# Slug Finder — Monterey Nudibranchs and Slugs

> Field guide and identification tool for California nudibranchs and sea slugs. (iPhone/iPad app by Philine Marchetta.)

- Source: https://appshunter.io/ios/app/slug-finder/id6746819673 (this page in markdown: same URL + `.md`)
- Developer: [Philine Marchetta](https://appshunter.io/developer/1818680732)
- Category: Education
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.4 · 80 MB
- Languages: American English
- Released: 2025-06-17
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/slug-finder/id6746819673/reviews.md

## What is Slug Finder?

A Field Guide to Nudibranchs and Sea Slugs of California’s Central Coast

Explore the extraordinary diversity of nudibranchs and other sea slugs found in the kelp forests, rocky reefs, and tidepools of Monterey Bay and Carmel. This app is designed for scuba divers, tidepoolers, marine biology enthusiasts, and anyone curious about these striking and ecologically important invertebrates.

Use visual filters—by size, color, and shape—to help identify species based on external traits. Each profile includes scientific and common names, habitat descriptions, diet, size range, and high-resolution images of adult and juvenile forms when available.

Built for field use, the app works fully offline and includes a sightings log with geotagging and note-taking features. Whether you're tracking your observations over time or contributing to local biodiversity monitoring efforts, the app helps you stay organized and informed.

The included “Nudibranch facts” section provides accessible explanations of nudibranch evolution, reproduction, defense mechanisms, and sensory biology—perfect for learners at all levels. You’ll also find quiz modes and matching games to test your ID skills.

Whether you're conducting a survey dive, photographing tidepool fauna, or just fascinated by the beauty and complexity of sea slugs, this app is your portable reference and learning tool for California’s temperate marine ecosystems.

## Key features

- Visual species identification filters
- Detailed nudibranch profiles
- Offline sightings log with geotagging
- Educational nudibranch facts
- Species identification quizzes
- High-resolution images

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/slug-finder/id6746819673/reviews.md

### 5/5 — Most amazing app ever!

*2025-08-27*

I use this app every day, most amazing app ever :)

## Frequently asked questions about Slug Finder

### What is the learning methodology of Slug Finder?

Slug Finder employs a visual identification approach using filters for size and color, alongside detailed profiles and interactive quizzes. This method supports learning through observation, information recall, and skill testing for marine life identification.

### How does Slug Finder track user progress?

Users can track their progress and observations through the built-in sightings log. This feature allows for geotagging and note-taking, helping users organize and monitor their discoveries over time.

### Does Slug Finder offer certifications?

Slug Finder does not offer formal certifications. Its focus is on providing educational content and identification tools for enthusiasts to learn about and document marine invertebrates.

### What are the key educational features of Slug Finder?

Slug Finder includes a dedicated 'Nudibranch facts' section covering evolution, reproduction, and biology, along with quiz modes to test identification skills. These features are designed for learners of all levels.

### How does Slug Finder compare to other identification apps?

Slug Finder specializes in nudibranchs and sea slugs of California's Central Coast, offering detailed, offline functionality and educational content. Its targeted approach provides in-depth information for this specific region and organism group.

### What is the update frequency for Slug Finder?

Slug Finder was last updated on December 27, 2025, with version 1.0.1. This indicates a recent update, suggesting ongoing development and support for the application.

### Is Slug Finder suitable for all ages?

Slug Finder has an age rating of 4+, making it suitable for a wide range of users. Its educational content and interactive features are designed to be accessible and engaging for younger and older learners alike.

### Does Slug Finder have ads?

No, Slug Finder does not contain advertisements. The app is completely ad-free, providing an uninterrupted learning and identification experience for its users.

## Version history (last 2 releases)

### 1.0.1 — 2025-12-27

Some new species were added.

### 1.0 — 2025-06-17

No release notes.

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## More apps by Philine Marchetta

- [DiveLogix](https://appshunter.io/ios/app/divelogix/id6751678712)

All apps by Philine Marchetta: https://appshunter.io/developer/1818680732

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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 2026-06-01.*