Adobe Analytics: the time smartphone users spend on websites per visit has decreased by 10% since 2015; the amount of money spent per visit has increased by 27%
Context & Ripple Effects
Adobe Analytics' finding lands two years after comScore measured smartphone apps crossing half of US online time, up from 41% in mid-2014 — the apps-over-web shift was already draining engagement from mobile browsers. Mary Meeker's 2017 report added the money side of that squeeze: internet growth is slowing and Google plus Facebook capture 85% of growth in online ads.
What Adobe adds is the twist: the mobile web isn't dying, it's specializing. Visits got 10% shorter since 2015 but 27% more valuable per visit, and Adobe's own holiday numbers show why retailers care — Black Friday online sales of $6.2B with 33% from mobile, and Cyber Monday forecast at $7.8B.
First-order effects
- Retailers get fewer but richer mobile web sessions, so checkout speed and conversion matter more than dwell time — while publishers selling mobile web ads face shrinking engagement per visit exactly as Google and Facebook absorb most new ad dollars.
Second-order effects
- Ad budgets follow the engagement into apps and walled gardens, reinforcing the duopoly Meeker documented and pressuring independent sites to chase high-intent traffic rather than raw pageviews.
- Analytics vendors like Adobe reposition their pitch around revenue per visit instead of session length, changing which metrics brands optimize against.
Third-order effects
- If the split holds — apps owning engagement, the mobile web handling transactions — the open web risks becoming a checkout lane that feeds platform ecosystems, with revenue-per-device displacing time-on-site as the core mobile metric.
- The pattern proved durable: by late 2020 Adobe reported mobile driving 40% of Black Friday online sales, up from 33% in this dataset.
The trend: Mobile attention is consolidating inside apps while the mobile web narrows into a high-intent transaction channel, decoupling what users spend from how long they stay.