ASO Checklist 2026 — Complete App Store Optimization Guide

App Store Optimization (ASO) is the process of improving your app's visibility in app stores. With over 5 million apps available, standing out requires a strategic approach.

This checklist covers everything you need to optimize your app for both the Apple App Store and Google Play Store in 2026.

Pre-Launch ASO Checklist

Market Research

• [ ] Identify your target audience and their pain points
• [ ] Research competitor apps in your category
• [ ] Analyze competitor keywords and descriptions
• [ ] Review competitor ratings and common complaints
• [ ] Identify gaps in the market you can fill

Keyword Research

• [ ] Create a list of seed keywords related to your app
• [ ] Research search volume for potential keywords
• [ ] Analyze keyword difficulty and competition
• [ ] Identify long-tail keyword opportunities
• [ ] Create a primary keyword list (100 characters for iOS)
• [ ] Map keywords to specific metadata fields

App Store Metadata Checklist

App Name/Title (30 characters)

• [ ] Include primary keyword naturally
• [ ] Make it memorable and brandable
• [ ] Avoid special characters that don't add value
• [ ] Test readability at small sizes
• [ ] Ensure it's unique and not trademarked

Subtitle (iOS) / Short Description (Android)

iOS Subtitle (30 characters):

• [ ] Include secondary keyword
• [ ] Complement the app name
• [ ] Highlight key benefit

Google Play Short Description (80 characters):

• [ ] Include primary keyword
• [ ] Create a compelling hook
• [ ] Encourage the "Read More" click

Full Description

• [ ] Write a compelling first paragraph (visible before fold)
• [ ] Include keywords naturally (especially for Google Play)
• [ ] List 4-6 key benefits with bullet points
• [ ] Add social proof (downloads, ratings, press)
• [ ] Include relevant formatting (line breaks, emojis)
• [ ] End with a clear call-to-action
• [ ] Stay within 4,000 character limit

Keywords Field (iOS Only)

• [ ] Use all 100 characters
• [ ] Separate keywords with commas, no spaces
• [ ] Don't repeat words from app name or subtitle
• [ ] Avoid plurals (Apple handles this)
• [ ] Include misspellings of popular terms
• [ ] Test keyword combinations

Visual Assets Checklist

App Icon

• [ ] Design is recognizable at small sizes (29x29 to 1024x1024)
• [ ] Avoid text (illegible at small sizes)
• [ ] Use bold, distinctive colors
• [ ] Test against competitor icons
• [ ] Create variants for A/B testing
• [ ] Follow platform design guidelines

Screenshots

General Requirements:

• [ ] Show app in use, not just features
• [ ] Include captions that highlight benefits
• [ ] Use the first 2 screenshots wisely (most visible)
• [ ] Create screenshots for all supported device sizes
• [ ] Consider landscape format for impact

iOS Screenshot Checklist:

• [ ] Up to 10 screenshots per localization
• [ ] 6.7" display screenshots required
• [ ] Consider 6.5" and 5.5" variants
• [ ] iPad screenshots if universal app

Google Play Screenshot Checklist:

• [ ] Minimum 2 screenshots, up to 8
• [ ] Tablet screenshots recommended
• [ ] Consider feature graphic (1024x500)

App Preview Video (iOS) / Promo Video (Android)

• [ ] Keep under 30 seconds (15-30 optimal)
• [ ] Hook viewers in first 5 seconds
• [ ] Show actual app functionality
• [ ] Include captions for silent viewing
• [ ] Use high-quality screen recordings
• [ ] Consider localized versions

Technical ASO Checklist

App Performance

• [ ] App size is optimized (affects download rates)
• [ ] Load time is under 3 seconds
• [ ] Crash rate is below 1%
• [ ] Memory usage is optimized
• [ ] Battery impact is minimal

Ratings & Reviews

• [ ] Implement strategic in-app review prompts
• [ ] Respond to all negative reviews
• [ ] Thank positive reviewers
• [ ] Address common complaints in updates
• [ ] Monitor rating trends

Category Selection

• [ ] Choose primary category that fits best
• [ ] Select secondary category for discovery
• [ ] Research category competitiveness
• [ ] Consider subcategory options

Localization Checklist

Priority Markets

• [ ] Identify top markets by revenue potential
• [ ] Research local keyword trends
• [ ] Translate (don't just transcribe) descriptions
• [ ] Localize screenshots and captions
• [ ] Adapt imagery for cultural relevance
• [ ] Review local competitors

Supported Languages

| Language | App Store | Google Play | |----------|-----------|-------------| | English | ✓ | ✓ | | Spanish | ✓ | ✓ | | French | ✓ | ✓ | | German | ✓ | ✓ | | Japanese | ✓ | ✓ | | Korean | ✓ | ✓ | | Chinese (Simplified) | ✓ | ✓ | | Portuguese | ✓ | ✓ |

Post-Launch ASO Checklist

Monitoring

• [ ] Track keyword rankings weekly
• [ ] Monitor download trends
• [ ] Analyze conversion rates
• [ ] Watch competitor movements
• [ ] Review search term reports (Apple Search Ads)

Iteration

• [ ] Update keywords based on performance data
• [ ] Test new screenshot variations
• [ ] Refresh description with new features
• [ ] Respond to seasonal trends
• [ ] Run A/B tests (Google Play Experiments)

Updates

• [ ] Include ASO improvements in every update
• [ ] Update "What's New" section
• [ ] Highlight new features in description
• [ ] Request reviews after positive experiences
• [ ] Leverage feature launches for visibility

ASO Mistakes to Avoid

Keyword Stuffing

Don't: "Best free puzzle game free games puzzle games brain games" Do: Natural, readable copy with strategic keyword placement

Ignoring Negative Reviews

Don't: Leave complaints unaddressed Do: Respond professionally and fix issues

Set and Forget Mentality

Don't: Optimize once and never touch again Do: Regular analysis and iteration

Copying Competitors

Don't: Use identical keywords and messaging Do: Differentiate while learning from their success

Ignoring Visual Assets

Don't: Use low-quality or outdated screenshots Do: Invest in professional, benefit-focused visuals

ASO Tools Recommended

Keyword Research

• App Annie / data.ai
• Sensor Tower
• Mobile Action
• AppTweak

Screenshot Design

• Figma / Sketch
• Placeit
• AppLaunchpad
• Screenshot Designer

Content Generation

• AppStoreCopy - AI-generated optimized listings
• Grammarly - Copy editing
• Hemingway - Readability

Analytics

• App Store Connect Analytics
• Google Play Console
• Mixpanel
• Amplitude

Monthly ASO Audit Schedule

Week 1: Keywords

• Review keyword rankings
• Identify new opportunities
• Remove underperforming keywords

Week 2: Conversion

• Analyze impression-to-download rate
• Review screenshot performance
• Check icon click-through rate

Week 3: Reviews

• Respond to all new reviews
• Identify common themes
• Plan feature improvements

Week 4: Competitors

• Monitor competitor changes
• Identify new market entrants
• Adjust strategy as needed

Conclusion

ASO is not a one-time task—it's an ongoing process. Use this checklist to:

1. Set up your app store presence correctly
2. Monitor performance consistently
3. Iterate based on data
4. Stay ahead of competitors

The apps that succeed are those that treat ASO as a core part of their growth strategy.

Ready to optimize your app store listing? Generate your optimized listing with AppStoreCopy and implement this checklist today.