# Shellock: Shell Collection — Catalogue your seashells

> Catalogue your seashells (iPhone/iPad app by Michele Martuscelli.)

- Source: https://appshunter.io/ios/app/shellock-shell-collection/id6832277580 (this page in markdown: same URL + `.md`)
- Developer: [Michele Martuscelli](https://appshunter.io/developer/6832277582)
- Category: Reference, Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 14 MB
- Languages: American English
- Released: 2026-11-10
- Data updated: 2026-11-12

## What is Shellock?

Shellock is a catalogue for shell collectors, built with a collector of Cypraeidae who has spent decades on his collection.

EVERY SPECIMEN, PROPERLY RECORDED
• Scientific names checked against WoRMS, the World Register of Marine Species, with author and year
• Family, genus, species, subspecies and forma, shown the way you prefer
• Size, the GEM to F− grading scale, locality, depth, collection method and year
• Up to four photos per lot on Collector, with a swipeable gallery
• Lots with several specimens, and your own lot numbers kept from your old catalogue

FIND ANYTHING IN SECONDS
• Search and filter by family, genus, grade, size, locality and status
• Save the views you use most
• A provenance atlas: see where your shells come from on a globe and on a map

SEE HOW COMPLETE YOUR COLLECTION IS
• A species checklist for each family, built from WoRMS: what you have, and what is still missing
• Coverage rings show the share of each family's living species you hold

BRING YOUR COLLECTION WITH YOU
• Import from Excel or CSV: columns are recognised in English and Italian, grades are normalised, similar dealer names are grouped
• Export everything to Excel or CSV whenever you like
• Print labels with QR codes in three sizes

SHARE WITHOUT GIVING AWAY WHAT'S PRIVATE
• Create a clean image card of a specimen to share
• Prices, values, dealers, lot numbers and exact coordinates are never included

FOUND IT YOURSELF?
• Record where and when you found a shell, from your location or from the photo

PRIVATE BY DESIGN
• No ads, no analytics, no tracking
• Delete your account and all its data from Settings at any time

PLANS
• Free: up to 50 specimens, photos kept on your device
• Collector: unlimited specimens, photos stored online and synced across your devices

Shellock works on iPhone and in any browser, with the same account.

Terms of Use: https://shellock.vercel.app/terms.html
Privacy Policy: https://shellock.vercel.app/privacy.html

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Collector Monthly | $3.99 | per month |
| Collector Yearly | $34.99 | per year |


## Is Shellock safe?

Not enough ratings yet to assess Shellock.

## Is Shellock legit?

Shellock: Shell Collection has limited verification signals. The AppsHunter Legitimacy Score for Shellock is 50 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.0.1 — 2026-11-11

Shellock is now on iPad, with layouts made for the larger screen. You can also use your collection on a computer: in Settings → “Use Shellock on a computer”, set a password and sign in at shellock.vercel.app.

### 1.0 — 2026-11-10

No release notes.

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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 2026-11-12.*