What creative assets do you need for Google App Campaigns? (2026)

21 min read | Updated April 2026

Google App Campaigns (formerly UAC) assemble your ads automatically from raw creative assets. You supply text, images, videos, and HTML5 playables. Google’s machine learning mixes, matches, and serves them across Search, Play, YouTube, Display, and Discover. The quality and variety of creative assets determine whether your campaigns scale or stall, often driving 3-4x more performance variance than audience targeting or bid strategy combined.

What creative assets does Google App Campaigns require?

Google App Campaigns accept up to 5 text headlines, 5 descriptions, 20 images, 20 videos, and HTML5 playable assets. The algorithm combines these into thousands of ad permutations across Google's full inventory.

Key insight: Maxing out every asset slot gives Google's algorithm more combinations to test, which directly improves campaign learning speed.

• 5 text headlines (max 30 characters each)
• 5 text descriptions (max 90 characters each)
• Up to 20 images across required sizes
• Up to 20 videos (portrait, landscape, square)
• HTML5 playable assets (optional but powerful)

According to Google's official App campaign documentation, each ad group supports these maximums. Most advertisers underutilize slots: common patterns show only 2-3 videos and 5-10 images uploaded per ad group.

This matters because Google's system generates ad variations by mixing assets. With 5 headlines × 5 descriptions × 20 images alone, you get 500 static combinations. Add video and the permutations explode.

The algorithm needs volume to exit the learning phase. Per our complete Google App Campaigns guide, campaigns with fewer than 10 total creative assets take significantly longer to optimize, often burning budget during extended learning periods. Google App Campaigns account for 45% of all Android non-organic installs globally, making asset optimization critical at scale.

What happens if you don't upload videos?

Google auto-generates video ads from your Play Store listing assets. According to Google Ads Help, these auto-generated videos use your app icon, screenshots, and store description text.

The quality is consistently poor. Auto-generated creatives lack narrative structure, emotional hooks, and any semblance of brand voice. They exist as a fallback, not a strategy. Always upload custom videos to prevent Google from filling YouTube inventory with low-quality automated content.

What are the exact specs for Google App Campaign text assets?

Headlines allow 30 characters max and descriptions allow 90 characters max. You get 5 slots for each. These text assets appear across Search, Play Store, and Display network placements.

Key insight: Write each headline and description to stand alone, because Google pairs them unpredictably.

• Headlines: 30 characters, no emojis allowed
• Descriptions: 90 characters, no emojis
• Each text asset must work independently
• Avoid repeating value props across assets
• Include at least one CTA-driven description

The critical constraint most marketers miss: any headline can be combined with any description. If headline #3 says "Free for 7 Days" and description #2 says "Start your free trial today," you've created a redundant, wasted combination.

According to Google's asset requirements, text may appear with or without other assets. A headline might show alone on Search. A description might pair with an image on Display. Plan accordingly.

The best approach: write each text asset to communicate a distinct value proposition. Use the RocketShip HQ 3C Principle: every headline needs Context (who is this for), Clarity (what does the app do), and Curiosity (why tap now).

At 30 characters, you cannot hit all three, so prioritize Curiosity for headlines and Clarity for descriptions.

How should text assets differ from each other?

Think of your five headlines as five different angles of attack. One might lead with social proof ("4.8★ Rated by 2M Users"). Another addresses a pain point ("Finally, Budgeting That Works"). A third creates urgency ("This Week: Premium Free").

Redundancy is the biggest mistake. If Google combines two similar headlines with a similar description, you’ve wasted an impression. According to how Google App Campaign targeting works, the algorithm needs distinct signals to learn which angles resonate with which audience segments—and requires ~100 conversions per ad group within 7 days to complete the learning phase.

What image specs and sizes do Google App Campaigns need?

Google requires images in three aspect ratios: 1200×628 (1.91:1 landscape), 1200×1200 (1:1 square), and 480×800 (portrait, optional). File size must stay under 5MB. You can upload up to 20 images per ad group.

Key insight: Landscape 1.91:1 images get the most Display inventory, but square 1:1 images increasingly dominate Discover and mobile placements.

• 1200×628px landscape is the primary format
• 1200×1200px square for Discover and mobile
• 480×800px portrait for full-screen placements
• Max 5MB, PNG or JPG
• Minimize text overlay on images

According to Google's image asset specifications, the minimum accepted resolution is 320×50 for certain banner placements, but Google strongly recommends uploading the highest resolution versions. The system downscales automatically.

Critically, images cannot contain excessive text. Google follows a guideline similar to Meta's former 20% text rule. Images with large text overlays see reduced delivery. The safe approach: keep text to a short headline or none at all, and let the accompanying text assets handle messaging.

For before-and-after style creatives, the split-frame format works exceptionally well in the 1.91:1 landscape ratio. The eye naturally moves left to right, making transformation arcs intuitive.

How many image variants should you upload?

Upload the full 20. But do it strategically. According to the Adjust State of App Growth report, creative diversity is the top lever for scaling campaigns in 2025-2026.

A strong image set includes: 5-6 product/UI screenshots, 3-4 lifestyle images showing real usage, 3-4 benefit-driven graphics, and 2-3 social proof or rating callouts. Each image should communicate a different reason to install. Avoid uploading 20 minor variations of the same visual concept.

What video specs does Google App Campaigns support?

Google App Campaigns support videos in landscape (16:9), portrait (9:16 or 2:3), and square (1:1) orientations. Recommended length is 10-30 seconds. Videos must be uploaded to YouTube and linked, not uploaded directly.

Key insight: Portrait 9:16 videos are no longer optional. According to Google, vertical video now captures the majority of YouTube Shorts and in-app inventory.

• Upload all three orientations: 16:9, 9:16, 1:1
• 10-30 seconds is the optimal length range
• Videos must be hosted on YouTube
• 1080p minimum recommended resolution
• Hook must land within the first 3 seconds

Per Google's video asset specifications, minimum resolution is 480p but 1080p is strongly recommended. There is no file size limit since videos live on YouTube, but keep them under 150MB for smoother processing.

The 10-30 second sweet spot is not arbitrary. According to AppsFlyer's State of App Marketing data, video completion rates on mobile drop sharply after 30 seconds, and Google's algorithm penalizes low completion rates by reducing delivery.

A common mistake: uploading only one orientation. Google needs all three to access full inventory. A landscape-only campaign misses YouTube Shorts entirely. A portrait-only campaign loses Display and in-stream placements.

What makes a high-performing Google App Campaign video?

The first 3 seconds decide everything. As discussed on the Mobile User Acquisition Show with Tactile Games' CMO, users scroll past ads in under 30 seconds, making emotional resonance in the opening hook non-negotiable.

Apply the 3C Principle from RocketShip HQ: the opening frame must establish Context (“Tired of budgeting apps that don’t stick?”), deliver Clarity (show the app interface), and spark Curiosity (“Here’s what changed for 2M users”). Missing any one C means the viewer swipes. Strong video ads for mobile apps pair 0.3-0.8 second zoom with text overlay, outperforming static intros by 40-60%, and focus on results over features by a 3:1 margin.

For gaming apps specifically, fail ads remain one of the highest-performing formats. The "almost succeeded" mechanic creates an itch that drives installs. For non-gaming, product demo videos with a transformation arc consistently outperform lifestyle-only content.

How does Google mix and match creative assets in App Campaigns?

Google's machine learning tests thousands of asset combinations automatically. It pairs any headline with any description and any visual (image or video) to form a complete ad. Per Google's documentation, the system optimizes toward your campaign goal: installs, in-app actions, or ROAS.

Need help scaling your mobile app growth? Talk to RocketShip HQ about how we apply these strategies for apps spending $50K+/month on UA.

Key insight: You don't control which assets pair together, so every individual asset must work in isolation and in any combination.

• Any headline can pair with any description
• Images and videos compete for the same slots
• Asset ratings update after sufficient impressions
• Separate themes into distinct ad groups
• Replace "Low" rated assets every 2-3 weeks

This is fundamentally different from Meta or TikTok, where you build complete ad units. In Google App Campaigns, you hand over raw ingredients and the algorithm is the chef. The system evaluates performance at the asset level and the combination level simultaneously.

Google rates each asset as "Low," "Good," or "Best" in the asset report. According to Google's asset reporting guide, these ratings reflect relative performance within your ad group, not absolute quality.

The practical implication: asset stuffing, where you dump all creatives into one ad group without thematic separation, prevents the algorithm from segmenting audiences properly. Instead, create separate ad groups for distinct creative themes (e.g., one ad group focused on social proof, another on product demos).

This gives the algorithm cleaner signals about which themes resonate with which user segments.

How often should you refresh creative assets?

Replace underperforming assets every 2-3 weeks. According to the AppsFlyer Performance Index, creative fatigue is the primary driver of CPI inflation on major networks, including Google. Structured creative testing frameworks using systematic rotation and measurement can reduce CPA by 15-25% compared to ad-hoc single-asset testing.

Don't replace everything at once. Swap 2-3 assets per cycle to avoid resetting the algorithm's learning. Monitor the asset report: any asset stuck at "Low" after 2,000+ impressions is a reliable signal to replace. Assets rated "Best" should be left alone, and used as templates for new variants.

What are best practices for Google App Campaign image assets?

The highest-performing images communicate a single, clear message without relying on text overlay. According to Google's creative best practices, images with minimal text and strong visual contrast outperform cluttered designs by 2-3x on click-through rate.

Key insight: Each image should pass the 'glance test': a user must understand the value proposition in under 1 second.

• One message per image, no multi-point graphics
• High color contrast against typical web backgrounds
• Show the app in use, not just the icon
• Avoid stock photography that feels generic
• Test UI screenshots vs. lifestyle imagery

Start with your app's core use case rendered visually. A fitness app should show a workout in progress, not a static logo. A finance app should show a dashboard with impressive numbers, not a generic stock photo of coins.

Color contrast matters enormously on the Display Network, where your image competes with website content. Per Google's own creative guidance, images with a saturated background and clean foreground subject earn higher engagement. Avoid white or light gray backgrounds, as they blend into most web pages.

For apps in competitive categories, consider the Constraint-as-Benefit principle from RocketShip HQ's analysis of top-performing ads. If your app is intentionally simple, show that simplicity as a feature. 45%+ of top-performing mobile ads reframe a perceived limitation (fewer features, no social feed, minimal UI) as the primary selling point.

What are best practices for Google App Campaign video assets?

Lead with a strong hook in the first 2-3 seconds, demonstrate the core experience by second 10, and close with a clear CTA. According to data cited on the Mobile User Acquisition Show with Solsten's co-founder, psychology-driven creative changes can improve IPM from 0.97 to 2.4.

Key insight: The first 3 seconds of your video determine 80% of its performance. Invest disproportionate effort there.

• Hook in first 2-3 seconds or lose the viewer
• Show actual app/game experience, not just lifestyle
• Add captions for sound-off viewing
• Shoot natively for each orientation (no letterboxing)
• End with clear CTA and app store badge

Structure your videos using a 3-act framework within 15-30 seconds: Hook (0-3s), Demo (3-15s), CTA (15-20s). The hook must create an open loop or address a pain point directly. "Are you still using a spreadsheet to track expenses?" beats "Introducing BudgetApp 3.0" every time.

For gaming verticals, gameplay-first video outperforms cinematic trailers. Show the actual game experience, not a pre-rendered cutscene. For subscription apps, lead with the outcome the user wants, then briefly show the app facilitating it.

Audio design matters even though most mobile impressions start muted. Add captions or on-screen text that mirrors the voiceover. According to best practices for audio app advertising, videos optimized with both sound-on and sound-off viewing in mind see significantly better completion rates.

A critical mistake to avoid: creating one “hero” video and uploading it in all three orientations by adding letterboxing. A letterboxed landscape video in a portrait YouTube Shorts slot wastes 44% of the screen. Shoot natively or edit specifically for each orientation—choosing the right aspect ratio can reduce cost per trial by 38% or more, as 9:16 creatives consistently deliver 22-31% lower CPI on vertical-first placements.

How many video concepts should you test simultaneously?

Upload 6-10 distinct video concepts across all three orientations, totaling 18-30 individual video files. This fills most of the 20-slot limit while ensuring thematic variety.

Avoid what the Mobile User Acquisition Show calls the “local maxima” trap: only iterating on your top-performing video concept. This leads to incremental gains but misses breakthrough angles. Dedicate 30% of video slots to genuinely new concepts and 70% to iterations on proven winners. Writing effective creative briefs that explore multiple angles systematically can produce 10x more effective creatives by ensuring diversity in your testing pipeline.

How do HTML5 playable assets work in Google App Campaigns?

HTML5 playables are interactive mini-experiences that let users try a simplified version of your app before installing. According to Google's playable ad specs, the file must be a single HTML file under 5MB with all assets embedded inline.

Key insight: Playables typically deliver 2-3x higher conversion rates than static ads because users self-qualify through interaction.

• Single HTML file, max 5MB, all assets inline
• Must include mraid.js for SDK compatibility
• 15-30 second interactive experience is ideal
• Visible install CTA required throughout
• Highest impact for gaming and interactive apps

Playables are most impactful for gaming apps, where a 15-30 second gameplay snippet gives users a genuine taste. But non-gaming apps are increasingly adopting them: a language app might let users complete one vocabulary exercise, or a photo editor might let them apply one filter.

Technical requirements are strict. The HTML file must be self-contained (no external calls), must include the <code>mraid.js</code> API for ad SDK compatibility, and must render correctly across screen sizes. Google requires a visible "Install" CTA throughout the experience.

The production cost for playables is higher than static or video assets, often $2,000-$5,000 per unit according to industry production benchmarks cited in the best paid channels for mobile UA guide.

But the ROI justifies it for apps spending above $50K/month on Google, because the conversion rate uplift reduces effective CPI significantly.

How should you structure ad groups for different creative themes?

Create 2-4 ad groups per campaign, each organized around a distinct creative theme or audience angle. This prevents asset stuffing, which according to analysis on the Mobile User Acquisition Show, degrades algorithmic efficiency by mixing signals.

Key insight: Thematic ad groups let the algorithm match creative angles to audience segments instead of guessing randomly.

• 2-4 ad groups per campaign, each with one theme
• Every asset in an ad group should share a narrative
• Don't mix social proof with product demo assets
• Monitor ad group performance independently
• Pause underperforming ad groups, don't just swap assets

Think of each ad group as a self-contained narrative. Ad Group 1 might focus on social proof: headlines mention ratings and user counts, images show testimonials, videos feature user stories. Ad Group 2 might focus on product features: headlines highlight specific capabilities, images show the UI, videos demonstrate workflows.

This structure gives Google cleaner data. When a social-proof themed ad group performs well with a particular audience segment, the algorithm can confidently scale spend there. When everything is mixed into one ad group, the algorithm cannot isolate which theme drove the result.

Per the social networking app advertising guide, this thematic separation is especially important for apps with multiple use cases. A social app might have one ad group targeting content creators ("Grow your audience") and another targeting consumers ("Discover trending content").

What themes work best for ad group separation?

The most effective splits depend on your app category, but common high-performing structures include: Social Proof vs. Product Demo vs. Outcome/Transformation vs. Urgency/Promotion.

For subscription apps specifically, the Credibility Paradox from RocketShip HQ's analysis is useful: risk reversal messaging ("Free for 7 days, cancel anytime") outperforms testimonials for cold traffic. Reserve your testimonial-heavy ad group for remarketing or engaged audiences, and lead with free trial messaging in your primary acquisition ad group.

How do you measure which creative assets are working?

Use Google's built-in Asset Report, which rates each asset as "Learning," "Low," "Good," or "Best." According to Google Ads Help, ratings become meaningful after an asset accumulates sufficient impressions, typically 2,000-5,000.

Key insight: Google's asset ratings are relative within your ad group, not absolute quality scores. A 'Best' asset in a weak ad group may still underperform.

• Check Asset Report weekly for rating changes
• Replace 'Low' assets after 2,000+ impressions
• Use MMP data for post-install quality signals
• Compare ad-group-level ROAS, not just install volume
• Introduce net-new concepts monthly

The Asset Report is your primary tool, but it has limitations. It does not tell you why an asset performs well, and it does not show you which specific combinations (headline + image + description) drove results. You see asset-level performance in isolation.

To go deeper, use third-party MMPs like AppsFlyer or Adjust to track post-install events tied to your campaign. While you cannot attribute to individual asset combinations, you can compare ad-group-level ROAS and retention, which tells you which creative theme drives the highest quality users.

Refresh cadence should follow a simple rule: check the Asset Report weekly, replace "Low" assets bi-weekly, and introduce entirely new concepts monthly. According to the AppsFlyer eCommerce app marketing report, top-performing ecommerce apps refresh 30-40% of their creative assets monthly to combat fatigue.

What's the ideal creative production workflow for Google App Campaigns?

The most efficient workflow produces 30-50 assets per month organized in batches by theme, then distributes them across ad groups on a 2-week rotation cycle. This balances creative freshness with algorithmic learning time.

Key insight: Batch production by theme, not by format, ensures every asset in an ad group shares a coherent narrative.

• Batch by theme, not by asset format
• 3-4 themes per month is a strong cadence
• Frame video for center-crop to all orientations
• Match production volume to test budget capacity
• AI tools accelerate production but increase test costs

Start by identifying 3-4 creative angles you want to test that month. For each angle, produce: 2-3 headlines, 2-3 descriptions, 4-5 images (across required sizes), and 2-3 videos (in all three orientations). This gives you a complete, coherent ad group per angle.

The biggest efficiency gain comes from shooting video with all three orientations in mind from the start. Frame your subject in the center third of a landscape shot, and you can crop to portrait and square without reshooting.

This technique alone cuts video production costs by roughly 40% according to common production benchmarks.

A caution from the Mobile User Acquisition Show's coverage of AI creative pitfalls: if you use AI tools to accelerate production, remember that more creative output requires proportionally larger test budgets. Producing 100 AI-generated variants is pointless if your budget only supports testing 20.

How do Google App Campaign creative requirements differ from Meta or TikTok?

The fundamental difference: Google assembles ads from individual assets, while Meta and TikTok require you to build complete ad units. This means Google demands more individual assets but gives you less control over the final ad experience. For optimal creatives per Meta ad set per manual ad set or 10-20 for Advantage+ campaigns, while Google App Campaigns thrive on maxing out all 20 image and 20 video slots.

Key insight: Creative strategy for Google must be modular. Every asset is a building block, not a finished product.

• Google: modular assets, algorithm assembles ads
• Meta: complete ad units you fully control
• TikTok: finished videos, minimal text overlay
• Google needs more assets but offers less creative control
• Compliance risk increases with modular assembly

On Meta, you upload a complete video with headline, primary text, and description as a unified ad. On TikTok, you upload a finished video. On Google App Campaigns, you upload raw components and surrender assembly to the algorithm.

This has profound implications for creative strategy. On Meta, you can craft a narrative that flows from headline through video to CTA. On Google, your headline might appear without your video, or your image might show with a different headline than intended.

According to the ad compliance guide for fintech apps, this modularity creates unique compliance challenges too. If one headline makes a performance claim and one image shows returns data, Google might combine them in a way that violates financial advertising regulations, even if neither asset is problematic alone.

Google App Campaigns reward volume, variety, and modularity. Fill every asset slot, organize by theme, and refresh constantly. The algorithm does the assembly, but the quality of your raw materials determines the ceiling.

Start with the full asset matrix above, ship your first thematic ad groups, and use the Asset Report to iterate every two weeks.

Frequently Asked Questions

Can I use the same creative assets for Google App Campaigns and Meta ads?

You can repurpose video and image files, but you must rethink text assets. Google's 30-character headline limit is much shorter than Meta's 40-character headline and 125-character primary text. Resize and rewrite, don't just copy-paste.

What happens during Google App Campaign's learning phase?

According to Google's documentation, the learning phase typically lasts 2-3 weeks or until the campaign accumulates approximately 100 conversions. CPIs are often 20-30% higher during this period per common industry observations.

Should I upload assets to the campaign level or ad group level?

Always at the ad group level. Campaign-level assets exist but cannot be organized thematically. Per Google Ads documentation, ad-group-level assets give you control over which assets can combine, which is essential for thematic separation.

Do Google App Campaign creatives need to comply with specific ad policies?

Yes. Google enforces policies on misleading claims, inappropriate content, and category-specific rules (gambling, health, finance). According to Google Ads Policy, violations can result in asset rejection or account suspension. Review all assets against policies before upload.

What's the minimum number of assets needed to launch a Google App Campaign?

Google requires at least 2 headlines, 1 description, and 1 image to launch. However, launching at minimums cripples optimization. According to Google's own best practices, campaigns with all asset slots filled see significantly more efficient delivery.

Can I use AI-generated images and videos in Google App Campaigns?

Yes, Google accepts AI-generated assets as long as they comply with ad policies. Per the AI creative pitfalls analysis, the risk is not platform rejection but creative mediocrity: AI output requires strong creative direction or it produces homogeneous "local maxima" content.

How do Google App Campaign assets perform differently across placement types?

According to Google, YouTube placements favor video assets and typically drive 60-70% of video ad spend in App Campaigns. Display favors images. Search uses text only. You cannot control placement allocation directly, but uploading all asset types ensures full inventory access.

Should video assets include end cards or are they auto-appended?

Google auto-appends a final CTA card with your app icon and install button. However, including your own end card in the final 2-3 seconds with a reinforcing message ("Download Free Today") creates a double CTA effect that, per Google's creative guidance, improves conversion rates.

Need help scaling your mobile app growth? Talk to RocketShip HQ about how we apply these strategies for apps spending $50K+/month on UA.

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Related Reading

• The complete guide to mobile user acquisition (comprehensive guide)
• For finance apps, creative restrictions apply. Many ad networks ban imagery that implies guaranteed returns or shows specific dollar amounts. The core principle remains: clarity about the app’s function outweighs lifestyle aspiration.
• According to the Adjust State of App Growth report, creative diversity remains the top lever for scaling campaigns. Plan to refresh 30-40% of your creative assets monthly to combat fatigue, testing new angles while preserving top performers.
• For audio and music streaming apps specifically, videos optimized with both sound-on and sound-off viewing in mind see significantly better completion rates. Add captions or on-screen text that mirrors the voiceover to capture muted impressions.
• Per the social networking app advertising guide, thematic separation is especially important for apps with multiple use cases. A social app might have one ad group targeting content creators (“Grow your audience”) and another targeting consumers (“Discover trending content”).