fish species. It provides detailed information, regulations, and tools like a length/weight calculator for 249 common catches.

#2

Encyclopedia of Fish by Good Spider, LLC

Species, habitats, ocean life

Strong Contender

3.4(11 ratings)

FreeIn-App Purchases

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Discover a vast collection of fish species with detailed articles and stunning HD photos. This app offers an engaging and easy-to-understand learning experience for all ages, with offline access and a badge system to encourage exploration.

#3

SeaLife: Marine Identifier by Louis THOMAS

Fish, plants & wildlife

Worth Considering

4.0(2 ratings)

Free

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Discover over 1,000 marine species from various oceans with detailed profiles. Search and filter species by name, color, shape, or habitat. Learn about their behavior, morphology, and natural environment.

More Marine Fish Guide apps to explore

Species, Lures & Maps

A comprehensive fish encyclopedia and fishing guide in 50 languages. Discover detailed information on 800 fish species, including their habitats, feeding habits, and optimal fishing conditions. Includes helpful tools like a fisherman's calendar and knot guides.

800 fish species encyclopediaMulti-language support (50 languages)Detailed fish profiles

free with in-app purchases

Fishbrain - Fishing App

Fishbrain - Fishing App

Fishbrain - Fishing App

Fish Spots, Maps & Forecast

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

free with in-app purchases

Ultimate fish explorer.

All Blue - The Field Guide

All Blue - The Field Guide

All Blue - The Field Guide

Fish ID & Marine Field Guide

Aquarium Guide Fish Identifier

Aquarium Guide Fish Identifier

Aquarium Guide Fish Identifier

Tank Manager, Planner & Guide

This app helps aquarium owners plan their tanks and avoid common mistakes. It checks fish compatibility and tank stocking levels, offering information on over 1000 fish species. You can save and share your aquarium setups.

Fish compatibility checkerTank overcrowding alerts1000+ fish species database

free with in-app purchases

Tetiaroa Fish Guide

Tetiaroa Fish Guide

Tetiaroa Fish Guide

by Tetiaroa Society

Identify common shallow-water reef fish in the Tetiaroa Atoll lagoon with this guide designed for snorkelers. Browse species like a book or search by color and shape, viewing up to five photos per fish. Save identified fish with notes and share your discoveries.

Identify 134 fish speciesSearch by color, shape, or nameMultiple photos per fish

by Jonathan Brown

Quickly identify seafood sustainability, health benefits, and invasive status. Access a comprehensive glossary and detailed information on fish populations and socio-economic factors.

Seafood sustainability lookupHealth benefits informationInvasive species identification

Fishes: East Pacific

Fishes: East Pacific

Fishes: East Pacific

by Smithsonian Institution

Identify tropical Eastern Pacific shore fish with this comprehensive guide. Features over 1,300 species with detailed descriptions, images, and range maps. Works offline and includes search and note-taking tools.

1,358 species coverageOver 5,000 imagesEnglish and Spanish interfaces

West Coast Fish ID

West Coast Fish ID

West Coast Fish ID

West Coast Fish ID guide

This app serves as a digital encyclopedia for identifying common fish species found along the North American West Coast. It uses high-quality images, illustrations, and key characteristics to help anglers quickly identify their catches and differentiate between similar species.

Digital fish encyclopediaHigh-quality images and illustrationsKey species characteristics

by Christina Bischofberger

This comprehensive guide identifies edible aquatic organisms, offering detailed information on species found in oceans, seas, and freshwater. It provides names in multiple languages, illustrations, and links to Wikipedia for further learning. Users can also add personal notes and photos.

Edible aquatic organism identificationMultilingual species namesIllustrations for each species

🍔 Food & Drink

SiriusXM Fish Mapping

This app provides detailed fishing recommendations and environmental data to help anglers find the best spots for bait and game fish. It displays information like plankton strength, sea surface temperature, and ocean currents to optimize fishing trips.

Fishing RecommendationsWeed LinesPlankton Front Strength

🗺️ Navigation

FishScan: AI Fish Identifier

FishScan: AI Fish Identifier

FishScan: AI Fish Identifier

Fish Identifier & AI Scanner

📷 Photo & Video

Tropical Reefs Species Guide

Tropical Reefs Species Guide

Tropical Reefs Species Guide

Find names of marine life

Identify marine life encountered while scuba diving or snorkeling. This app provides a comprehensive guide to fish, invertebrates, and corals found in tropical reef ecosystems.

Identify fishIdentify invertebratesIdentify corals

Deep Blue Divers Fish Guide

Deep Blue Divers Fish Guide

Deep Blue Divers Fish Guide

Six Senses Resort, Laamu

Identify marine life encountered while scuba diving or snorkeling at Six Senses Resort, Laamu. Browse fish species by flipping through pages or search by color and shape. Log your sightings with notes and photos.

Fish identification by color, shape, family, and nameDetailed fish profiles with multiple photosLogbook to save sightings and add notes

Fish and Fishing - KLEV

Fish and Fishing - KLEV

Fish and Fishing - KLEV

Good bite and catch

This app serves as a comprehensive field guide, atlas, and encyclopedia for fish and fishing. It offers a 3-day bite forecast, an AI-powered assistant for angling advice, and an AI fish identifier. Users can also access an educational resource covering fish anatomy, physiology, and ecology.

3-Day Angling OutlookAI-Powered Angler's HubAI Fish Identifier

free with in-app purchases

Conner Martinis

Access expert fishing knowledge with curated spots, bathymetric maps, and live conditions. An AI guide helps plan trips, log catches, and track routes, even offline. Ideal for anglers seeking to improve their catch rates.

Curated fishing spots with rigs and depthsBathymetric depth contour mapsLive weather and tide conditions

🗺️ Navigation

free with in-app purchases

Solomon Islands Fish ID

Solomon Islands Fish ID

Solomon Islands Fish ID

Guide to 870 species

FAQ about Marine Fish Guide

Are there free marine fish guide apps for iPhone?

Yes — 18 of the top marine fish guide apps we rank are free to download, including Encyclopedia of Fish and SeaLife: Marine Identifier.

Does Marine Fish Guide have ads or in-app purchases?

Marine Fish Guide has no ads and has no in-app purchases, according to its App Store listing as of October 2026.

How many marine fish guide apps are on the App Store?

We track 244+ marine fish guide apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.