# 台灣蛙類圖鑑 vs Seashell Identifier

The clearest difference is price: Seashell Identifier at Free against 台灣蛙類圖鑑's $2.99. Seashell Identifier also leads on update cadence (monthly vs every 7 months). 台灣蛙類圖鑑's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 15.1). On ads and device support there is nothing between them.

Seashell Identifier is free to download; 台灣蛙類圖鑑 costs $2.99 up front. Seashell Identifier sells 2 in-app purchases, starting at $4.99 per 7 days. 台灣蛙類圖鑑 asks for nothing beyond the download.

台灣蛙類圖鑑 ships an update every 7 months, Seashell Identifier monthly. The most recent releases landed on September 15, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | 台灣蛙類圖鑑 | Seashell Identifier |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[3.8 (16 ratings)](https://appshunter.io/ios/app/seashell-identifier-shellium/id6752956065/reviews)** |
| Number of ratings | — | **16** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 218 MB | 48 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [城邦出版集團](https://appshunter.io/developer/350997900) | [Roman Pieskov](https://appshunter.io/developer/1758891658) |

## What reviewers say

### 台灣蛙類圖鑑

[App page](https://appshunter.io/ios/app/id1438077016)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Seashell Identifier

[App page](https://appshunter.io/ios/app/seashell-identifier-shellium/id6752956065)

Instantly identify seashells from photos using AI. Learn about different species, track your discoveries, and test your knowledge with an interactive quiz. Perfect for beachcombers, collectors, and anyone curious about marine life.

**Highlights:** Instant seashell identification from photos, AI-powered scanner with confidence scores, Detailed seashell profiles, Identification history, Interactive quiz game, Community trending shells

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 Week | $4.99 | per 7 days |
| Premium 1 Year | $29.99 | per year |


## Frequently asked questions

### Is 台灣蛙類圖鑑 free?

台灣蛙類圖鑑 costs $2.99, with no in-app purchases.

### Is Seashell Identifier free?

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

### Do 台灣蛙類圖鑑 or Seashell Identifier have ads?

Neither 台灣蛙類圖鑑 nor Seashell Identifier shows ads.

### Which is updated more often, 台灣蛙類圖鑑 or Seashell Identifier?

台灣蛙類圖鑑 ships an update every 7 months, and Seashell Identifier monthly. Most recently, 台灣蛙類圖鑑 was updated on September 15, 2026 and Seashell Identifier on September 8, 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.*