Report: global app downloads topped 175B in 2017, consumer spending surpassed $86B, and time spent in apps per user rose to ~43 days per year
App Annie :
Context & Ripple Effects
This is the baseline installment of what became an annual ritual: App Annie's full-year app economy tally. The 2017 numbers — 175B downloads, $86B in spending, ~43 days per user spent in apps — set the reference point for every subsequent report in the coverage.
The arc since then has been steep: spending reached $120B in 2019, grew another ~20% through the pandemic year to $143B, and hit $170B across 230B downloads in 2021 — meaning consumer spend roughly doubled in the four years after this report.
First-order effects
- Developers and publishers enter 2018 with a measurably larger addressable market — $86B of annual consumer spend and rising per-user engagement give both indie studios and large publishers harder numbers to justify investment against.
- Advertisers and brands get quantified proof that apps, not just mobile web, are where attention concentrates, sharpening budget decisions between app-based and other digital channels.
Second-order effects
- Apple and Google's store commissions scale directly with the spending curve App Annie documents, making take-rate policy on an $86B-and-growing base a higher-stakes question for both platforms and the developers pushing back on it.
- Investors gain a third-party benchmark for valuing app-driven businesses, feeding capital toward subscription and in-app purchase models that convert engagement time into recurring revenue.
Third-order effects
- If the pattern in the coverage holds — each annual report showing double-digit spending growth on top of the last — the app economy structurally becomes a primary consumer commerce and media surface, with time-in-apps metrics eventually rivaling traditional measures like TV viewing.
- Sustained growth concentrated through two storefronts entrenches the duopoly's gatekeeper position, raising the long-term odds of regulatory scrutiny over distribution and payment terms.
The trend: App Annie's annual tallies chart an app economy compounding at double-digit rates, turning yearly download and spending benchmarks into the standard gauge of mobile's takeover of consumer time and money.