I tried wikinvest, but it really just for brokerage accounts. I'm big into real estate. Currently, nothing fits my use case better than mint and mint is not ideal (e.g. can't do cashflow).

Also, I want a single place to see my networth as it's a huge factor in understanding my progression towards retirement. Having multiple interfaces makes this difficult.

Good ol' Yodlee MoneyCenter is pretty decent at tracking net worth. https://moneycenter.yodlee.com.

I don't log in much nowadays, but I remember it is pretty easy to add asset values and get them figured into net worth. You have to keep manually-input stuff updated, of course.

Several of the companies that offer bank feeds ("add your account") use Yodlee's data.

I too have not found a solution for this, so I use a good old fashion spreadsheet. That said, I really wish something existed that did not require a monthly update on my part.