Bird ID Hawaii icon
Deep Blue Divers Fish Guide icon
Easy Fish ID Caribbean icon
+10

John P. Hoover

For scuba divers, snorkelers, and birdwatchers, specifically those visiting or residing in Hawaii, the Caribbean, and the South Pacific.

13apps3.6(87)TravelReference

Snapshot

Who is John P. Hoover?

Providing specialized marine and wildlife identification guides for divers, snorkelers, and nature enthusiasts in tropical regions.

Target audience

Scuba diversSnorkelersBirdwatchers

Active nemesis

Andrew Martinez

Other rivals

Portfolio

Free 1
13
apps
Travel10
Reference3

Last updated

Snorkel Fish Hawaii for iPhone

v3.7.3

10mo ago

Active

Publisher DNA

What defines John P. Hoover?

Publisher DNA

Primary focus

Marine and wildlife identification guides

Scale

indie

Target audience

Scuba divers, snorkelers, and birdwatchers, specifically those visiting or residing in Hawaii, the Caribbean, and the South Pacific.

Origin

Developed by expert author John P. Hoover to provide educational tools for marine life identification.

Signature Patterns

  • •Premium 'paid' monetization model across all primary reference titles
  • •Consistent inclusion of an 'Identification Engine' and personal 'Logbook' features
  • •Heavy reliance on offline-capable multimedia libraries including photos, video, and audio
  • •Geographic focus on Hawaii and tropical island ecosystems
Active

Portfolio momentum

The publisher has maintained high momentum with 13 releases across the portfolio in the last 6 months, with the most recent update occurring 22 days ago.

Last release 22d agoActive apps 6Abandoned 3

Company profile

low confidence
Employees
1-10

Portfolio

What does John P. Hoover ship?

Apps

13 apps analysed

Multi-photo gallery provides a defensible depth of data

  • Informative content helps dive instructors and snorkelers identify marine life during underwater excursions

Single-market publisher, every app ships only to United States.

Based on 6 of 13 apps with localized market data, more coverage rolling in as scans complete · last scanned .

Americas (1)

  • United States6 / 6

Core markets (6/6 apps)

United States

User Sentiment

How do users feel about their apps?

1

Positive apps

0

Neutral / mixed

0

Negative apps

90/100

Avg sentiment score

Rivals

Who does John P. Hoover compete with?

The rivals identified

Nemeses(2)

Andrew Martinez

known forMarine Life - North Atlantic

1 app4.7Travel

Both apps target the same demographic of divers and snorkelers, competing directly for utility as a portable marine identification reference.

Harald Feiste

known forReef Guide

1 app0.0Travel

Both apps target scuba divers and snorkelers requiring offline identification for reef life, creating direct competition for the same user base in remote marine environments.

Contenders(10)

De Molenaar B.V.

known forBonaire Fish ID

1 app5.0Travel

Both apps target Caribbean snorkelers and divers with marine life identification tools, creating direct competition for users seeking reef reference guides.

Eric Hamiter

known forScuba Dive Signals

1 app5.0Travel

Both apps target the recreational scuba diving and snorkeling market, competing for the same user attention during pre-dive preparation and training.

Florent Charpin

known forTropical Reefs Species Guide

1 app5.0Travel

Both apps target snorkelers and scuba divers for marine life identification, creating direct competition for users seeking field references in the Caribbean.

Gary Cobb

known forMarine Fish Maldives

1 app0.0Travel

Both applications target snorkelers and divers requiring offline identification tools for marine life. They share a core utility of providing searchable, visual databases for species recognition in specific geographic regions.

Iryna Khlopunova

known forMaldivian Fish Guide

1 app0.0Travel

Both applications target the same niche of snorkelers and divers with an identical $9.99 price point, directly competing for users seeking marine life identification tools.

Linh Phan Nhat Khanh

known forTide Pool ID: Field Guide

1 app0.0Travel

Both apps serve the marine life identification market by combining field guides with personal trip logging, targeting recreational coastal explorers.

Morten Kaltoft

known forSubbuddy - The Diving Logbook

1 app5.0Travel

Both apps target the scuba diving and snorkeling market, competing for the user's attention during and after underwater excursions.

Stefano Zanella

known forInto the Blue: Scuba Dive Log

1 app0.0Travel

Both apps target the recreational scuba and snorkeling market, competing for the user's post-dive attention through logging and marine life identification features.

Tetiaroa Society

known forTetiaroa Fish Guide

1 app5.0Travel

Both apps serve snorkelers and divers with marine life identification databases and personal logbooks, creating direct competition for users seeking field reference tools.

茂全 王

known forDivenote: Marine ID&Dive Sites

1 app4.0Travel

Both apps target recreational divers and snorkelers with marine life identification and logging features, creating direct competition for user attention in the dive documentation category.

Same space(21)

Auckland Museum

known forNew Zealand Marine Life

1 app5.0Travel

New Zealand Marine Life provides a specialized, bilingual reference archive, serving as a non-commercial alternative to generalist identification apps.

Curacao Tourist Board

known forCuraçao Dive Map

1 app0.0Travel

Curaçao Dive Map serves as an official regional utility for divers, focusing on site discovery rather than the species identification of Easy Fish ID Caribbean.

Dinh Dong Nguyen

known forFish Identifier - Fish Scanner

1 app3.9Travel

Fish Identifier - Fish Scanner targets students and hobbyists with AI-based recognition, though it lacks the manual curation found in Easy Fish ID Caribbean.

eTips

known forCaribbean Travel Guide & Maps

1 app5.0Travel

Caribbean Travel Guide & Maps provides regional navigation support, serving as a companion utility for travelers visiting the same geographic area.

Fish Verify-Identifier, Finder

known forFish Verify-Identifier, Finder

1 app4.4Travel

Fish Verify provides offline identification capabilities, serving as a technical alternative for users in remote environments without internet access.

Frazao Costa

known forSnorkeling

1 app0.0Travel

Snorkeling provides a location-based discovery tool for underwater explorers, complementing the species identification focus of Easy Fish ID Caribbean.

Galapagos Conservancy

known forGalápagos Marine Life

1 app5.0Travel

Galápagos Marine Life serves as an offline-first reference tool, providing a specialized, non-profit alternative for field-based identification.

Huong Vu Lan

known forFish Identifier - Fish ID

1 app3.6Travel

Fish Identifier - Fish ID uses AI to identify a wide range of species, serving as a broader, automated alternative to the curated Caribbean guide.

intence media

known forFish Finder - Identifier Tool

1 app0.0Travel

Fish Finder - Identifier Tool provides automated identification for anglers, serving as a digital alternative to the manual guide of Easy Fish ID Caribbean.

Jennismary Nadar

known forFish Identifier & Finder

1 app4.5Travel

Fish Identifier & Finder targets fishing enthusiasts with AI-based identification, though it currently faces user satisfaction challenges regarding accuracy.

Mykyta Derevianko

known forFish Identifier & Scanner App

1 app4.4Travel

This app provides a free, gate-less alternative for the same target audience of divers and hobbyists as Easy Fish ID Caribbean.

Nam Nguyen Sy

known forFish Identification by Picture

1 app4.0Travel

Fish Identification by Picture targets anglers and hobbyists with AI recognition, though it lacks the manual, curated focus of Easy Fish ID Caribbean.

Next Vision

known forPicture Fish - Fish Identifier

1 app4.4Travel

Picture Fish targets the broader aquarium hobbyist market with AI recognition, whereas Easy Fish ID Caribbean focuses on a curated, manual reference for snorkelers.

Orkhan Alizada

known forFish Identifier • Fisherman

1 app0.0Travel

Fish Identifier • Fisherman targets anglers with AI-based identification, though it requires internet connectivity unlike the offline-capable apps in this space.

Patrick Martone

known forFish Sorter

1 app0.0Travel

Fish Sorter shares the field guide format but targets a different geographic region, British Columbia, using a question-based interface instead of the dual-mode navigation found in North Sulawesi Fish ID.

Piscaro

known forFish Identifier - Fish101

1 app5.0Travel

Fish101 offers a zero-cost, ad-free experience that competes for the same casual identification audience as Easy Fish ID Caribbean.

Ramkumar Vellaisamy

known forFish Verify: Fish Identifier

1 app4.9Travel

Fish Verify serves the same identification purpose but uses AI photo analysis to broaden its utility beyond the specific regional focus of North Sulawesi Fish ID.

Smolworks

known forCatchr: Fish Identifier

1 app4.7Travel

Catchr serves the angling community with social features and leaderboards, contrasting with the personal logbook focus of Easy Fish ID Caribbean.

TAIKI HIRATA

known forDiving Log - Scuba Logbook

1 app4.0Travel

Diving Log focuses on scuba activity tracking and logbook management, complementing the identification features of Easy Fish ID Caribbean.

Tayson Nguyen

known forAquarium Guide Fish Identifier

1 app4.2Travel

My Aquarium Guide provides tank compatibility and stocking tools for hobbyists, acting as a planning utility rather than a field identification guide.

Wasatch Technology Incorporated

known forCayman Snorkel

1 app0.0Travel

Cayman Snorkel provides region-specific offline navigation, serving as a specialized travel companion for snorkelers in the Cayman Islands.

New entrants(1)

Sevenster Growth BV

known forFin's Fish Guide

1 app0.0Travel

Fin's Fish Guide provides a massive global database for various water activities, offering a more extensive, though less region-specific, alternative.

The Analyst's Read

The bottom line on John P. Hoover

Bottom line

Hoover is a highly specialized indie developer with a strong reputation for quality in the marine reference niche. His disciplined focus on paid, utility-first apps for a high-intent hobbyist audience has resulted in an exceptionally high weighted rating of 4.83.

Frequently asked questions

How many apps does John P. Hoover publish?
John P. Hoover has 13 apps tracked by Marlvel, primarily in the Travel category.
What kind of apps does John P. Hoover make?
John P. Hoover's portfolio is concentrated in Travel and Reference, with an average rating of 3.6/5 across rated apps.
What is John P. Hoover's top app?
By review volume across the portfolio, Snorkel Fish Hawaii for iPhone is John P. Hoover's best-known app tracked by Marlvel.
In how many countries are John P. Hoover's apps available?
Marlvel has tracked John P. Hoover's apps across 1 country.

What fed this analysis

Apps analyzed:
9
With full intel:
0
With overview:
9
Website scraped:
yes
Social presence:
no

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by John P. Hoover, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “John P. Hoover intelligence.” Updated 2026-04-24. https://marlvel.ai/publishers/john-p-hoover

See methodologyContact support

Data licensed under CC-BY-NC 4.0