iOptionVol (iOS) app for $0.99
iOptionVol is an exquisite tool to exhibit options volume in the US market with near real-time data. Financial sites only list options volume in plain tables; yet iOptionsVol graphs all the information and present them in a laconic and striking way. What's more, iOptionsVol includes a more complete set of symbols than most major financial sites. Simply enter stock symbols, and tap the arrows back and forth to view options volume per expiration date. Stock symbols entered are automatically stored in history to save typing next time.