Cash Expenses is a smartphone app that helps you track your daily cash expenses. Use this app to manually enter in your cash expenses.
Customize spending categories anyway you like. And you'll get reports of your monthly spending by category.
The expense database can be exported to Quicken, GnuCash, and Excel in QIF (Quicken format) and CSV (Comma Separated Value).
Free version: All your data is saved on your phone. No sign up required. No Internet connection required. Unlimited local number of entries on your phone. Ad free.
Paid version: If you want to share cash expenses on multiple phones, accounts are available for purchase. Receipt photos are not synced.