# DiveDex: Fish & Reef ID — Marine & freshwater species ID

> Marine & freshwater species ID (iPhone/iPad app by donarun DAS.)

- Source: https://appshunter.io/ios/app/divedex-fish-and-reef-id/id6783183985 (this page in markdown: same URL + `.md`)
- Developer: [donarun DAS](https://appshunter.io/developer/6783183987)
- Category: Reference, Education
- Price: Free
- Age rating: 4+
- Requires: iOS 16.0 · 89 MB
- Languages: American English
- Released: 2026-07-13
- Data updated: 2026-09-03
- User reviews in markdown: https://appshunter.io/ios/app/divedex-fish-and-reef-id/id6783183985/reviews.md

## What is DiveDex?

**Name what you see underwater — instantly, and completely offline.**

DiveDex turns your phone into a live marine-life field guide. Point your camera at a
fish, coral, nudibranch or crab and it identifies the species in real time, right on the
device. No signal, no account, no uploads — perfect for the boat, the reef, or a remote
freshwater lake where there's no bar of reception.

Built by a diver, for divers.

**IDENTIFY ANYTHING AQUATIC**
• Real-time identification from your live camera — just center the creature in the frame.
• Powered by the open BioCLIP model running 100% on-device.
• Thousands of species across the tree of life: reef and pelagic fish, freshwater fish,
  corals, nudibranchs, crustaceans, cephalopods, echinoderms and more.
• Confidence you can trust — DiveDex captures the clearest, most-confident moment so the
  ID you save is the one you actually saw.

**WORKS 100% OFFLINE**
• Everything runs on your phone. Your photos and your location never leave the device.
• The species model and reef catalogue download once on first launch; after that you're
  fully offline.
• Add more with free downloadable packs — sharks & rays, nudibranchs, corals, freshwater
  and more — only what you want.

**LOG EVERY DIVE**
• Auto-record a dive and see every species you spotted, organised by dive.
• An offline gallery of your captures you can browse and revisit any time.

**BEAUTIFUL, SHAREABLE ID CARDS**
• Every shot becomes a polished 4:5 card — species name, place, and date — ready to post.
• Photos are geotagged with your surface location and stamped with a reverse-geocoded place.

**CONTRIBUTE TO CITIZEN SCIENCE**
• Save a clean, geotagged original ready to submit to iNaturalist.
• Cross-check any ID against iNaturalist records near your dive site — a quick sanity check
  on whether a species is really found where you are.
• Your confirmed sightings help build open marine-biodiversity data.

**PRIVATE BY DESIGN**
• No account. No ads. No tracking. No analytics.
• Identification happens entirely on-device; nothing about your dives is uploaded unless
  you choose to share a photo.

DiveDex is a naturalist's tool for curiosity and record-keeping — not a substitute for
professional judgement, and never a dive-safety or navigation instrument.


## Version history (last 3 releases)

### 3.1.0 — 2026-09-01

A simpler camera.

• Freeze/live mode is gone. The view is always live, so there is one less thing to think about underwater.
• Tap-to-focus responds on the first tap instead of waiting on a double-tap.
• Less battery and heat: identification pauses while you are reading a sheet.
• About now links donarundas.com.

### 3.0.0 — 2026-07-14

DiveDex is here — a ground-up production release.

• A fresh name and look, built for divers.
• Live, on-device identification across marine AND freshwater species — fully offline.
• Offline captures gallery: browse and revisit every shot, share to iNaturalist.
• Cross-check any ID against iNaturalist records near your dive site.
• Confirmed-value capture so the saved ID matches the confident moment you saw.
• Beautiful shareable ID cards with place, date and geotag.
• Pin your dive location so every shot is tagged with your entry point.
• Free downloadable species packs — add only what you need.

### 2.0 — 2026-07-14

No release notes.

## More apps by donarun DAS

- [Kiss Sidewinder Companion](https://appshunter.io/ios/app/kiss-sidewinder-companion/id6791519919)
- [Deco Room: Dive Theory](https://appshunter.io/ios/app/deco-room-dive-theory/id6797449565)
- [Triton mCCR Companion](https://appshunter.io/ios/app/triton-mccr-companion/id6801860379)

All apps by donarun DAS: https://appshunter.io/developer/6783183987

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*