Expense statement software that isn't expensive

[masteff]

What I'd like: not too difficult for an average user to figure out, can be installed on multiple computers (or a server) so each user can prepare their own exp stmt (web-based would be acceptible too), multi-currency would be nice but at least be able to designate a currency for each report, if it has "mgmt approval" features then those can be bypassed, and, not expensive (either onetime purchase or minimal per use fee).

I've looked online: most spreadsheets are too simplistic or too confusing for the average user and most software is too expensive per user or wants to charge for months even when you don't use it.

Please post or message me with any suggestions. Thanks!