# 南国魚ガイド(1700種類の魚図鑑) vs mog

The clearest difference is price: mog at Free against 南国魚ガイド(1700種類の魚図鑑)'s $2.99. mog also leads on update cadence (every 10 days vs every 8 months). 南国魚ガイド(1700種類の魚図鑑)'s advantage is ads (none vs shown) and iOS requirement (9.0 vs 18.2). On in-app purchases and device support there is nothing between them.

mog is free to download; 南国魚ガイド(1700種類の魚図鑑) costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

南国魚ガイド(1700種類の魚図鑑) ships an update every 8 months, mog every 10 days. The most recent releases landed on October 8, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 南国魚ガイド(1700種類の魚図鑑) | mog |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 10 days** |
| Monetization | Paid | — |
| Size | 199 MB | 43 MB |
| Requires iOS | **9.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [KATSUHISA MURAMATSU](https://appshunter.io/developer/710480115) | [Yoshimune Tanino](https://appshunter.io/developer/1809926738) |

## What reviewers say

### 南国魚ガイド(1700種類の魚図鑑)

[App page](https://appshunter.io/ios/app/1700/id710480112)

A comprehensive underwater creature guide featuring over 1700 species with nearly 2800 high-quality photos. Explore fish from diverse global diving locations, with offline access and customizable features for personal logging and identification. Includes bonus guides for sea slugs, shrimp, crabs, and other marine life.

**Highlights:** 1700+ fish species database, 2800+ underwater photos, Offline access (no network required), Search by name, shape, region, Customizable checklists, labels, and notes, Quiz modes for identification practice, Includes sea slug, shrimp, and crab guides

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

**In-app purchases:** none


### mog

[App page](https://appshunter.io/ios/app/mog-log/id6744916908)

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

**In-app purchases:** none


## Frequently asked questions

### Is 南国魚ガイド(1700種類の魚図鑑) free?

南国魚ガイド(1700種類の魚図鑑) costs $2.99, with no in-app purchases.

### Is mog free?

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

### Do 南国魚ガイド(1700種類の魚図鑑) or mog have ads?

mog shows ads; 南国魚ガイド(1700種類の魚図鑑) does not.

### Which is updated more often, 南国魚ガイド(1700種類の魚図鑑) or mog?

南国魚ガイド(1700種類の魚図鑑) ships an update every 8 months, and mog every 10 days. Most recently, 南国魚ガイド(1700種類の魚図鑑) was updated on October 8, 2026 and mog on October 7, 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.*