# Memory vs NV Charts GPS Navigation AIS

The clearest difference is update cadence: NV Charts GPS Navigation AIS at every 3 weeks against Memory's every 2 months. Memory's advantage is review sentiment (64% vs 54%) and iOS requirement (11.4 vs 16.6). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Memory sells 16 one-off in-app purchases and NV Charts GPS Navigation AIS sells 14 in-app purchases, starting at $49.99 per year. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for Memory against 4.5 for NV Charts GPS Navigation AIS. Both are backed by a comparable volume of ratings — 52 and 114 respectively. Written reviews are what separate them: 64% of Memory's written reviews are positive against 54% of NV Charts GPS Navigation AIS's.

Memory ships an update every 2 months, NV Charts GPS Navigation AIS every 3 weeks. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Memory | NV Charts GPS Navigation AIS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (52 ratings)](https://appshunter.io/ios/app/memory-map/id354675923/reviews) | [4.5 (114 ratings)](https://appshunter.io/ios/app/nv-charts-gps-navigation-ais/id659569095/reviews) |
| Number of ratings | 52 | **114** |
| Positive reviews | **64.3% of reviews** | 54.2% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 5 MB | 78 MB |
| Requires iOS | **11.4** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Memory-Map](https://appshunter.io/developer/349996087) | [NV Chart Group GmbH](https://appshunter.io/developer/659569098) |

## 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


### NV Charts GPS Navigation AIS

[App page](https://appshunter.io/ios/app/nv-charts-gps-navigation-ais/id659569095)

This app provides digital nautical charts and navigation tools for safe boating. It offers offline chart downloads, real-time AIS tracking, and community-shared points of interest. Plan and share your routes with ease.

**Highlights:** Digital nautical charts, Offline chart downloads, Real-time AIS tracking, Community points of interest, Auto-routing, GPX file export

**Features:** Family Sharing, Vision Pro support

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Baltic Sea and Kattegat | $49.99 | per year |
| Norway | $49.99 | per year |
| Netherlands | $49.99 | per year |
| Mediterranean West | $49.99 | per year |
| Mediterranean East | $49.99 | per year |
| France Atlantik | $49.99 | per year |
| Cuba | $49.99 | per year |
| Croatia | $49.99 | per year |
| Caribbean and Bermuda | $49.99 | per year |
| Atlantic Islands | $49.99 | per year |
| Florida and Bahamas | $49.99 | per year |
| German Inland Waters | $49.99 | per year |
| UK South | $49.99 | per year |
| Northsea | $49.99 | per year |


## Frequently asked questions

### Is Memory free?

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

### Is NV Charts GPS Navigation AIS free?

NV Charts GPS Navigation AIS is free to download, with in-app purchases available.

### Which has better reviews, Memory or NV Charts GPS Navigation AIS?

Memory and NV Charts GPS Navigation AIS are both rated 4.5 out of 5 on the App Store, from 52 and 114 ratings respectively.

### Do Memory or NV Charts GPS Navigation AIS have ads?

Neither Memory nor NV Charts GPS Navigation AIS shows ads.

### Which is updated more often, Memory or NV Charts GPS Navigation AIS?

Memory ships an update every 2 months, and NV Charts GPS Navigation AIS every 3 weeks. Most recently, Memory was updated on October 16, 2026 and NV Charts GPS Navigation AIS on October 17, 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.*