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The Ultimate App Store Optimization Checklist

Boost search rankings and maximize conversion rates. Check off each optimization step as you build, refine, and launch your mobile app store presence.

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ASO Toolkit Integration

Use Appstro's free suite of tools to research keywords, check metadata character limits, and track search ranks.

Identify 5-10 Direct Competitors

Pre-launch

Audit rival apps in your category. Note their naming conventions, App Title keywords, Subtitles, visual style, and reviews.

Pro Tip: Create a spreadsheet tracking competitor titles and category rankings monthly.

Brainstorm 50+ Seed Keywords

Pre-launch

List core terms representing your app’s functions, benefits, synonyms, and search queries real users would type.

Pro Tip: Ask non-technical friends how they would search for your app to get unbiased terms.

Extract Competitor Keywords

Pre-launch

Analyze competitor metadata (titles, subtitles, and promotional text) to discover secondary keywords they are targeting.

Pro Tip: Use our Keyword Explorer to discover keywords your competitors rank for.

Scrape App Store Autocomplete Suggestions

Pre-launch

Type letters into the App Store search bar and write down autocomplete recommendations to spot high-intent phrases.

Pro Tip: Autocomplete suggestions are updated dynamically by Apple based on search frequency.

Check Keyword Search Popularity (Volume)

Pre-launch

Filter out keywords with negligible traffic. Focus on terms with a Search Popularity score of 15 or higher.

Pro Tip: Popularity scores range from 0 to 100 based on Apple Search Ads data.

Assess Keyword Difficulty

Pre-launch

Evaluate top 10 ranking apps for your target keywords. If they all have >50k ratings, choose a less competitive term.

Pro Tip: Target long-tail keywords (e.g., "meditation timer for sleep") to start.

Audit Keyword Relevance

Pre-launch

Ensure every keyword matches your app’s core functionality. Driving traffic for irrelevant terms hurts conversion.

Pro Tip: Irrelevant terms cause high bounce rates and lower your rank over time.

Analyze App Store Categories

Pre-launch

Compare competition levels in App Store Connect. Choose primary and secondary categories where your app fits naturally.

Pro Tip: The right category can boost browse traffic and make ranking easier.

Map Keywords to User Intent Stages

Pre-launch

Classify keywords into high-intent (problem-solving) and low-intent (browsing) to prioritize metadata placement.

Pro Tip: High-intent keywords should go into the App Name and Subtitle.

Determine Priority Localization Markets

Pre-launch

Identify which international storefronts offer the biggest market opportunity for your specific app niche.

Pro Tip: ASO localization is the single most effective way to multiply your downloads.

Review Storefront Cross-Localization Rules

Pre-launch

Analyze which secondary localizations index in your primary markets to utilize extra keyword capacity.

Pro Tip: The US storefront indexes Spanish (Mexico), giving you an extra 100 keyword characters.

Draft App Name (Title)

Metadata

Create a title up to 30 characters using the formula: Brand Name + Primary Keyword (e.g., "ZenSleep: Sleep Tracker").

Pro Tip: This field has the strongest ranking weight. Put your best keyword here.

Draft Subtitle

Metadata

Write a subtitle up to 30 characters explaining the benefit. Use secondary keyword themes distinct from the App Name.

Pro Tip: Avoid repetitive words to maximize your keyword indexing footprint.

Audit Title & Subtitle for Repetition

Metadata

Scan the title and subtitle to ensure zero duplicate words. Apple indexes individual words and combines them.

Pro Tip: Repetition wastes precious character limits and provides zero ranking boost.

Formulate Comma-Separated Keyword List

Metadata

Build a 100-character keyword string. Separate words with commas and no spaces (e.g., "sleep,relax,noise,rest").

Pro Tip: Spaces inside the keyword field waste character count limits.

Remove Duplicate Words in Keyword Field

Metadata

Ensure no keywords used in your App Name or Subtitle are repeated in the 100-character keyword field.

Pro Tip: Apple combines all fields automatically. Keep the keyword field unique.

Use Singular Nouns to Save Space

Metadata

Stick to singular forms (e.g., "tracker" instead of "trackers"). Apple’s algorithm matches basic plurals.

Pro Tip: This simple practice can free up 5-10 extra characters for new terms.

Strip Out Filler Words

Metadata

Delete words like "app", "free", "the", "a", or your category name from the keyword field. Apple indexes these automatically.

Pro Tip: Never include competitor brand names as it can lead to rejection.

Write Compelling Hook (First 3 Lines of Description)

Metadata

Craft a persuasive opening. Users only see the first 3 lines before the "More" link folds the rest.

Pro Tip: Focus on social proof, awards, or the absolute biggest benefit.

Structure Detailed App Description

Metadata

Write a clean, 4000-character description with bullet points showing key features, benefits, and support links.

Pro Tip: Apple does not index the description, but Google Search and web browsers do.

Draft Promotional Text

Metadata

Write a 170-character marketing blurb. You can edit this field at any time without submitting a new app binary.

Pro Tip: Use it to promote sales, version updates, features, or upcoming events.

Optimize Developer Name

Metadata

Ensure your developer account name reads professionally. It is indexed by search engines and groups your portfolio.

Pro Tip: If possible, align it with your brand name to establish developer credibility.

Name In-App Purchase (IAP) Products Strategically

Metadata

Use keywords in your individual IAP display names (up to 30 characters), as they can appear in search results.

Pro Tip: For example, use "Premium Sleep Sounds Access" instead of "Tier 1 Subscription".

Design High-Contrast App Icon

Creative

Create an icon with a clear visual metaphor. Avoid text, clutter, and fine details that blur when small.

Pro Tip: Check contrast on both light and dark backgrounds.

Perform Competitor Icon Grid Test

Creative

Place your icon candidate in a grid of competitor icons to ensure yours draws the eye first.

Pro Tip: Stand out by choosing contrasting colors or distinctive branding.

Design Benefit-First Screenshot (Screen 1)

Creative

Use your first screenshot to show the core value proposition. Put the main visual benefit here.

Pro Tip: 80% of users decide to download based on the first 3 portrait screens.

Add Bold, Action-Oriented Text Captions

Creative

Overlay high-contrast, large text on screenshots. Ensure captions can be read in under 2 seconds on a small screen.

Pro Tip: Avoid long paragraphs; keep captions under 5-6 words.

Ensure Visual Sequence Tells a Story

Creative

Arrange screenshots 1, 2, and 3 to represent a cohesive journey. Don’t repeat similar UI layouts.

Pro Tip: Flow: 1. Core Benefit, 2. Secondary Feature, 3. Success State/Result.

Use Clean App UI Device Mockups

Creative

Place your screenshots in modern phone frames. Strip out irrelevant carrier text, status bars, and battery icons.

Pro Tip: A clean mockup focuses the user’s eyes entirely on your app interface.

Showcase Secondary Features in Screens 4-10

Creative

Utilize the remaining screenshot slots to showcase supplementary features, dark mode, settings, or credentials.

Pro Tip: You can upload up to 10 screenshots per device size in App Store Connect.

Highlight Awards, Ratings, or Press

Creative

Include badges or text referencing prominent features, awards, or high user reviews in your screenshots.

Pro Tip: Social proof significantly increases storefront installation conversion.

Verify Dark Mode & Light Mode Representation

Creative

Showcase UIs in the system theme that looks best. Mix light and dark screens if it matches your app features.

Pro Tip: If your app is a sleep/night app, dark theme screenshots are mandatory.

Hook Users in App Preview Video (First 5s)

Creative

Start your preview video with immediate action or a highlight. Do not start with a static title screen or logo.

Pro Tip: App Preview videos autoplay in muted mode in search results.

Add Muted Video Text Annotations

Creative

Overlay legible captions explaining what is happening on screen, since most users watch videos without sound.

Pro Tip: Keep text overlays short, centered, and visible against the app UI.

Translate All Creative Text

Creative

Localize all captions on screenshots and video overlays for your priority international storefronts.

Pro Tip: Translating text increases localized conversion rates by up to 40%.

Validate Character Limits

Launch

Ensure Title is <= 30, Subtitle is <= 30, Keywords is <= 100, and Description is <= 4000 characters.

Pro Tip: Use our ASO Metadata Checker to audit your text strings instantly.

Clean Comma Spacing in Keywords Field

Launch

Double-check that the 100-character keyword field contains no spaces after commas.

Pro Tip: Correct: "a,b,c". Incorrect: "a, b, c" (wastes character slots).

Configure Localized Storefront Metadata

Launch

Paste translated titles, subtitles, keywords, and descriptions into each active localization tab.

Pro Tip: Ensure your app icon matches regional branding if applicable.

Upload Required Screenshot Sizes

Launch

Provide assets for 6.7" (iPhone 12-15 Pro Max) and 6.5" (iPhone XS Max/11 Pro Max) devices at minimum.

Pro Tip: Check Apple guidelines for exact pixel aspect ratios.

Review App Store Review Guidelines

Launch

Verify your metadata contains no prohibited terms (like mentions of Android, test, beta, or external pricing).

Pro Tip: Policy violations can lead to metadata rejections and delay your launch.

Integrate Native Ratings Prompt API

Launch

Set up SKStoreReviewController inside your codebase. Let Apple handle the rating modal natively.

Pro Tip: Natively prompted users rate apps at a much higher frequency than custom prompts.

Strategize Review Prompt Triggers

Launch

Set triggers after high-satisfaction moments (e.g., completing a task, hitting a streak), never at launch.

Pro Tip: Avoid prompting when a user encounters an error or is in the middle of a flow.

Verify Review Prompt Limits and Throttle

Launch

Apple allows the native prompt to appear up to 3 times in a 12-month period. Guard against spamming.

Pro Tip: Maintain local state to track when prompts are shown to prevent wasted opportunities.

Configure In-App Purchase Promo Assets

Launch

Upload visual display cards in App Store Connect to showcase your subscriptions directly in search results.

Pro Tip: This expands your storefront footprint and enables direct purchases.

Establish App Store Connect Analytics

Launch

Confirm your account has permissions to view storefront impressions, product page views, and download charts.

Pro Tip: Analytics help you measure how ASO impacts download conversions.

Build Keyword Rank Tracker List

Post-launch

Register all target keywords from your metadata in your keyword rank tracker to monitor position baselines.

Pro Tip: Track keyword rankings daily during the initial 2-3 weeks of launch.

Monitor App Store Connect CVR (Conversion Rate)

Post-launch

Track conversion rates (Unique Downloads divided by Impressions). Aim for a benchmark of 25% - 35%.

Pro Tip: If CVR is below 20%, focus on updating your icon or first 3 screenshots.

Allow 2-3 Weeks for Search Indexing to Stabilize

Post-launch

Do not modify metadata immediately. Apple’s search index takes several days to process new metadata changes.

Pro Tip: Changing metadata too frequently confuses the index ranking algorithm.

Optimize keywords ranking in positions 11-40

Post-launch

For keywords you rank near the top 10, consider moving them into the App Name or Subtitle to boost positions.

Pro Tip: Moving a keyword to a stronger field can push it into the high-traffic top 5.

Prune Keywords Ranking >50

Post-launch

If a keyword remains below position 50 after 3 weeks, replace it with a less competitive or long-tail term.

Pro Tip: Don't waste metadata space on keywords that are too competitive for your authority.

Monitor and Respond to Customer Reviews

Post-launch

Set up a weekly review cycle. Reply to critical feedback. If a user raises a bug, fix it and ask them to update their rating.

Pro Tip: Replying to reviews builds user trust and signals active development to Apple.

Set Up Product Page Optimization (PPO) Tests

Post-launch

Use Apple's native A/B testing tool in App Store Connect to test screenshot variants, icons, or videos.

Pro Tip: Test one element at a time (e.g. screenshots only) to isolate performance impacts.

Develop Custom Product Pages (CPPs)

Post-launch

Create tailored landing pages for specific external sources (e.g. TikTok ads or specific influencer campaigns).

Pro Tip: CPPs let you match the storefront creative to the specific marketing campaign.

Plan Next Metadata Refresh Cycle

Post-launch

Schedule your next keyword update in 4-6 weeks based on rank tracking data and search volume shifts.

Pro Tip: ASO is an ongoing, iterative process. Constantly adapt to protect your traffic.

Read the Complete ASO Guide

Confused about how to perform any of these steps? Our complete, step-by-step App Store Optimization (ASO) guide details character limits, keyword formulas, localization tricks, and creative benchmarks.

Go to ASO Guide

FAQ: App Store Optimization Checklists