Our Apps

Trail Wallet

"Trail Wallet" Trail Wallet is an easy travel expense tracker for iOS. It makes tracking your expenses easy and fun—see our Trail Wallet page for a complete list of features.

Trail Wallet is our flagship app, with over 150,000 downloads, over 950 ratings and reviews worldwide and an average of 4.7 stars.

"Trail Wallet, available in the App Store"

Drawing Class

"Drawing Class" Drawing Class is a great little app for the travelling artist.

I built this app for myself after struggling to find a decent recreation of life drawing classes online. I wanted to be able to simulate the process without needing an internet connection so I built this simple app to solve the problem.

Load it up with photos, set the length of the class (30 minutes, one hour, or two hours), then it randomly progresses through your collection of photos beginning with 30 second gesture drawing before gradually easing you into longer poses to create more polished drawings.

We’ve teamed up with Stan Prokopenko from Proko.com to offer sets of his photos as In App Purchases within the app. The photos are well-lit and feature professional models in a wide variety of poses to push your figure drawing skills further.

The app is available now and is free on the App Store.

"Drawing Class is available in the App Store"


The WTMaths app icon WTMaths is a GCSE mathematics practice app covering the entire GCSE Maths syllabus. With over 700 original questions, learning maths has never been easier!

Simon’s dad is a qualified GCSE mathematics teacher and they worked together to produce [WTMaths][wtmaths], a comprehensive app based on England’s new GCSE(9-1) syllabus. It can be used by anyone interested in getting further practice with core mathematics topics.

The questions give you real-time feedback on your progress and cover all of the important GCSE maths topics, all laid out in a clear and easy-to-use interface.

Want to know more? Each question is linked to an online resource that dives deep into each subject area, walking you through everything you need to know about GCSE maths.

  • Each topic is tested with several questions
  • Over 1000 questions over a range of topics
  • Range of question types: answer input; selection; multiple choice; sorting
  • Daily progress stats: overall and by area
  • Each question has a full explanation of the answer
  • Each question linked directly to a relevant on-line topic page
  • Can purchase the areas in which more practice is needed
  • Independent authors that will respond to issues and requests

WTMaths is free to download and comes with a range of free questions. The complete set of questions are available as in app purchases.

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The Barista! app icon Barista! is a fast-paced coffee creation game. Can you fulfil all of the orders and get to the end of the day before your grouchy boss Jim fires you?

  • Four different drink combinations with up to 3 shots per drink to keep you on your toes!
  • Bonus Busy Days where you can double your earnings—if you can keep on top of things!
  • Up to four orders at once to really test your cool under fire!
  • Many levels of coffee-making mayhem!

Barista! is our second game, and is available for free on the App Store.

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Tap Tap Power

"Tap Tap Power" Tap Tap Power is a frantic meatspace multiplayer party game, created with my good friend Tom Krones.

Tap Tap Power is free and you can find out more at TapTapPower.com.

"Tap Tap Power, available in the App Store"