Note: The iPhone Economy does not have in-app-purchases anymore.
This page has been archived for historical purposes.
The two in-app-purchase features on this page were introduced with the V2 release of the iPhone Economy app in December 2009.
The V3 release of the app (in March 2010) made these two features part of the base app.
With the elimination of in-app purchases, the price of the base app was raised from $0.99 to $1.99
Everything below this line is obsolete content from 2009.
The base Economy app offers far more value than the ($0.99) base price of the app, but ultimately, it is bound by the laws of Economics and $0.99 is not a sustainable price for a high-quality big app like the Economy app.
So the app uses in-app-purchase for premium features.
These features can only be purchased from inside the iPhone Economy app. The app can be downloaded from iTunes
1. Economy - State Data ($0.99)
This feature gives you the following five state-specific economic indicators for each one of the 50 US states and D.C. (So the feature gives you 255 indicators)
1. Unemployment Rate (Monthly)
2. Per Capita Personal income (Annual)
3. Health insurance coverage rate (Annual)
4. Single-Family Housing starts (Monthly)
5. Gross Domestic Product (Annual)
The numbers are updated/refreshed at the frequencies listed above";
State-specific graphs are similar to those displayed for the national indicators. Economic indicators can be tracked across the past few months, years or decades. They can be tracked across national recessions and across Democratic and Republican presidencies (but not across Democratic and Republican governors).
In technical/business terms, this is a "non-consumable" feature. So if a user has already purchased this feature (for example, if they had purchased it on a different device), they can download the feature for free on another device associated with their account.
2. Economy - Data Value Transformations ($1.99)
This feature provides data value transformations for economic indicator values.
Most users wouldn't need this feature, however, users who want to see graphs based on interesting Y-axis transformations may be interested in this feature.
The feature gives users the choice of charting the Y-axis of graphs by any of the eight data-value transformations listed below.
1. Change from previous report
2. Change from previous year
3. Percent Change from previous report
4. Percent Change from previous year
5. Compounded Annual Rate of Change
6. Continuously Compounded Rate of Change
7. Continuously Compounded Annual Rate of Change
8. Natural Log
As an example of the graph charting, consider the hypothetical case where the housing-starts value increases from 300K in February to 400K in March and then increases to 450K in April.
For March, the 'change from previous report' value is 100K and for April, the 'change from previous report' is 50K.
When charted by the 'change from previous report', the graph line from March to April will trend downward from a value of 100K (in March) to a value of 50K (in April), even though the 'absolute value' for housing-starts has increased from 400K (in March) to 450K (in April)
In technical/business terms, this is a "non-consumable" feature. So if a user has already purchased this feature (for example, if they had purchased it on a different device), they can download the feature for free on another device associated with their account.