A common question from app advertisers: does AI Max replace Universal App Campaigns (UAC), now called App campaigns? The short answer is no — they serve different purposes and target different inventory. Here's how to think about the boundary.
AI Max vs App Campaigns: Core Difference
App campaigns (formerly UAC) are Google's dedicated format for driving app installs and in-app conversions. They run across Google Search, Google Play, YouTube, Display Network, and Discover, using assets you provide (text, images, videos, HTML5) to serve app-specific ad formats.
AI Max for Search and AI Max for Shopping are not designed for app install campaigns. They're designed for web-based conversion actions on websites. An AI Max for Search campaign serves text ads in Google Search; an AI Max for Shopping campaign serves product listing ads. Neither can drive app installs directly.
Where the Overlap Exists
There's a limited overlap: AI Max for Search can appear when users search for your app's category or functions, and if you direct them to a web landing page that has an app download button, they could install your app. But this is not the same as an App campaign that takes users directly to the Google Play or App Store listing.
The AI Max workflow for this indirect path:
- User searches "task management app for teams"
- AI Max for Search shows your ad
- User clicks to your website
- Website has a smart app banner or download CTA
- User downloads app
This is a possible conversion path, but it's far less efficient than App campaigns, which take the user directly to an install flow.
When to Use Both Together
Mobile-first businesses often use both campaign types for different purposes:
App campaigns: Drive app installs and in-app conversion actions (purchases, registrations, level completions, etc.) — this is the core install channel
AI Max for Search: Drive web-based conversions (lead forms, web purchases, email signups) from users who haven't yet discovered your app or who convert on web before migrating to mobile
AI Max for Shopping: Drive product sales through web checkout — app users might discover your product via Shopping ads before downloading the app
The key is separate measurement: keep App campaign installs tracked via Firebase and Google Analytics for Firebase; keep AI Max web conversions tracked via Google Tag.
The July 2026 ToS and App Campaigns
The July 2026 ToS (https://yositeup.com/blog/google-ads-tos-july-2026-ai-automation-what-changed) updates applied to both AI Max and App campaigns, but the provisions are separate:
- AI Max provisions govern Search and Shopping automation
- App campaign provisions (a different section) govern app advertising automation, App Open Bidding, and in-app conversion tracking requirements
Don't conflate the two — if you're reviewing ToS compliance for an App campaign, look at the App campaign-specific provisions, not just the AI Max provisions.
June 2026 Data Deletion and App Campaign Data
The June 2026 data deletion (https://yositeup.com/blog/google-ads-reporting-data-deleted-june-2026) affected reporting data across campaign types, including App campaigns. In-app conversion data reported in Google Ads for the deleted period is gone from reporting — though Firebase-side data should be unaffected (the deletion was to Google Ads reporting infrastructure, not Firebase).
If you're comparing AI Max web performance vs App campaign performance for the deleted period: both have the same reporting gap. Use Firebase data for App campaign actuals and your analytics platform for AI Max web actuals to reconstruct the deleted period.
AI Max for Search as an App Discovery Layer
One valid use of AI Max for Search in an app growth context is upper-funnel discovery:
- DSA (now replaced by AI Max for Search — see https://yositeup.com/blog/google-ads-dsa-ai-max-migration-february-2027) was used by some app companies to drive traffic to web content about their app's use cases
- AI Max for Search's query expansion finds users matching the problem your app solves
- These users land on your website, discover the app, and may install it
This "content SEO + paid search + app install" funnel is distinct from App campaigns but can be a meaningful acquisition layer for apps in categories where users research before downloading (productivity, B2B tools, health apps).
AI Max for Shopping and Physical Products With Apps
For brands that sell physical products via both a website and an app:
- AI Max for Shopping (https://yositeup.com/blog/google-ai-max-shopping-replacing-performance-max-2026) drives product sales via web checkout
- App campaigns drive in-app purchases for the same products via your shopping app
These are complementary, not competing. Attribution for "did the user discover via AI Max Shopping and purchase in-app?" requires cross-device and cross-platform measurement — check your Google Analytics 4 user properties to connect web and app behavior.
The practical recommendation: don't try to use AI Max for app installs. Use App campaigns for installs. Use AI Max for Search and Shopping for web-side conversions. Measure both separately and evaluate total business impact holistically.
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