Expense Register is a very simple but efficient application for keeping daily expenses.

The application is intended to be used in off-line mode. There is no integration with any online services available.

Personally I am using it together with GnuCash (http://www.gnucash.org) - the greatest financial-accounting software in the universe ;)
I keep my daily expenses in Expense Register and from time to time I export them to GnuCash.
It seems to be a common use case so I believe it can be easily adapted by Quicken, MS Money, etc. users.

The major requirement for the application was to minimize the effort needed to record expenses.
I was fed up with using general purpose notes applications and complex mobile accounting software available on the Android market.
So in Expense Register I did my best to minimize number of operations needed to perform common actions.
Expenses can be recorded either by input form or by taking a picture of the receipt.

No signup needed. No AD. No limited. No fee.
Enjoy !

Features:
* Registration of incomes and expenses
* Support for camera pictures of receipts
* Desktop widget to jump directly to expense adding form (do not move app to SD - Android does not support widgets for apps installed on external storage)
* Auto-completion feature for common descriptions and tags
* Build-in expression evaluator supporting +-*/() operators
* Exporting entries by email (you can specify your default address in settings)
TXT, ZIP (HTML) and QIF file formats are available
* Presenting simple summaries of registered expenses and incomes
* Import/Export settings from/to file

Usage Hints:
* You may use TAG field to categorize expenses. E.g. you may mark different accounts or currencies.
* You may define comma-separated lists of descriptions and tags you often use. The application will suggest them later when you start filling information about new expense.
* You may even select to automatically update common words so you don't need to enter full words almost never
* All settings might be exported for backup purpose
* If you are using Samsung SWIPE or similar virtual keyboard offering its own field auto-completion mechanism you may disable Expense Register's build in autocompletion by cleaning common words list and disabling Auto-update tags switches in settings.

Send me your feedback if you think something could be improved !