# nudi.io - nudibranch id — Your nudibranch companion app

> Mobile app for identifying, cataloging, and sharing nudibranch encounters. (iPhone/iPad app by Matthew Botha.)

- Source: https://appshunter.io/ios/app/nudiio-nudibranch-id/id6450905084 (this page in markdown: same URL + `.md`)
- Developer: [Matthew Botha](https://appshunter.io/developer/1695615247)
- Category: Reference, Photo & Video
- Price: Free with in-app purchases
- Rating: 5.00/5 from 5 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 85 MB
- Languages: American English
- Released: 2024-04-06
- Data updated: 2026-08-05
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/nudiio-nudibranch-id/id6450905084/reviews.md

## What is nudi.io?

Dive into the mesmerising world of nudibranchs (nudis) with nudi.io, your go-to mobile app for identifying, cataloging, and sharing your nudibranch encounters.

Whether you're an avid marine enthusiast, a dedicated diver, or a casual beachcomber, nudi.io is designed to enhance your underwater adventures and deepen your understanding of these colourful sea slugs.

Join us as we bring the underwater slug world to the palm of your hand!

Privacy Policy: https://nudi.io/privacy
Terms and conditions: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Nudibranch identification
- Cataloging encounters
- Sharing discoveries
- Marine enthusiast tool
- Underwater adventure enhancement

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| nudi.io Premium - Monthly | $0.99 | per month |
| nudi.io Premium - Yearly | $9.99 | per year |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/nudiio-nudibranch-id/id6450905084/reviews.md

### 3/5 — Nice app

*2024-05-21*

Great photos and comprehensive list. However perhaps the developer can add a field in sightings log for approx location. Doesn’t have to be exact but at least country and region would be helpful. This app has good potential. Look forward to getting to know it better. Appreciate all the work gone into this. 
Also in search is there opportunity to search it also by common names? Yes I understand Latin name is essential to pin point exact species however common names can be a good starting point to include, while keeping the main heading for the species in Latin.

**Developer response:** Hi ITM2003,

Thanks for taking the time to leave a review!

We appreciate the honest feedback and will take a look at the common names request.

We are busy with a country location map, as regional is a much more intricate implementation, so likely we will release the country map until we can drill down into details on regions.

Enjoy the app!

## Frequently asked questions about nudi.io

### What is nudi.io?

nudi.io is a mobile application designed to help users identify, catalog, and share their encounters with nudibranchs, also known as sea slugs. It aims to enhance underwater exploration and knowledge of these marine creatures.

### Is nudi.io free to use?

Yes, nudi.io is free to download and use. However, it does contain advertisements and offers in-app purchases for premium features.

### What are the subscription options for nudi.io Premium?

nudi.io offers two subscription plans: a monthly plan for $0.99 and a yearly plan for $9.99, providing access to premium features.

### What devices does nudi.io support?

nudi.io is available on iPhone, iPad, and iPod, making it accessible to a wide range of Apple users.

### What is the age rating for nudi.io?

nudi.io has an age rating of 4+, making it suitable for young users and families interested in marine life.

### How often is nudi.io updated?

The latest version of nudi.io is 2.15.0, and it was last updated on May 12, 2026. This indicates a commitment to regular updates and improvements.

### Does nudi.io have ads?

Yes, nudi.io contains advertisements. These ads are part of the free experience offered by the app.

### What is the user sentiment for nudi.io?

Based on the available data, nudi.io has a perfect rating of 5.0 stars from 4 ratings, suggesting a very positive user experience among its current users.

## Version history (last 5 releases)

### 2.22.0 — 2026-08-01

Added alphabetical scroll helper
Fixes for featured Genus and Photographers
General Bug fixes

### 2.15.0 — 2026-05-12

Update caching refresh to invalidate genera and families

### 2.14.0 — 2026-05-07

Resolved bug where list species wouldn't load correctly and search failed
Fixed caching of new species
Added in app notifications panel
Improved species image upload process

### 2.5.1 — 2026-03-20

Added Sharing and deep linking features
Cache enhancements
General bug fixes

### 2.0.0 — 2026-02-10

Enhanced UI
General Bug Fixes
premium features to remove ads and upload unlimited images

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## Related topics

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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 2026-08-05.*