# iMariner Offshore

> Marine navigation app with shorelines, lighthouses, GPS, AIS, and logbook. (iPhone/iPad app by DFR Editions.)

- Source: https://appshunter.io/ios/app/imariner-offshore/id521564127 (this page in markdown: same URL + `.md`)
- Developer: [DFR Editions](https://appshunter.io/developer/506383717)
- Category: Navigation, Travel
- Price: $13.99
- Rating: 1.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 9.0 · 296 MB
- Languages: American English
- Released: 2012-04-30
- Data updated: 2026-07-07
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/imariner-offshore/id521564127/reviews.md

## What is iMariner Offshore?

Prepare your navigation and your landings : includes GSHHS shore lines, major lighthouses, GPS, AIS, magnetic variation, position of Sun and Moon, logbook.
Note : AIS display requires an AIS/Wifi gateway
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AIS : AtoN, MOB, ships
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WayPoints
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Also embedded are the USCG database and NGA database of all marine lights around the world, that have a nominal range of 10 or more Nautical Miles.
IMPORTANTE NOTICE : Mariners should consult all sources of information they have before engaging their vessel to an unkwnow area, in particular notices to mariners.
NOTICE : NGA and USCG lights databases have been extracted in Feb 2013. This application will be updated in a regular basis.
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All major ligthhouses (landing) that have a distance at least 15 NM for the following countries :
Full world coverage.
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- based on the NOAA's GSHHS Shoreline Database Version 2.2.0
- world coverage from 75°S to 75°N (poles excluded)
- zoom in and zoom out : automatically selects between the 5 GSHHS databases : full, high, intermediate, low, crude
- mercator projection
- Precise positioning of your boat and other vessels (NMEA GPS and AIS frames)
- you need a NMEA Wifi connection (TCP or UDP) with a NMEA repeater like Digital Yacht's iAIS
- log book (date,time,latitude,longitude,COG,SOG,Heading,Log,Water Depth,
  TWA,TWS,Leeway,Stream Set, Stream Drift and your comments
- log book organized in passages
- log book export via email (csv format)
- NMEA protocol debug window
- magnetic variation computed with the algorithms from the NOAA's World Magnetic Model
- distance to coast
- distance to others vessels
- 'goto boat' function
- double tap for full screen display
- integrated solar compass : the rose displays the sun and moon positions in real time

## Key features

- GSHHS shore lines
- Major lighthouses database
- GPS and AIS integration
- Magnetic variation calculation
- Detailed logbook with export
- Sun and Moon position display


## Frequently asked questions about iMariner Offshore

### What is iMariner Offshore?

iMariner Offshore is a navigation application for mariners that provides shorelines, lighthouses, GPS, AIS, and a logbook. It helps with navigation and landing preparation.

### Does iMariner Offshore require a subscription?

No, iMariner Offshore is a paid application and does not require a subscription. It is available for a one-time purchase price of $13.99.

### What devices support iMariner Offshore?

iMariner Offshore is supported on iPhone, iPad, and iPod devices. It is designed for Apple's iOS ecosystem.

### How often is iMariner Offshore updated?

The application was last updated on July 21, 2021, with version 4.1. The developer states that the application will be updated on a regular basis.

### What are the key navigation features of iMariner Offshore?

Key features include GSHHS shore lines, major lighthouses, GPS and AIS display (requires gateway), magnetic variation calculation, and a detailed logbook.

### Is iMariner Offshore suitable for beginners?

While it offers advanced features, the app's description includes an important notice for mariners to consult all sources of information. It is best suited for experienced mariners.

### Does iMariner Offshore have ads?

No, iMariner Offshore does not contain advertisements. It is a paid application with no in-app purchases or ads.

### What is the user rating for iMariner Offshore?

The app has a rating of 1.0 stars from 1 rating. This indicates very limited user feedback available at this time.

## Version history (last 5 releases)

### 4.1 — 2021-07-21

- fix some display issues when in landscape
- SOG much more visible
- Text in white
- Don't display wind if info is not available
- Udp broadcast support (without ip address)

### 4.0 — 2021-06-12

Rework for new AppStore standards.

### 3.4 — 2017-10-02

Corrects an issue with GPS notifications in iOS11
Tested with Vesper Marine XB-8000
Tested with ShipModule Miniplex-3

### 3.3 — 2017-02-21

Compatibility with VesperMarine XB-8000 AIS/Wifi gateway
Output $--RMB messages to an autopilot

### 3.2 — 2016-05-13

- double finger press to display AIS targets information
- single finger press to add/remove WP
- AIS age
- MOB, EPIRB, SART
- Wind speed
- WP, bearing, distance, VMG, TTG
- AtoN (AIS type 21)

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## More apps by DFR Editions

- [Hand Bearing Compass](https://appshunter.io/ios/app/hand-bearing-compass/id506383714)
- [Solar Compass by iMariner](https://appshunter.io/ios/app/solar-compass-by-imariner/id509901059)
- [iMariner Celestial Navigation](https://appshunter.io/ios/app/imariner-celestial-navigation/id510326933)
- [NMEALink](https://appshunter.io/ios/app/nmealink/id857780122)

All apps by DFR Editions: https://appshunter.io/developer/506383717

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-07.*