# MID WiFi (Free)

> Marine navigation and instrument display app with route planning and autopilot control. (iPhone/iPad app by Veera Solutions Oy.)

- Source: https://appshunter.io/ios/app/mid-wifi-free/id505866174 (this page in markdown: same URL + `.md`)
- Developer: [Veera Solutions Oy](https://appshunter.io/developer/428752973)
- Category: Sports, Navigation
- Price: Free
- Rating: 3.40/5 from 5 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 10 MB
- Languages: English
- Released: 2012-03-07
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/mid-wifi-free/id505866174/reviews.md

## What is MID WiFi (Free)?

Evaluation version of MID WiFi and Marine Instrument Display.

Marine Instrument Display WiFi allows you to create/follow/transfer routes, track your path, control autopilot, receive/store/forward NMEA0183 data over WiFi and see AIS targets on the map. Send/receive data through iCloud (e.g. remote anchor alarm).

MID WiFi also features the world's first autopilot controller app for Apple Watch.

Search "Marine Instrument Display" for Lite version.

FEATURES
- Compass Heading (mag/true) (HDG)
- Clock (utc/local) (CLK)
* Course Over Ground (COG)
* Speed Over Ground (SOG)
* Average SOG (ASOG)
* Maximum SOG (MSOG)
* Trip Distance (TRIP)
* Trip Time (TIME)
* Countdown Timer (CDT)
* Distance to Line (DTL)
* Time to Line (TTL) 
* Barometric Pressure (BPR) (NMEA or iPhone6->)
* Bearing to Waypoint (BTW) 
* Distance to Waypoint (DTW) 
* Time to Waypoint (TTG) 
* Cross Track Error (XTE)
* Velocity Made Good to Waypoint (VMGwpt)
* Heeling (HLG)
* Position
** Apparent Wind Angle and Speed (AWA, AWS)
** True Wind Angle and Speed (TWA, TWS)
** Maximum Apparent/True Wind Speed (MAWS, MTWS)
** True Wind Direction (TWD)
** Velocity Made Good to Wind (VMGwnd)
** Boat Speed (SPD)
** Maximum Boat Speed (MSPD)
** Depth (DPT)
** Air and Sea Temperatures (AIR, SEA)
** Predicted Boat Speed (PSPD)
** Boat Speed to Predicted Boat Speed Ratio (SPR)
** Revolutions Per Minute (Engine/Shaft) (RPM)
** Propeller Pitch (PRP)
** NoLand Eng. Analog Values (EAV1-5)
** TackTick FFP1-4
** Rate of Turn (ROT)
** Fluid Levels (TANKS)

*  = Internal GPS or NMEA-WiFi bridge required
** = NMEA-WiFi bridge required (e.g. Vesper Marine XB-8000 and WatchMate Vision, Simrad GoFree WIFI-1, RS232-WiFi, Digital Yacht iAIS/WLN10, ShipModul MiniPlex-2/3Wi, PilotsTech PilotPlug, iMux, Ockam LANbridge)

WIND VIEW
- Shows Apparent and True Wind Angles simultaneously 
- Size of the blue sector indicates the variation in wind direction
- Red dot shows the BTW

MAP VIEW
- AIS targets (**
- Create and follow routes
- Transfer routes on NMEA
- Create and replay tracks
- Autopilot control (Raymarine, requires MiniPlex-3Wi) 
- Share tracks and data by email (GPX, NMEA)
- Access stored NMEA data via iTunes File Sharing

ALARMS
- Depth (Deep, Shallow)
- Anchor (Deep, Shallow, Distance)
- Wind (AWA/TWA/AWS/TWS High/Low, TWD Shift)

HOW TO USE
- Tap the SET to enter the Settings page
- Tap the value of any field to cycle through the color modes
- Tap/swipe the title of any field (such as TIME) to select the data to the field
- Tap a unit to cycle through the unit modes
- Tap the unit (°) of the heeling (HLG) to calibrate (zero angle)
- Press the value of any field at least two seconds to reset the TIME, ASOG, MSOG and TRIP
- Rename a route or a track by tapping the name of it
- Use IP address 255.255.255.255 for the UDP broadcast/multicast. The port for the Simrad GoFree discovery is 2050 or 2052, 5000-5010 are for Ockam LANbridge and 55554 for SailTimer Wind Vane.
- Use 127.0.0.1 and port 55554 SailTimer Wind Instrument
- NMEA0183 data can be forwarded as UDP multicast to other devices

- The trip time runs while moving (SOG > 0)
- The COG is shown while moving (SOG > 0)

COUNTDOWN TIMER
- Configure the start time (1 - 30 minutes) by touching the SET to enter the Settings view
- Start/sync the timer by touching the "sync"
- Stop the timer by touching the "sync" at least two seconds
- The timer beeps every minute and when 50, 40, 30, 20, 10, 5, 4, 3, 2, 1, 0 second(s) are remaining

CALIBRATION
1. The back cover must be faced forward accurately in order to get the correct compass heading.
2. Mount the iPhone/iPad securely and make sure it cannot move accidentally to ANY direction.
3. Tap the unit field (°) of the heeling (HLG). HLG is set to zero and the heading shows the correct value.

Continued use of GPS running in the background can dramatically decrease battery life.

## Key features

- NMEA0183 data over WiFi
- Route creation and following
- Autopilot control
- AIS target display
- Customizable alarms
- Wind data display

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/mid-wifi-free/id505866174/reviews.md

### 3/5 — Has potential, but appears abandoned.

*2023-01-23*

After getting a fully bidirectional seatalk wifi bridge (NMEA3WIFI), the auto pilot controls work.
The UI is glitchy and appears to require internet.
My old iPad appears to work better than newer iPhone.

### 3/5 — So much potential - and almost there

*2020-09-24*

Gave this 3 stars because it has so much potential.  Currently not usable and do not get the paid version or you will be unhappy!  ****Save your money and read this review****

1) some data from nmea1083 stream comes in fine but depth does not and wind data is intermittent.  Same data stream to other apps was solid.
2) iPad is stuck in setting screen where you configure server.  Server is configured and you can see data stream, but you cannot get to done button or error report button.  Have reset iPad, rebooted, and deleted and reinstalled app.  No change so it is stuck.  iPhone does not have this issue.
3) please allow changing of data field by long press to bring up menu to scroll through available data fields- as opposed to endless taping to cycle through fields.
4) allow a temp license for paid application.
5) allow user to customize how many data fields are shown.  Would be great to use iPad as a mast display and have 4-5 fields shown so that you can read field heading and units from a distance.

Fix these, make it stable and I would gladly pay $40+ for this application.  Let me know if the android version is better and I would go that route!

### 2/5 — Couldn’t find the “set” button

*2020-06-23*

Couldn’t find the “set” button mentioned in the instructions.  Therefore couldn’t evaluate the NMEA functionality.  In any case the idea to tap on displays in a round robin fashion (i.e. having to to tap an unknown number of times to get back) is super frustrating and is a no-go.  We are in 2nd decade of the 21st century.  Why mimic something from the 90s?

### 1/5 — not working with latest iPhone

*2018-09-27, version 4.1*

Will it be updated?

### 5/5 — Excellent sailing instruments app

*2015-01-09, version 1.42.2*

I have a small sailing boat with no instrumentation and this app provides very easy to operate and read instruments. I can't vouch for the wind display as I don't have a suitable wifi wind device but what I can use is great.

### 5/5 — A Winning App

*2013-02-12*

A low cost way to get your yachts instrument data available on a remote device - your iPhone. Great presentation of data. Very easy to select data to be shown in the order and units of your choice. Great feature that shows actual performance vs. boat's polar data. Excellent support. Simple WiFi setup.

## Frequently asked questions about MID WiFi (Free)

### What marine data does MID WiFi display?

MID WiFi displays a comprehensive range of marine data including compass heading, speed over ground, wind angles and speed, depth, air and sea temperatures, and engine RPMs. It can also display NMEA0183 data from compatible devices.

### Can MID WiFi control my autopilot?

Yes, MID WiFi offers autopilot control for compatible systems, such as Raymarine, when used with a MiniPlex-3Wi. It also features the world's first autopilot controller app for Apple Watch.

### How does MID WiFi handle routes and tracks?

You can create, follow, and transfer routes over NMEA. The app also allows you to track your path, create and replay tracks, and share tracks and data via email in GPX and NMEA formats.

### What types of alarms can MID WiFi provide?

MID WiFi offers customizable alarms for depth (deep, shallow), anchor (deep, shallow, distance), and wind conditions (high/low AWA/TWA/AWS/TWS, TWD shift). These help keep you informed of critical changes.

### Does MID WiFi require any special hardware?

Some features, like AIS targets and advanced wind data, require a NMEA-WiFi bridge (e.g., Vesper Marine XB-8000). However, basic functions can utilize the iPhone's internal GPS.

### Is MID WiFi available on other platforms?

MID WiFi is designed for Apple devices, including iPhone, iPad, and Apple Watch. A Lite version, 'Marine Instrument Display', is also available for search.

### How often is MID WiFi updated?

The latest version, 4.3, was released on January 20, 2019. While the app hasn't seen a recent update, its core features remain functional for its intended purpose.

### What is the user sentiment for MID WiFi?

MID WiFi has an average rating of 3.4 stars from 5 ratings. This suggests a mixed reception, with some users finding it valuable and others encountering issues or desiring more features.

## Version history (last 5 releases)

### 4.3 — 2019-01-20

iPhone X, XS, XR improvements

### 4.1 — 2018-07-10

Minor bug fixes

### 4.0 — 2016-09-23

- iOS 10 and WatchOS 3 compatibility
- Double taps replaced with touch and hold (Watch)

### 3.12 — 2016-08-17

Version 3.12
- Bug fixes (AIS - Rate Of Turn)

Version 3.11
- Bug fixes

Version 3.10
- Black text / white background for Map View
- Bug fixes

Version 3.9
- Select HDG or COG for the boat symbol on the map with a tap
- Change readings with a tap (forward) or a right swipe (reverse)
- Support for ShipModul MXPGN sentence (N2K PGN Fluid Level 127505)

### 3.11 — 2016-08-09

Version 3.11
- Bug fixes

Version 3.10
- Black text / white background for Map View
- Bug fixes

Version 3.9
- Select HDG or COG for the boat symbol on the map with a tap
- Change readings with a tap (forward) or a right swipe (reverse)
- Support for ShipModul MXPGN sentence (N2K PGN Fluid Level 127505)

Version 3.8
- Wind vector (Map View)
- Support for SailTimer PSTW sentence

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## More apps by Veera Solutions Oy

- [Kelikamerat](https://appshunter.io/ios/app/kelikamerat/id437755501)
- [MID WiFi](https://appshunter.io/ios/app/mid-wifi/id468595285)

All apps by Veera Solutions Oy: https://appshunter.io/developer/428752973

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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 2026-06-10.*