A recent Flurry Blog post details the final app sales figures from the 2012 holiday season, citing a record 604 million apps sold in the U.S during the holiday week. For app developers, the biggest sales week of the year extends from Christmas Day to New Year’s Day every year, with this year topping previous sales numbers. The data reported by Flurry’s Peter Farago include both iOS and Android app sales. The report also estimates a record 17.4 million iOS and Android devices were activated during this time as well. That’s a 65% increase in downloads during the holidays when compared to average sales the rest of the year.