# マリンコンパス vs SEAKER TRACKER

マリンコンパス and SEAKER TRACKER are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. マリンコンパス sells 3 in-app purchases, starting at $2.99 per month and SEAKER TRACKER sells 5 in-app purchases, starting at $65.99 per year. Whichever you choose, the download price is not the number that matters.

マリンコンパス ships an update every 2 weeks, SEAKER TRACKER every 3 weeks. The most recent releases landed on September 22, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | マリンコンパス | SEAKER TRACKER |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Freemium | — |
| Size | 94 MB | 28 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [INFCAM CORPORATION](https://appshunter.io/developer/1281922536) | [HMDT Co., Ltd.](https://appshunter.io/developer/293996377) |

## What reviewers say

### マリンコンパス

[App page](https://appshunter.io/ios/app/id1467659960)

Share your sea voyage plans and real-time location with family, friends, or fellow boaters. Access marine information like coastal facilities and depth contours. Offers premium navigation features for enhanced safety and planning.

**Highlights:** Share voyage plans and location, Group sharing with family/friends, Marina and mooring facility network, Display marine information on map, Register departure/arrival reports, Premium navigation features

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| マリンコンパス フィッシャーマンズ版 | $2.99 | per month |
| マリンコンパス プロフェッショナル航海版 | $5.99 | per month |
| マリンコンパスプレミアム年額プラン | $34.99 | per year |


### SEAKER TRACKER

[App page](https://appshunter.io/ios/app/seaker-tracker/id1538676180)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 個人向けプラン | $65.99 | per year |
| ファミリープラン | $189.99 | per year |
| プロフェッショナルプラン | $299.99 | per year |
| ショッププラン | $899.99 | per year |
| SEAKERデバイスの個別追加 | $46.99 | one-time |


## Frequently asked questions

### Is マリンコンパス free?

マリンコンパス is free to download, with in-app purchases available.

### Is SEAKER TRACKER free?

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

### Do マリンコンパス or SEAKER TRACKER have ads?

Neither マリンコンパス nor SEAKER TRACKER shows ads.

### Which is updated more often, マリンコンパス or SEAKER TRACKER?

マリンコンパス ships an update every 2 weeks, and SEAKER TRACKER every 3 weeks. Most recently, マリンコンパス was updated on September 22, 2026 and SEAKER TRACKER on September 10, 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.*