But maybe Rankâs words still apply to contemporary art today, eight decades after he wrote them. Jeff Koons, Damien Hirst, and all the usual, contemporary art attention vampires never deal with religion, either positively or negatively.
Kinvey CIO survey: $270,000 average cost per app. 56 percent of mobile leaders surveyed say it takes from 7 months to more than one year to build one app. 18 percent say they spend from $500,000 to over $1,000,000 per app, with an average of $270,000 per app. Source: Kinvey Survey.
The average value of an in-app purchase is $5.94, while purchases between $1 and $5 represent a majority, or 67 percent of purchases. Items that cost more than $50 in a game account for 0.7 percent of all purchases and contribute 9 percent of total revenue.