# Memory vs Open Sea OpenSeaMap Browser

The clearest difference is rating: Memory at 4.5 against Open Sea OpenSeaMap Browser's 3.2. Memory also leads on review sentiment (64% vs 25%) and update cadence (every 2 months vs every 102 months). Open Sea OpenSeaMap Browser's advantage is in-app purchases (none vs 16). On price, ads and device support there is nothing between them.

Both are free to download. Memory sells 16 one-off in-app purchases. Open Sea OpenSeaMap Browser asks for nothing beyond the download.

Memory holds the better App Store score, 4.5 against 3.2. That said, the two scores are not equally well evidenced: Memory has 52 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 64% of Memory's written reviews are positive against 25% of Open Sea OpenSeaMap Browser's.

Memory ships an update every 2 months, Open Sea OpenSeaMap Browser every 102 months. The most recent releases landed on October 7, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Memory | Open Sea OpenSeaMap Browser |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (52 ratings)](https://appshunter.io/ios/app/memory-map/id354675923/reviews)** | [3.2 (5 ratings)](https://appshunter.io/ios/app/open-sea-openseamap-browser/id1028248846/reviews) |
| Number of ratings | **52** | 5 |
| Positive reviews | **64.3% of reviews** | 25.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 102 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 5 MB | 1 MB |
| Requires iOS | **11.4** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Memory-Map](https://appshunter.io/developer/349996087) | [Mobile Geographics](https://appshunter.io/developer/286844996) |

## What reviewers say

### Memory

[App page](https://appshunter.io/ios/app/memory-map/id354675923)

Transform your device into an outdoor GPS or marine chart plotter with detailed offline maps. Track your location even without a signal, plan routes on your computer, and analyze your adventures. Trusted by professionals for various outdoor activities.

**Highlights:** Offline Topo and Marine Charts, GPS Location Tracking, Route Planning & Measurement, GPX File Import/Export, Tracklog Recording & Analysis, NMEA/AIS Instrument Connectivity, Coordinate System Support

**Features:** Vision Pro support

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| USGS Topo NY | $9.99 | one-time |
| USGS Topo AK | $9.99 | one-time |
| USGS Topo Atlantic | $9.99 | one-time |
| USGS Topo CA | $9.99 | one-time |
| USGS Topo New England | $9.99 | one-time |
| USGS Topo TX | $9.99 | one-time |
| USGS Topo WA | $9.99 | one-time |
| USGS Topo WV | $9.99 | one-time |
| USGS Topo AZ | $9.99 | one-time |
| USGS Topo WY | $9.99 | one-time |
| USGS Topo FL | $9.99 | one-time |
| USGS Topo GA | $9.99 | one-time |
| Import 3rd Party maps | $12.99 | one-time |
| DeLorme Topo Map CA | $19.99 | one-time |
| DeLorme Topo Map ME | $19.99 | one-time |
| Professional Features | $49.99 | one-time |

**What reviewers like**

- 🚀 Excellent for navigation
- 👍 Reliable and dependable
- 💡 Detailed topographic and marine charts
- 🗺️ Offline map access
- 🗺️ Whole country maps available

**What reviewers complain about**

- 🐛 Occasional crashes and freezes
- 🔍 Complicated licensing and map management system
- 💰 Expensive map purchases
- 🤖 Limited functionality on iOS compared to PC version
- 🗺️ Some maps are outdated

**Reported bugs**

- Tracking stops when app is in background
- Map sections disappear after device upgrades
- Unresponsive UI elements on newer iOS devices

**Requested features**

- Automatic map updates
- Easier map licensing and management across devices
- Improved route planning and tracking features
- Compass and heading orientation
- Apple CarPlay integration


### Open Sea OpenSeaMap Browser

[App page](https://appshunter.io/ios/app/open-sea-openseamap-browser/id1028248846)

This app provides access to nautical chart data and map image tiles generated by a collaborative open-source mapping project. It serves as a browser for freely usable marine navigation information.

**Highlights:** Nautical chart data access, Map image tile generation, Open-source mapping project browser, Freely usable marine navigation info

**In-app purchases:** none


## Frequently asked questions

### Is Memory free?

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

### Is Open Sea OpenSeaMap Browser free?

Open Sea OpenSeaMap Browser is free to download, with no in-app purchases.

### Which has better reviews, Memory or Open Sea OpenSeaMap Browser?

Memory is rated higher. Memory averages 4.5 out of 5 from 52 ratings, while Open Sea OpenSeaMap Browser averages 3.2 from 5 ratings.

### Do Memory or Open Sea OpenSeaMap Browser have ads?

Neither Memory nor Open Sea OpenSeaMap Browser shows ads.

### Which is updated more often, Memory or Open Sea OpenSeaMap Browser?

Memory ships an update every 2 months, and Open Sea OpenSeaMap Browser every 102 months. Most recently, Memory was updated on October 7, 2026 and Open Sea OpenSeaMap Browser on September 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.*