Works fine for STOCKS only
This app works very well for tracking multiple portfolios of STOCKS. But you cannot add items that do not have a Yahoo Finance stock symbol such as US Treasury bonds. You cannot even add an entry for just cash that real portfolios contain. It does support mutual funds since these do have a stock symbol.
Other improvements would include portfolio columns for % of Assets and Total Cost Basis rather than simply the price paid per share.
Its a helpful little app that does 80% of what I want for 20% of the cost of most others.
Severinson about iStockEX