# Crystal Cove Tides vs Sea Shell Identifier

The clearest difference is in-app purchases: Crystal Cove Tides at none against Sea Shell Identifier's 2. Crystal Cove Tides also leads on iOS requirement (12.0 vs 18.0). Sea Shell Identifier's advantage is update cadence (monthly vs every 40 months). On price, ads and device support there is nothing between them.

Both are free to download. Sea Shell Identifier sells 2 in-app purchases, starting at $5.99 per 7 days. Crystal Cove Tides asks for nothing beyond the download.

Crystal Cove Tides ships an update every 40 months, Sea Shell Identifier monthly. The most recent releases landed on September 29, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Crystal Cove Tides | Sea Shell Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (7 ratings)](https://appshunter.io/ios/app/sea-shell-identifier-shellie/id6747922017/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 40 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 18 MB | 18 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Gearley](https://appshunter.io/developer/397702726) | [NBApps](https://appshunter.io/developer/1443534730) |

## What reviewers say

### Crystal Cove Tides

[App page](https://appshunter.io/ios/app/crystal-cove-tides/id994073788)

**In-app purchases:** none


### Sea Shell Identifier

[App page](https://appshunter.io/ios/app/sea-shell-identifier-shellie/id6747922017)

Instantly identify seashells with AI by taking a photo. Discover detailed species information, estimated value, rarity, and track your finds on a map to build a digital collection.

**Highlights:** AI-powered shell identification, Detailed species information, Estimated market value and rarity, Geolocation tracking of finds, Digital shell collection builder, Offline identification capabilities

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited - One Week | $5.99 | per 7 days |
| Unlimited - One Year | $39.99 | per year |


## Frequently asked questions

### Is Crystal Cove Tides free?

Crystal Cove Tides is free to download, with no in-app purchases.

### Is Sea Shell Identifier free?

Sea Shell Identifier is free to download, with in-app purchases available.

### Do Crystal Cove Tides or Sea Shell Identifier have ads?

Neither Crystal Cove Tides nor Sea Shell Identifier shows ads.

### Which is updated more often, Crystal Cove Tides or Sea Shell Identifier?

Crystal Cove Tides ships an update every 40 months, and Sea Shell Identifier monthly. Most recently, Crystal Cove Tides was updated on September 29, 2026 and Sea Shell Identifier on October 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*