An Android-based calculator for tracking and balancing group expenses.

You're travelling with friends, and as usual there are many bills to pay: Accommodation, restaurant bills, admittance fees, and so on. Instead of clumsily splitting each bill as it comes in anybody from the group picks up the whole check. The payer, the amount, and optionally the split ratio are entered into the app. At the end of the vacation the app will tell excatly how much each person paid and consumed. Those who paid too little put the difference into a pot, those who paid too much take out theirs, and the score is settled.

The collected data of a calculation can be written to a CSV file which can be imported into a spreadsheet application. It is recommended to use the Google spreadsheet app, which also allows for easy publication of the results. Using other applications, like Excel or LibreOffice Calc, may require manual tweaking of the embedded formulas, depending on the system language and application version.

The following import parameters should be used:

• Character set UTF-8
• Language English (using a point as decimal mark in numbers)
• Fields separated by comma
• Double quotes as text delimiter

• Managing multiple calculations in parallel
• Uneven split of expenses
• Multiple currencies per calculation
• CSV export for importing calculations into a spreadsheet application
• English, german, french and spanish localization

Binary builds are maintained by the F-Droid project and can be downloaded from:

https://f-droid.org/repository/browse/?fdid=ivl.android.moneybalance

This is my first Android project, and I'm pretty sure I'm violating about any kind of best practice there is. Don't use it as a reference if your getting started with Android yourself. Just to name a few of its shortcomings:

• I'm not using ContentProviders for database access. Should I? I'm not sure.
• I'm using floating point arithmetic for monetary calculations (the actual expenses are stored as fixed point numbers, though).

If that didn't discourage you: Have fun!

Thanks to Lars Vogel for his brilliant Android tutorials (http://www.vogella.com/android.html). Thanks also to the countless people answering questions on stackoverflow.com, or asking just what I wanted to know.

The "Coins" icon set is copyright (C) VisualPharm (http://www.visualpharm.com/finance_icon_set) and distributed under a Creative Commons Attribution-No Derivative Works 3.0 Unported license.