Apple Search Ads (ASA) and Google App Campaigns (AC) are the two largest direct-to-app paid acquisition platforms. Both deliver installs at scale. Both have strong attribution. They are very different products.
Here's how to choose between them in 2026 — and when (and how) to run both.
The short answer
Apple Search Ads delivers high-intent users searching the Apple App Store and pays per install. It's mature, cost-effective for in-category demand, and the highest-intent paid channel available to iOS app marketers. Google App Campaigns runs across Google Search, Play Store, YouTube, Discover and the Google Display Network. It's broader, more algorithmic, and typically delivers higher install volume at lower-intent — making it ideal for both Android-first apps and iOS-first apps that need scale beyond what ASA can provide.
Most app teams should run both.
Apple Search Ads — the buyer-intent specialist
ASA only runs on Apple's surfaces — App Store search results, search tab, and product pages. Every install comes from a user who explicitly searched the App Store. That's the highest-intent paid signal in mobile.
Strengths:
- Highest-intent paid traffic in iOS.
- Predictable CPI (typically $1–$10 in most categories).
- Mature attribution; runs cleanly with AppsFlyer, Adjust and Branch.
- Account structure is simple: discovery → brand → category → competitor.
Limitations:
- iOS only.
- Volume capped by search demand.
- Effective optimisation requires daily-to-weekly active management.
Google App Campaigns — the algorithmic scale play
Google AC is largely automated — you provide creative assets, audience signals and a target CPI, and Google's algorithm spreads spend across Search, Play, YouTube, Discover and Display.
Strengths:
- Cross-platform (iOS and Android).
- Higher install volume per dollar in many categories.
- Strong creative-driven optimisation (algorithm adjusts spend toward best-performing creative).
- Plays well with Google's measurement stack.
Limitations:
- Less control over where ads run and what audiences see them.
- Attribution noisier than ASA (Google's modelled conversions need to be reconciled with MMP data).
- Creative production demands are higher — Google AC needs frequent fresh creative across image, video and HTML formats.
When each one wins
| Situation | Best channel | | --- | --- | | iOS-only app, in-category demand exists | Apple Search Ads | | Android-first or cross-platform, need scale | Google App Campaigns | | High-intent buyer-search behaviour | Apple Search Ads | | Discovery / awareness-driven category | Google App Campaigns | | Tight unit economics, need predictable CPI | Apple Search Ads | | Need install volume above what ASA can deliver | Google App Campaigns (layered on top of ASA) |
How to run them together
The strongest approach for most app teams:
- Start with Apple Search Ads — highest intent, lowest noise, fastest to results.
- Layer Google App Campaigns — typically 2–4 separate campaigns: cross-platform UAC for installs, Google Play campaigns specifically, and YouTube-only AC for creative-led brands.
- Set independent CPI targets per channel — don't apply ASA's CPI to AC and vice versa.
- Use a single MMP (AppsFlyer, Adjust, Singular) to dedupe and attribute properly across channels.
What's changed in 2026
- Apple has expanded ASA to additional countries and surfaces. The Search tab has become a meaningful inventory beyond just keyword-driven search results.
- Google AC has integrated more deeply with first-party SKAdNetwork data and has cleaner reporting on iOS than it did 18 months ago.
- Both platforms now reward creative volume — single-creative campaigns underperform multi-creative variant testing.
Bottom line
Apple Search Ads vs Google App Campaigns isn't an either/or. ASA is the highest-intent iOS channel and should be in every iOS app team's stack. Google App Campaigns is the volume play that scales across iOS and Android. Run them in parallel, measure them independently, and let unit economics dictate spend allocation.
If you'd like a review of your current ASA + AC setup, apply for a strategy call.