# Seashell ID vs ShellLog

The clearest difference is ads: ShellLog at none against Seashell ID's shown. Seashell ID's advantage is update cadence (fortnightly vs every 6 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Seashell ID sells 2 in-app purchases, starting at $4.99 per month and ShellLog sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Seashell ID ships an update fortnightly, ShellLog every 6 weeks. The most recent releases landed on October 25, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Seashell ID | ShellLog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 6 weeks |
| Size | 36 MB | 45 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [华珍 许](https://appshunter.io/developer/6790236293) | [kazuki korenori](https://appshunter.io/developer/1884835388) |

## What reviewers say

### Seashell ID

[App page](https://appshunter.io/ios/app/seashell-id-shell-scan/id6801794285)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Seashell ID Pro — Monthly | $4.99 | per month |
| Seashell ID Pro — Yearly | $19.99 | per year |


### ShellLog

[App page](https://appshunter.io/ios/app/shelllog-seashell-catalog/id6802552079)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ShellLog Pro | $6.99 | one-time |


## Frequently asked questions

### Is Seashell ID free?

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

### Is ShellLog free?

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

### Do Seashell ID or ShellLog have ads?

Seashell ID shows ads; ShellLog does not.

### Which is updated more often, Seashell ID or ShellLog?

Seashell ID ships an update fortnightly, and ShellLog every 6 weeks. Most recently, Seashell ID was updated on October 25, 2026 and ShellLog on October 16, 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.*