This apps shown here represent currently published apps portfolio.

There have been others along the way, which I have retired for various reasons.

Please contact me if you have and questions or queries about any of these applications.

I am currently developing apps for iPhone, iPad and Android devices.

I develop for iOS / iPadOS using either Xcode and Swift (or Obj-C), or using Xamarin and C#.

For Android, I also use Xamarin / C#, or Kotlin (and sometimes Java) in Android Studio.

Historically, I have done a lot of work with Microsoft Windows 10 Devices, including Windows 10 Mobile (Windows Phone).

On Windows, I develop in Visual Studio, with C#, using the UWP - Universal Windows Platform.

Please search for "Mike Irving" in the App Store, Google Play, and other app outlets.

Mike Irving Mobile Apps Portfolio.

Click through for more information on a particular mobile app.

Free / Basic Grid Reference Apps...

Grid Ref UK and Ireland

A free application giving GB and Irish Grid References, to 3 digits.

Platform: Android, iPhone, WP

Grid Ref UTM

A free Universal Transverse Mercator coordinates app.

Platform: Android, iPhone, WP

Grid Ref GK

A free to use Gauss Kruger coordinate system app.

Platform: Android, iPhone

Grid Ref CH1903

Free Swiss Grid Coordinate System navigation aid.

Platform: Android, iPhone

Amateur and Professional Use Grid Reference Apps...

GB Grid Ref Compass

GPS powered Navigation Aid,
for walkers in Great Britain.

Platform: Android, iPhone

Irish Grid Ref Compass

GPS powered Navigation Aid,
for Ireland & Northern Ireland.

Platform: Android, iPhone

UTM Grid Ref Compass

Universal Transverse Mercator geographic coord. system app.

Platform: Android, iPhone

GB Grid Ref Worker

Professional GPS & Grid Reference location software.

Platform: Android, iPhone

Utilites and Sports...

Shot Time Lite

Free edition Pool Timer App,
with In-App Purchase upgrade.

Platform: iPhone, iPod Touch

Game Turn Timer

Board Game Timing App,
for Scrabble, Chess, Monopoly.

Platform: iPhone, iPod Touch

Parenting / Children's Apps...

Photo Tap

Create your own simple picture story, for children to enjoy.

Platforms: Android, iOS

Photo Tap Lite

Ad supported version,
with In-App Purchase upgrade.

Platforms: Android, iOS