Freshbooks was a great app back in the day, when it was the only online invoicing system for freelancers. Since then, they've really dropped the ball. What used to be billed as an invoicing system (its true value), is no longer its focus. In fact, they now bill it as, "Cloud Accounting," a crowded space in which others do a much better job, for a lot less money.
They keep plugging their "endorsements" on their home page, but most of those are pretty dated at this point.
They've gotten to the point where the freelancer is pretty much ignored, lacking such "basics" as simple retainer billing, and a mobile responsive site, which are still conspicuous by their absence after several years.
Granted, they've got an awesome support department, but have allowed support to deteriorate over the years to the point where you just get a prompt response that says, "Sorry, but our architecture still doesn't support that, but here's a work-around."
They've been around long enough, and are expensive enough to make that response insufficient.
What's most disconcerting for Windows/Android users is that you're screwed... It used to be the only way to log time was to use a third-party desktop widget that's not compatible with Windows 8, or a funky, third-party Android app that usually didn't work.
They did release an iPhone app for the teenagers who outgrew their iPods, but nothing on the horizon for business owners.
This app really seems to have been orphaned.