# Gcoast vs Sa

The clearest difference is update cadence: Sa at every 10 days against Gcoast's every 14 months. Gcoast's advantage is iOS requirement (8.0 vs 15.6). 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.

Gcoast ships an update every 14 months, Sa every 10 days. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Gcoast | Sa |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 10 days** |
| Monetization | Free | — |
| Size | 14 MB | 33 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GISTDA](https://appshunter.io/developer/1046208414) | [Kernel Safety and Protection Company Limited](https://appshunter.io/developer/1453268143) |

## What reviewers say

### Gcoast

[App page](https://appshunter.io/ios/app/gcoast/id1192969917)

This app provides marine remote sensing data, including information on currents, wave heights, wind measurements, and marine camera status. It aims to offer continuous and sustainable data services for various sectors.

**Highlights:** Marine remote sensing data, Currents information, Wave height data, Wind measurement data, Marine camera status

**In-app purchases:** none


### Sa

[App page](https://appshunter.io/ios/app/sa-les-plus/id1480997822)

**In-app purchases:** none


## Frequently asked questions

### Is Gcoast free?

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

### Is Sa free?

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

### Do Gcoast or Sa have ads?

Neither Gcoast nor Sa shows ads.

### Which is updated more often, Gcoast or Sa?

Gcoast ships an update every 14 months, and Sa every 10 days. Most recently, Gcoast was updated on November 7, 2026 and Sa on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*