The ASO Checklist for 2026: Screenshots, Keywords, Localization
Complete ASO checklist for 2026. Screenshots, keywords, localization, AI optimization, and store listing experiments. Everything you need for App Store and Google Play.
The ASO Checklist for 2026: Screenshots, Keywords, Localization
Complete ASO checklist for 2026. Screenshots, keywords, localization, AI optimization, and store listing experiments. Everything you need for App Store and Google Play.
1. Screenshots (Critical)
Screenshots are the #1 factor in install decisions:
- •Use all 10 screenshot slots
- •Design the first 3 screenshots for search result thumbnail size (flat, readable)
- •Use clear, benefit-driven captions (3-5 words)
- •Show real app UI, not marketing graphics
- •Use consistent background and caption style across the set
- •Export at the required device sizes (iPhone with Dynamic Island, iPad 13", plus iPhone Duo outer and inner displays for iOS 27.1 SDK builds from April 2027)
- •Use flat frames for frames 1-3, consider 3D for frames 4+
- •A/B test your first screenshot regularly
- •Localize screenshots for all target markets
2. Keywords and Metadata
Metadata optimization for AI-era search:
- •Identify 3-5 intent themes and structure all metadata around them
- •Use keywords in app title (30 chars max for App Store)
- •Write a compelling subtitle (30 chars max for App Store)
- •Write a clear, keyword-rich description (4000 chars for App Store, 4000 for Google Play)
- •Use Apple's keyword field (100 chars) with comma-separated keywords
- •Avoid keyword stuffing: semantic relevance matters more than repetition
- •Research competitor keywords and identify gaps
- •Update keywords based on performance data
3. Localization
Localization is the highest-ROI ASO activity:
- •Localize app title, subtitle, and description for target markets
- •Localize all screenshots with translated captions
- •Prioritize Tier-1 markets: Japanese, German, French, Korean, Spanish, Portuguese
- •Use AI translation for speed, then human-review for quality
- •Adapt messaging for cultural context, not just literal translation
- •Handle text expansion (German is 20-30% longer than English)
- •Support RTL languages (Arabic, Hebrew) if targeting those markets
- •Monitor per-locale performance and optimize top markets first
4. AI and GEO Optimization
Optimize for AI search engines in 2026:
- •Allow AI crawlers (GPTBot, ClaudeBot, PerplexityBot) in robots.txt
- •Publish an llms.txt file with structured app information
- •Use JSON-LD structured data on your app's landing page
- •Write clear, descriptive app descriptions (BLUF: Bottom Line Up Front)
- •Build brand mentions across the web: reviews, forums, articles
- •Keep content fresh: update quarterly for AI engine preference
- •Use consistent app naming and categorization across all platforms
5. Store Listing Experiments
Continuous optimization through testing:
- •Run Apple Product Page Optimization tests regularly
- •Run Google Play Store Listing Experiments
- •Test one variable at a time
- •Ensure sufficient traffic (1,000+ daily impressions)
- •Run tests for at least 7 days
- •Document test results and iterate
- •Use Custom Product Pages (70 per app) for audience targeting
- •Use Custom Store Listings for Google Play audience targeting
6. Technical Quality
Technical performance affects rankings:
- •Maintain high crash-free rates (99.5%+)
- •Minimize ANR (Application Not Responding) rates
- •Keep app size reasonable (under 200MB if possible)
- •Ensure fast launch times (under 2 seconds)
- •Monitor Android Vitals in Google Play Console
- •Fix technical issues promptly: they affect discovery
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