The mySTOX app was designed while sitting in a WWDC session, anticipating the possibility of widgets being added to the springboard. While that didn’t happen, the concept itself lent itself to being a utility app for helping people visualize their portfolio’s performance in the stock market.

The concept started from the standpoint of self-interest, when it comes to the stock market. After all, AAPL gaining or losing $10 in a day might not mean $10 to you — if you had bought $20 below what it currently is, you’ll still be on top.

Here’s an example:

You bought AAPL at: $470

The current price : $480

However, let’s say the price yesterday was $500.

Most reporting media (for example, CNN Money) would be reporting AAPL was down with a 20 point loss.

We wanted something that would show how AAPL was doing based on our personal investment. So, with the above example, we would show that AAPL is still up 10 points (or in actuality, 10 points times the amount of shares that we owned at $470).

This app is specifically designed to gauge personal investment ups and downs in the market. The website mystox.mobi shows the different functions and how to use them (help within the app showing this information is also available by shaking the app).

The app is currently available in the Apple App Store: mystox