# Estai vs Geomar

The clearest difference is update cadence: Geomar at every 11 days against Estai's every 2 months. Geomar also leads on iOS requirement (15.0 vs 18.0). 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.

Estai ships an update every 2 months, Geomar every 11 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Estai | Geomar |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 11 days** |
| Monetization | — | Free |
| Size | 59 MB | 44 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | +17 |
| Developer | [Leonardo Rodrigues Fonseca de Souza](https://appshunter.io/developer/1823358473) | [Irineu Antunes](https://appshunter.io/developer/1890734508) |

## What reviewers say

### Estai

[App page](https://appshunter.io/ios/app/estai/id6757098818)

**Features:** Apple Watch app

**In-app purchases:** none


### Geomar

[App page](https://appshunter.io/ios/app/geomar/id6761667252)

Real-time GPS navigation with offline nautical charts for coastal and oceanic voyages. Plan, edit, and follow routes directly on the map with a fast and lightweight interface. Reliable at sea without internet dependency.

**Highlights:** Real-time GPS tracking, Offline nautical charts, Simplified route creation, Fast and lightweight interface, Reliable sea navigation, Professional chartplotter

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

**In-app purchases:** none


## Frequently asked questions

### Is Estai free?

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

### Is Geomar free?

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

### Do Estai or Geomar have ads?

Neither Estai nor Geomar shows ads.

### Which is updated more often, Estai or Geomar?

Estai ships an update every 2 months, and Geomar every 11 days. Most recently, Estai was updated on October 28, 2026 and Geomar on October 24, 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.*