Invoice app

Well, your link there doesn't work, but from what I understand from your post, I think you should take a look at the search results from this page. What kind of phone do you run, as that will determine which apps you can run?

We use a very good one that runs on Android 2.0 above. Its called MobileBiz ( http://mobilebiz.imsunny.com ) and we're surprised there is actually a mature and serious invoicing app for Android. Try this one first before the others, it took us a bit of time to get to this app. It doesn't come up easily on invoice searches (too bad because it deserves to be on the top). Well anyway, it sends PDF email invoice directly to clients and can synch to your phone contacts.

The thing that amazes me is that its so feature-packed and FREE. I am a mobile contractor that needs to invoice immediately and this tool has been very helpful. It creates my estimates which I send by email, then converts it to invoice afterwards. It captures payments details and extra notes too. They have a support forum http://mobilebiz.imsunny.com/forum which looks pretty active. Hope this helps.