# DattaSea vs PAM

The clearest difference is update cadence: DattaSea at every 6 days against PAM's monthly. 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.

DattaSea ships an update every 6 days, PAM monthly. The most recent releases landed on September 15, 2026 and August 6, 2026 respectively.

## The numbers

| Metric | DattaSea | PAM |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Monthly |
| Monetization | — | Free |
| Size | 35 MB | 34 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [VS DATTA IMAGEM COMERCIO E SERVICOS EIRELI](https://appshunter.io/developer/1549269090) | [Centro de Hidrografia da Marinha](https://appshunter.io/developer/1532680426) |

## What reviewers say

### DattaSea

[App page](https://appshunter.io/ios/app/dattasea/id1558841743)

**Features:** macOS Compatibility

**In-app purchases:** none


### PAM

[App page](https://appshunter.io/ios/app/pam/id6443572659)

Access marine environmental forecasts and various naval hydrography products with a single tap. Get real-time weather warnings, marine meteorology, meteograms, tide forecasts, synoptic charts, and weather analysis.

**Highlights:** Marine environmental forecasts, Weather warnings, Marine meteorology, Tide forecasts, Synoptic charts, Weather analysis

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DattaSea free?

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

### Is PAM free?

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

### Do DattaSea or PAM have ads?

Neither DattaSea nor PAM shows ads.

### Which is updated more often, DattaSea or PAM?

DattaSea ships an update every 6 days, and PAM monthly. Most recently, DattaSea was updated on September 15, 2026 and PAM on August 6, 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.*