# OneSchool vs Shell Identifier

The clearest difference is in-app purchases: OneSchool at none against Shell Identifier's 4. OneSchool also leads on update cadence (fortnightly vs every 7 months) and iOS requirement (9.0 vs 17.2). On price, ads and device support there is nothing between them.

Both are free to download. Shell Identifier sells 4 in-app purchases, starting at $4.99 per 7 days. OneSchool asks for nothing beyond the download.

OneSchool ships an update fortnightly, Shell Identifier every 7 months. The most recent releases landed on September 12, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | OneSchool | Shell Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.6 (5 ratings)](https://appshunter.io/ios/app/shell-identifier-ai-scanner/id6670417306/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 7 months |
| Monetization | — | Free with in-app purchases |
| Size | 30 MB | 49 MB |
| Requires iOS | **9.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Nguyen Dinh Anh](https://appshunter.io/developer/1412615096) | [VIET NAM JINGLE SOFTWARE](https://appshunter.io/developer/1541994427) |

## What reviewers say

### OneSchool

[App page](https://appshunter.io/ios/app/oneschool/id1421659614)

**In-app purchases:** none


### Shell Identifier

[App page](https://appshunter.io/ios/app/shell-identifier-ai-scanner/id6670417306)

Identify snails, slugs, oysters, clams, and squid by taking a photo of them or their shells. Discover the name and species of various mollusks with this AI-powered tool.

**Highlights:** AI-powered identification, Identify snails and shells, Classify slugs, oysters, clams, squid, Photo-based recognition, Species and name discovery

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Shell identify pro weekly | $4.99 | per 7 days |
| Shell identify pro monthly | $9.99 | per month |
| Shell identify pro yearly | $29.99 | per year |
| Shell identify pro lifetime | $99.99 | one-time |


## Frequently asked questions

### Is OneSchool free?

OneSchool is free to download, with no in-app purchases.

### Is Shell Identifier free?

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

### Do OneSchool or Shell Identifier have ads?

Neither OneSchool nor Shell Identifier shows ads.

### Which is updated more often, OneSchool or Shell Identifier?

OneSchool ships an update fortnightly, and Shell Identifier every 7 months. Most recently, OneSchool was updated on September 12, 2026 and Shell Identifier on October 2, 2026.

---

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