App Store Optimization Checklist for 2026

A good checklist turns ASO from a vague intention into concrete, repeatable action. This app store optimization checklist walks through every area that matters — keywords, metadata, creatives, ratings, localization, and testing — so you can audit your current listing and systematically improve it in 2026. Work through it in order, and revisit it regularly, since ASO is ongoing.

For a rankings-focused version, see our guide to the ASO audit checklist; for a step sequence, app store optimization steps.

1. Keyword research

The checklist starts with keywords, because they determine what searches you appear for. Confirm you have researched the terms your audience actually uses — not internal jargon or clever marketing names, but the words real users type when looking for an app like yours. Use store autocomplete on both the App Store and Google Play to see real phrasing, think through the jobs your app does and how users describe them, and consider your competitors' terms. Build a list of candidate keywords and prioritize them by relevance to your app, opportunity (searchable demand), and winnability (whether you can realistically rank). This prioritized keyword list is the foundation every later step builds on, so do not rush it. A strong aso checklist always begins here, because optimizing metadata without the right target keywords is optimizing toward the wrong goal.

2. Title and subtitle

Next, check your most valuable metadata. Your app's title (or name) carries the most keyword weight on both stores, so confirm it includes your most important keyword naturally alongside your brand, without becoming spammy. Your subtitle (iOS) or short description (Android) is the next most valuable field — verify it uses additional important keywords while clearly communicating your value, since it is seen by users too. These fields do double duty: they influence ranking and they persuade the people who see them, so they must read well while carrying keywords. Confirm you are using the full character allowance thoughtfully rather than leaving space unused or padding with weak terms. Getting the title and subtitle right captures a large share of ASO's ranking value, so this checklist item deserves careful attention.

3. Keyword field and description

Continue with the remaining metadata, which differs by store. On iOS, check your 100-character keyword field: it should be packed efficiently with relevant keywords, using no spaces after commas, no repetition of words already in your title or subtitle, and no wasted characters on plurals the store handles automatically. On Android, since Google Play indexes your full description, check that it naturally incorporates your important keywords at a sensible density while reading well for humans — not stuffed, but not devoid of your target terms either. On iOS the description is not indexed for search, so there it serves purely to convince readers. Confirm you are respecting each store's mechanics: the same keywords need different placement on each. This item ensures you are exploiting all the indexed space each store offers.

4. Creatives

Move to creatives, which drive conversion. Check that your icon is distinctive and appealing at small sizes. Verify your screenshots lead with your strongest benefits, show the app in use, and carry clear captions — and that the first two or three, which many viewers never scroll past, communicate your value immediately. Confirm you have a preview video if it suits your app, to demonstrate it for viewers who want to see it in action. Since conversion rate is both a direct install driver and a ranking signal, this creative checklist item is as important as the keyword items.

5. Ratings and reviews

Check your ratings and reviews, which affect both conversion and ranking. Confirm you are prompting satisfied users for reviews at good moments — after a positive experience, not intrusively — to build a strong, fresh rating. Verify you are responding to reviews, especially critical ones, showing responsiveness and often improving sentiment. Check that you are monitoring for negative spikes tied to bugs or changes, which can dent both trust and rankings if left unaddressed. A healthy, actively-managed review profile reassures prospective users and signals quality to the stores, so this item ensures your reputation is working for you rather than being neglected.

6. Localization

If you serve multiple markets, check your localization. Confirm you have localized your metadata — not just translated, but adapted to the keywords, phrasing, and preferences of each market, since search behavior varies by country. Verify your creatives suit each market culturally where relevant. Localization multiplies your reach by making you relevant and findable in each storefront, and on iOS additional localizations can even expand your indexed keyword space. This checklist item ensures you are not leaving international growth on the table by presenting a single-market listing to a global audience.

7. Testing and measurement

Finally, check your testing and measurement routine, which makes ASO improve rather than stagnate. Confirm you are tracking your rankings for target keywords, your conversion rate, and your installs over time, so you can see what works. Verify you are testing changes — especially creatives — rather than guessing, keeping variants that perform. And confirm you have a cadence for revisiting this whole checklist, since ASO is ongoing and competition and algorithms shift. This measurement-and-testing item turns the checklist from a one-time audit into a continuous improvement loop, which is where ASO's compounding value comes from.

A worked example

Consider a team that runs through this checklist on their underperforming app. On keywords, they discover they had targeted vague marketing terms and rebuild their list around what users actually search. On title and subtitle, they insert their top keywords naturally. On the keyword field, they pack it efficiently, removing wasted duplicates. On creatives, they rewrite screenshots to lead with benefits and add a video. On reviews, they start prompting satisfied users. On localization, they properly adapt their listing for their two priority markets. On testing, they begin tracking rankings and conversion and testing creative variants. Over the following weeks, each improvement contributes — better keywords lift rankings, better creatives lift conversion (which lifts rankings further), better reviews build trust — and their organic installs grow steadily. The checklist turned a neglected listing into an optimized, improving one. Running it periodically keeps it that way.

Common mistakes

The recurring mistakes are treating the checklist as one-time rather than recurring, doing only the keyword items and neglecting creatives or reviews, applying iOS tactics to Android or vice versa, and skipping the testing-and-measurement step so you never learn what works. Working the full checklist regularly, tailored to each store, avoids these.

Let AppsLift run this checklist for you

Working through every item on the ASO checklist — and turning it into top rankings — is exactly what AppsLift does. Since 2012 we have pushed 400+ iOS and Android apps to the top of store search, turning organic search into their cheapest install channel.

Start with a free AppsLift audit: paste your app link, pick your markets, and see your real keyword positions plus the install value of reaching the Top 3 — a checklist audit in one step. When you want the whole checklist executed for you, talk to our team. Next, read our guide to the ASO audit checklist.