Update: As we were finalizing this post, Apple did in fact remove Been Choice from the App Store, citing privacy concerns. Whether it comes back in an altered form or not, Tom's advice is worth keeping mind before you do anything drastic. -- Ed.

This month’s Fiksu Index showed app marketing costs hit an all-time high.  Following the launches of the iPhone 6 and 6 Plus and Apple iOS 8 release, the cost for marketers to acquire loyal users (CPLU) reached $2.25. CPLU increased 21 percent from August, and 34 percent since September 2013. Taking a peek at the increasing costs to acquire loyal users over a two-year time period (2012-2014), we see an upward sloping trend line – demonstrating that marketers continue to face an environment of increasing costs and competitive forces.

August was a ‘lazy’ month for vacationers, app users, and for app marketers, demonstrated by lowered app install activity on both iOS and Android and lower marketing spends. The Cost Per Loyal User (CPLU) Index, which measures the cost of acquiring a loyal user for brands who actively market their apps, came in at $1.86, representing a 6 percent decrease from last month’s index.

After weeks of breathless conjecture -- will they introduce a new iPhone? (no!) or home automation? (yes!) -- Apple used yesterday's WWDC keynote to unveil a slew of changes and updates to OS X, iOS, and the App Store, but no new hardware. Instead, the focus of the event was squarely on developers. Yes, new features like improvements to iMessage, family sharing, and OS X to iOS AirDrop are nice updates for consumers.

March was the month of market maturity for our Indexes, as app developers continue to improve the quality of offerings, advertisers adopt more powerful programmatic and optimization techniques, and device usage continues to skyrocket.

In rapidly evolving industries, uncertainty can be a killer -- so the introduction of the Advertising Identifier (IDFA) with iOS 6 was a welcome relief. The app marketing industry needed a privacy-respecting, industry-standard way to attribute ad performance, and the IDFA seemed like an ideal answer to an unsettled situation. 

Apple's new iPad Air went on sale on Friday 11/1, and according to our tracker, it's having a remarkable opening weekend. As of this writing, the Air is now making up 0.69% of active iOS tablets using apps in our network. While that's objectively a pretty small share, it stands out when compared to recent iPad launches. After the opening weekend a year ago, the iPad 4 had just 0.14% of activity, and the iPad mini had 0.21%.

As we've discussed, the upcoming introduction of two new iPhones is likely to create a significant opportunity for app marketers as users load up their new phones with apps. On the heels of today's formal introduction of the iPhone 5S, 5C, and announcement of iOS 7's release date of 9/18, here are a few thoughts for app marketers.

The months and weeks of speculations are almost over as we count down the days to the much-anticipated Apple event on Tuesday at which the iPhone 5S, iOS7, and potentially a low-cost iPhone 5C will be publicly unveiled.

  • Apple reported record revenue numbers this week, along with record iPhone and iPad sales.
  • As if the App Store isn’t packed enough, 2013 will bring an estimated 435,000 new apps to iOS users – further aggravating discovery challenges for app marketers.
  • Across iOS, Android, and RIM, Facebook is the No. 1 app in the U.S., with nearly 86 million unique visitors per month.