# CDT VN vs Sea Tracking

The clearest difference is update cadence: CDT VN at every 2 days against Sea Tracking's every 27 months. Sea Tracking's advantage is iOS requirement (12.0 vs 15.5). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CDT VN ships an update every 2 days, Sea Tracking every 27 months. The most recent releases landed on October 19, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | CDT VN | Sea Tracking |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 15.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 27 months |
| Monetization | Free | — |
| Size | 70 MB | 55 MB |
| Requires iOS | 15.5 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [GEOGRAPHY SOFTWARE JOINT STOCK COMPANY](https://appshunter.io/developer/1148381187) | [DANG VU NGHI](https://appshunter.io/developer/1317506082) |

## What reviewers say

### CDT VN

[App page](https://appshunter.io/ios/app/cdt-vn/id1469180146)

This system helps fishermen manage their catch logs, transfers, and port permits. It also assists processing plants in obtaining origin certificates for seafood products and enables authorities to oversee fishing and export activities.

**Highlights:** Catch log management, Fishing transfer tracking, Port entry/exit permits, Seafood origin certificates, Fishing and export data management

**Features:** Vision Pro support

**In-app purchases:** none


### Sea Tracking

[App page](https://appshunter.io/ios/app/sea-tracking/id1542313911)

**In-app purchases:** none


## Frequently asked questions

### Is CDT VN free?

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

### Is Sea Tracking free?

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

### Do CDT VN or Sea Tracking have ads?

Neither CDT VN nor Sea Tracking shows ads.

### Which is updated more often, CDT VN or Sea Tracking?

CDT VN ships an update every 2 days, and Sea Tracking every 27 months. Most recently, CDT VN was updated on October 19, 2026 and Sea Tracking 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.*