Let me start by saying I love xpenser. But note the following:
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Why is Xpenser free? How do you plan to make money?
We'll be introducing premium accounts that'll carry a monthly fee in the near future. The goal is to keep the base product free and charge for longer data retention and other services.
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It's not yet making money, which would disqualify it from the criteria for this Ask HN
Xpenser for Business is the commercial version of the product for businesses, and it's bringing in a good bit of revenue. At the moment it's by request/invite only, but will be generally available soon. Anyone interested in an invite can send an email to feedback@xpenser.com .
Users sign up for the free product, like it (or love it it :-) ), and ask to use it in their company. The free product is acting as a very good way of bringing users to our commercial product, so it's remained free.
Cool, I'm very happy that you guys are making money!
(For what it's worth, my love is not abstract -- I actually learned something about my spending habits in the mere two weeks of using Xpenser that helped my peace of mind. It's something that makes my life demonstrably better!)
Made by a small team, doing well.