iPhone Screenshots


Updated August 2020. Covers all shallow-water reef fish commonly seen by snorkelers (and some rare ones too). Flip through screens like pages of a book, or find a fish quickly by color or shape (the only fish app with these features). Up to 5 photos per fish -- showing juveniles, males, females, color variations. Each fish has a professional quality video also.

- For snorkelers and beginning scuba divers.
- 205 species** / 553 photos!
- Identify fish by color, shape, family group, scientific name, Hawaiian name, English name.
- Multiple photos of most fish.
- Videos of all fish (requires internet).
- Logbook: save fish, add notes, share Logbook (text only).
- Works great on iPads too.

** Only half of Hawaii's 400+ shore fish live at snorkeling depths. For easier ID, faster download and smaller footprint, this app omits deeper-dwelling fish. For a more complete set of fish, see my app Scuba Fish Hawaii.

Created by John Hoover, author of Hawaii's best-selling marine life ID books: The Ultimate Guide to Hawaiian Reef Fishes, and: Hawaii's Sea Creatures, a Guide to Hawaii's Marine Invertebrates. Check them out on Amazon.

What’s New

Version 2.3

Fixed bug in logbook feature. Updated some scientific names.

Ratings and Reviews

4.6 out of 5
8 Ratings

8 Ratings

Snorkelgal ,

Must Have! 🐠

A great go to app for every snorkeler! Very easy to maneuver. Great pics and very informative!

Developer Response ,

Thanks Snorkelgal! Please let me know if I can improve the app in any way. :)

alisonboden ,

Great App from an Expert

I have John Hoover’s books and I use the app most because of the convenience for travel and multiple photos/videos.

A few things that would make it a 5-star app: ability to sync sightings between devices and ability to make multiple sightings (you can add notes, but it’d be better if you could enter date and place in a form as well).

Developer Response ,

Thanks for the suggestions. I agree it would be great to be able to sync the logbook with other devices. Unfortunately the developer says it would be time-consuming and expensive to implement—not cost-effective for a little app like this.

spamman808 ,

Good app

Very informative


John P Hoover
306.3 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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