App store optimization services help a mobile app get found, and installed, by people browsing or searching the Apple App Store and Google Play. A good ASO partner researches the keywords your future users type, rewrites your title and metadata, tests icons and screenshots, and tracks how those changes move impressions, page views and installs. For most apps, organic store traffic is the cheapest install channel available, which is exactly why paying for help with it can make sense.
It is also a category full of vague promises. "We'll get you to the top of the charts" is not a scope of work. This guide explains what ASO services should include, what they typically cost, how to tell whether one is working, and when you are better off doing it in-house. If you are still deciding how app marketing fits together as a whole, start with our broader guide to app marketing services and come back here for the ASO detail.
Why ASO matters more than most teams think
Store search is a discovery engine in its own right. Apple has said for years that a majority of App Store downloads start with a search, and Google Play behaves similarly for intent-driven categories like finance, fitness and productivity. Those searches are high intent: someone typing "budget tracker" or "invoice maker" wants an app now.
Three things make store visibility especially valuable:
- It compounds. A paid install costs the same tomorrow as it did today. A ranking you earn keeps delivering installs until a competitor displaces it.
- It lowers blended acquisition cost. Every organic install pulls down your average cost per install. If you track customer acquisition cost across channels, ASO is usually the line item that makes paid campaigns look affordable.
- It amplifies paid spend. Store algorithms reward install velocity and conversion rate. A better-converting product page makes Apple Search Ads and Google App campaigns cheaper, and paid bursts can lift organic rankings in turn.
What app store optimization services actually include
The phrase covers a wide range of work. When you compare proposals, map each one against these components.
Keyword research and metadata
This is the foundation. The agency should build a keyword universe for each store and each target market, scored by search popularity, difficulty and relevance. On iOS the main levers are the app name (30 characters), subtitle (30 characters) and the hidden keyword field (100 characters). On Google Play, the title (30 characters), short description (80 characters) and the full description (4,000 characters) are all indexed, so copy has to read naturally while still carrying the right terms.
Ask how they handle the two stores differently. An agency that writes one set of metadata and pastes it into both is leaving rankings on the table.
Creative optimization
Your icon, screenshots and preview video decide whether a searcher taps "Get". Strong ASO services treat these as conversion assets, not decoration. Expect them to propose a hypothesis per test (for example, "lead with the outcome, not the feature list"), produce variants, and run them through Apple's Product Page Optimization or Google Play's Store Listing Experiments.
Creative work is often where the biggest lifts come from. A first screenshot that clearly states the core benefit can lift page-to-install conversion by 20% or more in competitive categories.
Conversion rate tracking
Every store reports a funnel: impressions, product page views, and installs. The ratio of installs to page views is your store conversion rate. You can sanity-check your numbers with our conversion rate calculator, but the point is that an ASO service should report this funnel every month, segmented by search, browse and referral traffic. Without that split you cannot tell whether a change helped search rankings or simply converted existing traffic better.
Ratings and review management
Rating average and review volume affect both ranking and conversion. Services usually help you time in-app rating prompts around positive moments, set up response templates, and flag recurring complaints to the product team. Be wary of anyone offering to "boost" reviews directly. Incentivized or fake reviews violate both stores' policies and can get an app pulled.
Localization
Translating metadata is not the same as localizing it. Users in Germany, Brazil or Japan search with different words and respond to different screenshots. Good services do separate keyword research per locale. Apple also lets you use extra localizations in the same territory (for example, the Mexican Spanish slot indexed in the US), a tactic experienced ASO teams use to fit more keywords.
Custom product pages and in-app events
Apple's custom product pages and Google Play's custom store listings let you build variants of your listing for specific audiences or ad groups. In-app events and Google Play promotional content create extra surfaces in search and browse. These are relatively new levers, and they separate current ASO specialists from teams still running a 2019 playbook.
How ASO services are priced
Pricing varies widely, but most offers fall into four models.
| Model | Typical US price | Best for |
|---|---|---|
| One-off audit | $1,000 – $5,000 | Apps that want a roadmap before committing |
| Monthly retainer | $2,000 – $10,000+ per month | Ongoing keyword, creative and testing work |
| Project-based creative | $3,000 – $15,000 per set | Screenshot and video overhauls |
| Software-only | $50 – $1,000+ per month | Teams with in-house capacity |
Retainers at the low end usually cover one store and one market with metadata updates and reporting. The top end includes both stores, several locales, creative production and a dedicated strategist. A handful of providers offer performance-based pricing tied to ranking positions. Read those contracts carefully, because rankings for low-volume terms are easy to win and worth very little.
To judge whether a quote is reasonable, work backwards from economics. If an organic install is worth what a paid one would cost, and your paid cost per install is $3, then a $4,000 monthly retainer needs to drive roughly 1,300 extra organic installs a month to break even. Our break-even calculator makes that arithmetic quick, and you can push it further by weighting installs by user value with the LTV calculator. An install from a user who stays and subscribes is worth far more than one who opens the app once.
How to measure whether ASO is working
ASO results are noisy. Seasonality, featuring, competitor launches and paid campaigns all move the same numbers. To keep an agency honest, agree on measurement before work starts.
- Set a baseline. Record four to eight weeks of impressions, page views, installs and conversion rate by traffic source before changes go live.
- Track keyword rankings, but weight them. A climb from position 40 to 8 for a high-popularity term matters. Ranking first for a term with no volume does not.
- Isolate organic search installs. App Store Connect and the Play Console both break out search traffic. That is the cleanest signal for metadata work.
- Use store-native A/B tests for creative. Let tests reach significance, and avoid running a creative test during a large paid push that changes your traffic mix.
- Connect installs to revenue. Pass store and campaign data into your analytics or MMP so you can see whether ASO-driven users retain and pay. Our conversion tracking guide covers the setup principles, and if you are struggling to credit organic versus paid, a dedicated marketing attribution tool can help untangle it.
A reasonable expectation is visible ranking movement within four to eight weeks of a metadata update on Google Play, and often faster on iOS, where changes ship with each version. Creative tests usually need two to four weeks per round. Anyone promising transformational results in the first fortnight is guessing.
ASO agency, freelancer or in-house?
Choose an agency if you run both stores, target several markets, and need creative production alongside strategy. You are paying for a team and process, plus experience across many apps in your category.
Choose a freelancer if you have one app in one or two markets and mainly need keyword and metadata expertise. Many senior ASO specialists work independently and cost a fraction of an agency retainer.
Build in-house once ASO is a core channel and you release frequently. A growth marketer with an ASO tool subscription and design support can run a steady testing cadence, often better than an outside team that lacks product context.
Many apps blend models: an agency audit to set direction, then an internal owner who executes, with a freelancer brought in for localization.
Questions to ask before you sign
- Which ASO tool do you use for keyword data, and will we get access to it?
- Can you show a case study in our category, with impressions and conversion data rather than just rankings?
- How do you approach iOS and Google Play differently?
- How many creative tests will you run per quarter, and who produces the assets?
- What does the monthly report include, and how do you separate ASO impact from paid campaigns?
- What happens to our keyword research and creative files if we end the contract?
If you also run paid user acquisition, ask how they coordinate with your media team. Paid and organic store performance are tightly linked, and the agency running your ads, for example a TikTok ads agency driving installs, should be sharing creative learnings with whoever owns the store listing.
Red flags to watch for
- Guaranteed number-one rankings. No one controls the algorithm, and guarantees usually hide low-value keywords.
- Fake or incentivized reviews and install farms. These break store policies and risk removal of your app.
- Keyword stuffing. Repeating terms in the title or description hurts conversion and can trigger rejection on review.
- No access to your consoles. An agency that only shares screenshots of its own dashboard cannot be audited.
- Long lock-in contracts. Three months is a fair minimum to judge results. Twelve-month commitments up front shift all the risk onto you.
Getting the most from an ASO partner
The best results come when the service is treated as part of the product team. Share your release calendar so metadata updates ride along with versions. Give them your retention and revenue data, not just installs, so they optimize for the right users. Feed them review themes and support tickets, which are often the best source of screenshot messaging. And keep your paid spend efficient in parallel: track return on ad spend with our ROAS calculator so you can see how a better-converting listing improves paid efficiency, too.
App store optimization is rarely glamorous, but it is one of the few app growth channels whose gains persist after you stop paying. Pick a partner who measures the funnel honestly and you will usually see that in your blended acquisition cost within a quarter.
Frequently asked questions
How much do app store optimization services cost?
Most US providers charge $2,000 to $10,000 or more per month for an ongoing retainer, depending on how many stores, markets and creative tests are included. One-off ASO audits typically cost $1,000 to $5,000, and self-serve ASO software ranges from about $50 to over $1,000 per month.
How long does ASO take to show results?
Expect early keyword ranking movement within four to eight weeks of a metadata change, and sometimes sooner on iOS. Creative tests need two to four weeks each to reach a reliable result. Meaningful, durable growth in organic installs usually becomes clear after about three months of consistent work.
Is ASO different for the App Store and Google Play?
Yes. Apple indexes the app name, subtitle and a hidden 100-character keyword field, but not the long description. Google Play indexes the title, short description and full description, so keyword placement in body copy matters there. Testing tools, review rules and update timing also differ between the two stores.
Can ASO replace paid user acquisition?
Rarely on its own, especially for new apps with little install history. ASO works best alongside paid campaigns: paid installs build the velocity that helps rankings, while a better-converting store listing lowers the cost of every paid install. Over time, strong ASO lets you rely less on paid spend.