# PRO CHARTS vs Aisea

The clearest difference is in-app purchases: Aisea at none against PRO CHARTS's 4. PRO CHARTS's advantage is chart position (#174 vs unranked). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. PRO CHARTS sells 4 in-app purchases, starting at $2.99 per month. Aisea asks for nothing beyond the download.

PRO CHARTS ships an update every 2 months, Aisea every 5 weeks. The most recent releases landed on October 29, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | PRO CHARTS | Aisea |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (8.5K ratings)](https://appshunter.io/ios/app/pro-charts-marine-navigation/id451093694/reviews)** | — |
| Number of ratings | **8.5K** | — |
| Positive reviews | **17.2% of reviews** | 14.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#174** | — |
| Size | 48 MB | 86 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MiraTrex, Inc.](https://appshunter.io/developer/814855898) | [Aidea Inc.](https://appshunter.io/developer/1454632788) |

## What reviewers say

### PRO CHARTS

[App page](https://appshunter.io/ios/app/pro-charts-marine-navigation/id451093694)

**Currently charting:** #174 Top Grossing · Navigation (US App Store)

Navigate marine environments with detailed nautical charts and route planning. Track your location, find friends on the water, and share your trip details for safety. Offline chart access ensures reliable navigation even without an internet connection.

**Highlights:** High-resolution NOAA nautical charts, Offline chart access, Waypoint and route creation, Buddy tracking, Float plan sharing, Point-and-steer navigation, Track recording

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Year Auto Renewing Subscription | $2.99 | per month |
| 1 Year Auto Renewing Subscription | $29.99 | per year |
| Brazil - Nautical Charts | $4.99 | one-time |
| 1 Year Subscription | $29.99 | one-time |

**What reviewers like**

- 🚀 Great for navigation
- 🗺️ Helpful for coastal areas
- 👍 Useful app overall

**What reviewers complain about**

- 🐛 Frequent crashes and glitches
- ⚠️ Subscription issues and hidden costs
- 🌐 Lacks coverage for non-US regions
- 🔒 Poor account management and support

**Reported bugs**

- Charts not loading or disappearing
- Subscription not recognized
- Login/account issues

**Requested features**

- Offline map downloads
- Depth and hazard data
- Better route planning tools


### Aisea

[App page](https://appshunter.io/ios/app/aisea-sailing-support-app/id1454632789)

This navigation app enhances maritime safety by displaying nearby vessel movements and potential collision risks. It also allows users to report hazards, review past voyages, and manage fleets. Communicate with nearby users directly through the app.

**Highlights:** AIS vessel tracking and collision alerts, Map editor for reporting hazards, Voyage playback and analysis, Fleet management tools, In-app Push-To-Talk communication

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PRO CHARTS free?

PRO CHARTS is free to download, with in-app purchases available.

### Is Aisea free?

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

### Do PRO CHARTS or Aisea have ads?

Neither PRO CHARTS nor Aisea shows ads.

### Which is updated more often, PRO CHARTS or Aisea?

PRO CHARTS ships an update every 2 months, and Aisea every 5 weeks. Most recently, PRO CHARTS was updated on October 29, 2026 and Aisea on October 15, 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.*