# GPS 2 IP vs SeaNav

The clearest difference is price: SeaNav at Free against GPS 2 IP's $7.99. SeaNav also leads on update cadence (every 3 weeks vs every 3 months) and ratings volume (247 vs 15). GPS 2 IP's advantage is in-app purchases (none vs 18) and chart position (#30 vs unranked). On review sentiment, ads, device support and iOS requirement there is nothing between them.

SeaNav is free to download; GPS 2 IP costs $7.99 up front. SeaNav sells 18 in-app purchases, starting at $4.99 per year. GPS 2 IP asks for nothing beyond the download.

SeaNav holds the better App Store score, 4.4 against 4.2. That said, the two scores are not equally well evidenced: SeaNav has 247 ratings behind it against 15, so its average is the more settled of the two. Written reviews complicate that: 58% of GPS 2 IP's written reviews are positive against 55% of SeaNav's, so the app with the better star average is not the one people write more warmly about.

GPS 2 IP ships an update every 3 months, SeaNav every 3 weeks. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | GPS 2 IP | SeaNav |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | [4.2 (15 ratings)](https://appshunter.io/ios/app/gps-2-ip/id408625926/reviews) | **[4.4 (247 ratings)](https://appshunter.io/ios/app/seanav/id857841271/reviews)** |
| Number of ratings | 15 | **247** |
| Positive reviews | **58.5% of reviews** | 54.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#30** | — |
| Size | 13 MB | 159 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Angus Oliver](https://appshunter.io/developer/388015604) | [Pocket Mariner Ltd.](https://appshunter.io/developer/719592131) |

## What reviewers say

### GPS 2 IP

[App page](https://appshunter.io/ios/app/gps-2-ip/id408625926)

**Currently charting:** #30 Top Paid · Navigation (US App Store)

Stream real-time GPS NMEA location data from your iPhone or iPad to other devices. Ideal for advanced navigation software and enthusiasts who need external GPS capabilities.

**Highlights:** Stream NMEA GPS data wirelessly, Connect via Wi-Fi or Bluetooth LE, Push data to online servers (TCP/UDP), Supports TAIP protocol, Unique device identifiers, Automatic restart after device reboot, Selectable NMEA messages

**Features:** Vision Pro support

**In-app purchases:** none


### SeaNav

[App page](https://appshunter.io/ios/app/seanav/id857841271)

This app provides high-resolution marine charts, route planning, and real-time navigation for boaters. It offers features like AIS ship tracking, tide and weather information, and offline chart access. Advanced capabilities include augmented reality views and autopilot integration.

**Highlights:** High-resolution marine charts, Autoroute planning, Real-time GPS navigation, AIS ship tracking, Tides and weather, Offline chart access, Augmented Reality View

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weather charts | $4.99 | per year |
| New Zealand Charts | $5.99 | per year |
| NOAA US Raster Charts | $9.99 | per year |
| US Charts | $9.99 | per month |
| Pro Features | $10.49 | per year |
| Bermuda and BVI Charts | $12.99 | per year |
| Italy, Sardinia and Sicily | $17.99 | per year |
| Norwegian Charts | $18.49 | per year |
| US Charts | $19.99 | per year |
| Portuguese Charts | $19.99 | per year |
| BE & NL Charts | $20.99 | per year |
| Spanish Charts | $24.99 | per year |
| UK & IE Charts | $24.99 | per year |
| French Charts | $24.99 | per year |
| Canadian Charts | $26.99 | per year |
| Croatian Charts | $28.49 | per year |
| Man Overboard & Anchor Watch | $4.99 | one-time |
| Pro Features | $14.99 | one-time |

**What reviewers like**

- 👍 Easy to use and great price
- 👍 Much easier to use than competitors
- 👍 UKHO Charts at a reasonable price
- 👍 Intuitive interface, clear and uncluttered
- 👍 Supports NMEA data integration

**What reviewers complain about**

- 🐛 Frozen/locked app
- 💰 Neil and dime for everything
- ❌ Not picking up vessels or ship traffic
- ❌ Charts not good, weather not working
- ❌ Difficult to download and update charts

**Reported bugs**

- Frozen/locked app
- Not picking up vessels or ship traffic
- App does not open
- Crashes after crashes
- Sailing mode crash

**Requested features**

- Can you see water depth on Apple Watch?
- Download all purchased charts button
- Update all purchased charts button
- Legend for symbols and colors
- Brief chart reading explainer


## Frequently asked questions

### Is GPS 2 IP free?

GPS 2 IP costs $7.99, with no in-app purchases.

### Is SeaNav free?

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

### Which has better reviews, GPS 2 IP or SeaNav?

SeaNav is rated higher. GPS 2 IP averages 4.2 out of 5 from 15 ratings, while SeaNav averages 4.4 from 247 ratings.

### Do GPS 2 IP or SeaNav have ads?

Neither GPS 2 IP nor SeaNav shows ads.

### Which is updated more often, GPS 2 IP or SeaNav?

GPS 2 IP ships an update every 3 months, and SeaNav every 3 weeks. Most recently, GPS 2 IP was updated on September 21, 2026 and SeaNav on September 22, 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.*