iOS passes Mac OS in Share of Web Traffic Propelled by Record Sales for Mobile and Tablet Devices
Apple sold a historic number of mobile devices in 2011. IDC reports that in 2011, Apple shipped 93.2 iPhone units and sold an impressive 40 million+ iPad units.
Context & Ripple Effects
This crossover closes an arc the corpus has been tracking since at least January 2008, when a survey put Mac OS at a then-record 7.3% web-traffic share. Four years later, the device that overtook the Mac is not another desktop OS but Apple's own mobile stack — the same company on both sides of the line.
The mechanics were visible in advance: by October 2011 Chitika already measured the iPad alone at 97% of tablet web traffic, eclipsing the iPhone within iOS, and back in September 2010 asymco counted the iPod touch at 37.7% of all iOS devices sold — a long tail of touch devices quietly accumulating browsing hours. IDC's 2011 figures (93.2M iPhones shipped, 40M+ iPads sold) supplied the volume that pushed aggregate iOS past Mac OS. The story traveled unusually wide for a measurement note, with pickups at BGR, ReadWriteWeb, Marketing Land and four other outlets on or about February 10, 2012.
First-order effects
- Publishers and ad buyers tracking Chitika-style network data now face an Apple ecosystem where the mobile OS out-delivers the desktop OS, making iOS-specific ad targeting and responsive design a budget line rather than an experiment.
- Apple's own product narrative shifts: the Mac becomes the smaller of its two web-facing platforms, which raises the stakes for how it positions MacBook lines like the education-focused five-pack programs announced the same week.
Second-order effects
- Developers weighing Mac versus iOS effort get a usage-based argument for prioritizing iOS first, pressuring Mac software vendors to treat their desktop products as companions to iPhone/iPad versions.
- Rival platforms are measured against a new baseline: with Android chasing the same installed-base curve, ad networks' per-platform pricing will start reflecting mobile-first traffic mixes rather than desktop shares.
Third-order effects
- If the pattern holds, web standards and browser behavior consolidate around two mobile vendors — a concern already voiced publicly by a W3C co-chair, who argued Apple and Google's mobile browser dominance is worse for web programming than Internet Explorer's former monopoly.
- The 'PC market' framing gives way to an installed-base-of-devices framing, where a vendor's weight online is set by cumulative mobile hardware sales rather than quarterly computer shipments.
The trend: Web access is crossing over from desktop operating systems to mobile ones, with each vendor's cumulative smartphone and tablet install base — not PC shipments — becoming the measure of its online footprint.