You app looks great! Reminds me of the vim solarized theme. One thing I've always wanted was an easy way to track common commodities like oil, gas, gold, and silver prices. This is often best done by tracking multiple ticker symbols. Having a simple way to track all of these would be a killer feature (i search oil and all the oil related tickers are combined into one handy visual). Cannot see anything wrong with your app. Nice work!
Thank you! That's a really good point. We'll be adding a Commodities watchlist in the near future!
Are there any particular tickers that you use? With oil, there's spot and futures. The ones on yahoo are mostly futures dated the next month. It would be more involved to have to keep updating it monthly as opposed to an index.
It would probably be more straightforward to use an index like
iPath S&P GSCI Crude Oil TR Index ETN (OIL)
We're thinking of an up-sell strategy. Our team has a lot of financial experience (ex-wall street), and there are many advanced products such as portfolio analytics, diversification metrics and risk ratios etc. that we could sell.
A basic stocks app is our way of reaching our target audience.
To be honest though, this is more a guess that anything else. Hopefully we won't have to do banner ads without the app. Those are really ugly.