Table of contents
How we vet every listicle
Every agency featured on Web Tonic passes our 84-point editorial review before a single listicle goes live. This is how we vet each pick:
Verified client outcomes: We require real case studies with measurable KPIs — revenue, ROAS, CPA, retention — tied to the exact category being ranked. No cherry-picked wins, no unverifiable numbers.
Independent reputation: We cross-check Clutch, Google, G2, and Trustpilot ratings, and screen for review-bombing or suspicious patterns. Only operators with a consistent, verifiable track record make the cut.
Beyond that, every listing goes through a quarterly re-audit. We check 84 criteria across 6 pillars to make sure it still holds up — here are some of the checks we run:
An app store optimization (ASO) agency improves how an app ranks and converts in the Apple App Store and Google Play: it researches keywords, rewrites titles, subtitles and descriptions, redesigns icons and screenshots, tests store listings and manages ratings and reviews. Seattle's software, gaming, retail and health apps face crowded App Store categories, where a better listing can lift installs without raising ad spend.
To make this list, each of the eight external agencies had to offer app store optimization (ASO) on its own website. None of them is headquartered in Seattle, so each card names the agency's real base, and clients and prices appear only where published.
Who handles app store optimization for Seattle companies?
Web Tonic plus eight external agencies that offer app store optimization on their own sites. None is headquartered in the Seattle area; all run Seattle campaigns remotely. Seven name a client publicly and one publishes a price.
1. Web Tonic
About: Web Tonic runs app store optimization from our Seattle office with in-house creative, so keyword research, screenshots, store tests and Apple Search Ads sit with one team. Reporting is built around installs, conversion rate and revenue rather than rank alone, and store assets stay in the client's own name.
Key Services: Growth Marketing, Paid Social, PPC, Meta Ads, SEO, Google Ads, Snapchat Ads, Amazon Ads, Reddit Ads, TikTok Ads, TikTok Shop, GEO-AEO, Webflow Design, Shopify Design, WordPress Design, UGC, Social Media Management, Pay Per Click Management, Marketing Analytics, Analytics Implementation & CDPs, Performance Branding, Performance 360° Audit, Programmatic Ads, OOH Ads, HR Marketing
Industries Served: eCommerce, SaaS, B2B, Construction Professionals, Home Services, SMEs, Health Spa & Wellness, Retail, Legal & Judicial Services, Food & Beverages, Pets, Fitness, Family & Children, Finance & Insurance, Travel, Non-Profits & Organizations, Furniture & Decoration
Notable Clients: WorldRemit, Jack & Jones, Ardene, L’Oréal, Sendwave, Nestlé, Airbnb. Serve Fortune 500 companies and smaller fast-paced startups.
Locations: Local Seattle office, with the main HQ in San Francisco and notable offices in New York, Chicago, Miami, Toronto, Montreal, Dubai, Singapore, Sydney and more. Offices on five continents.
Pricing: Custom scope. Flexible and scalable plans according to your needs. Book a call to learn more.
Great For: Mid-market to enterprise-level businesses requiring ongoing, on-tap growth and performance marketing services.
Website: Web Tonic
2. ConsultMyApp
About: ConsultMyApp is a mobile and app marketing agency headquartered on Bonhill Street in London, with a North American office on West Georgia Street in Vancouver and another in Germany. It sells app store optimization, paid user acquisition and retention work, and names clients such as Macy's, MONOPOLY GO!, O2 Priority and PureGym.
Key Services: App Store Optimization, Paid User Acquisition, Retention and CRM, Apple Search Ads, App Analytics, Store Creative
Industries Served: Retail, Gaming, Telecoms, Fitness, Fintech
Notable Clients: Macy's, MONOPOLY GO!, O2 Priority, PureGym, Smarkets
Locations: London, UK (headquarters), Vancouver, British Columbia, Altshausen, Germany
Pricing: Quote-based
Great For: Consumer and subscription apps, App teams that want more organic installs, Companies pairing ASO with paid app campaigns
Website: ConsultMyApp
3. Strataigize
About: Strataigize is a Vancouver growth agency, operating since 2022, that runs marketing, automation and development as one team. Its mobile app marketing service includes app store optimization and Apple Search Ads, and it names clients such as 3M, Jiffy Lube, Goodwill and Kleo.
Key Services: App Store Optimization, Mobile App Marketing, Apple Search Ads, Paid Advertising, AI Search Optimization, Automation
Industries Served: Mobile Apps, Enterprise, Automotive Services, Nonprofits, Education
Notable Clients: 3M, Jiffy Lube, Goodwill, Kleo
Locations: Vancouver, British Columbia
Pricing: Quote-based
Great For: Consumer and subscription apps, App teams that want more organic installs, Companies pairing ASO with paid app campaigns
Website: Strataigize
4. Phiture
About: Phiture is a mobile growth consultancy and agency with hubs in Berlin, New York City, London and Barcelona, known for its Mobile Growth Stack framework. Its app store optimization team works on keywords, store creative and listing tests for the App Store and Google Play, and its site shows work for Deezer, Headspace, SoundCloud, HBO Max and Blinkist.
Key Services: App Store Optimization, Store Listing A/B Testing, Performance Marketing, CRM and Retention, Mobile Growth Consulting, Creative Production
Industries Served: Subscription Apps, Music and Audio, Health and Wellness, Entertainment, Gaming
Notable Clients: Deezer, Headspace, SoundCloud, HBO Max, Blinkist
Locations: Berlin, Germany, New York, New York, London, UK, Barcelona, Spain
Pricing: Quote-based
Great For: Consumer and subscription apps, App teams that want more organic installs, Companies pairing ASO with paid app campaigns
Website: Phiture
5. Yodel Mobile
About: Yodel Mobile is an app marketing agency on St John Street in London that sells app store optimization, user acquisition, mobile consultancy and creative. Its site lists ASO awards and shows brands such as NBCUniversal, Gymshark, The Economist, Afterpay and Blacklane.
Key Services: App Store Optimization, User Acquisition, Mobile Consultancy, App Creative, Keyword Research, Store Localization
Industries Served: Retail, Media and Publishing, Fintech, Travel, Fitness
Notable Clients: NBCUniversal, Gymshark, The Economist, Afterpay, Blacklane
Locations: London, UK
Pricing: Quote-based
Great For: Consumer and subscription apps, App teams that want more organic installs, Companies pairing ASO with paid app campaigns
Website: Yodel Mobile
6. Redbox Mobile
About: Redbox Mobile is an app growth marketing agency based on Great Titchfield Street in London. It sells app store optimization, creative strategy, Apple Ads and user acquisition, and its site shows brands such as The Wall Street Journal, Kongregate, Tinder and Sky Bet.
Key Services: App Store Optimization, Creative Strategy, Apple Ads, User Acquisition, Conversion Rate Optimization, Store Analytics
Industries Served: Media and News, Gaming, Dating, Fintech, Betting and Gaming
Notable Clients: The Wall Street Journal, Kongregate, Tinder, Sky Bet
Locations: London, UK
Pricing: Quote-based
Great For: Consumer and subscription apps, App teams that want more organic installs, Companies pairing ASO with paid app campaigns
Website: Redbox Mobile
7. Wuzzon
About: Wuzzon is an app growth agency founded in 2007 and based on Herengracht in Amsterdam, serving clients across Western Europe. It sells app store optimization next to performance marketing and app growth consulting, and its site shows apps such as de Bijenkorf, wehkamp, Woolsocks and FibriCheck.
Key Services: App Store Optimization, Performance Marketing, Apple Search Ads, Attribution, App Growth Consulting, User Acquisition
Industries Served: Retail, Ecommerce, Fintech, Health Apps, Energy
Notable Clients: de Bijenkorf, wehkamp, Woolsocks, FibriCheck
Locations: Amsterdam, Netherlands
Pricing: Quote-based
Great For: Consumer and subscription apps, App teams that want more organic installs, Companies pairing ASO with paid app campaigns
Website: Wuzzon
8. ASO Agency
About: ASO Agency is an app store optimization firm that publishes its plans: a one-time ASO audit at $1,490, ongoing work for one app at $3,990 per month and a Full-Stack plan at $7,990 per month. The Full-Stack plan adds Apple Search Ads management, localization for up to 10 markets, custom product pages and in-app events.
Key Services: App Store Optimization, ASO Audits, Keyword Optimization, Ratings and Reviews Management, Apple Search Ads, Store Localization
Industries Served: Mobile Apps, Subscription Apps, Gaming, Fintech, Health Apps
Notable Clients: Not named on the pages we checked
Locations: Office address not published on the pages we checked
Pricing: USD $1,490 one-time ASO audit; USD $3,990/month Growth plan (one app)
Great For: Consumer and subscription apps, App teams that want more organic installs, Companies pairing ASO with paid app campaigns
Website: ASO Agency
9. NextGrowthLabs
About: NextGrowthLabs is a data-driven marketing company in Bangalore that has built its own keyword and store intelligence systems since 2019. It sells app store optimization next to SEO, Apple Search Ads and conversion work, and its site shows brands such as Airtel, Bajaj Finserv, CoinMarketCap and Dream11.
Key Services: App Store Optimization, Keyword Intelligence, Apple Search Ads, SEO, LLM Optimization, Conversion Optimization
Industries Served: Telecoms, Fintech, Crypto, Fantasy Sports, Education
Notable Clients: Airtel, Bajaj Finserv, CoinMarketCap, Dream11, Alibaba Group
Locations: Bangalore, India
Pricing: Quote-based
Great For: Consumer and subscription apps, App teams that want more organic installs, Companies pairing ASO with paid app campaigns
Website: NextGrowthLabs
Quick Comparison Table
| Agency | Key Specialty | Starting Price | Best For |
|---|---|---|---|
| 1. Web Tonic | Full-Service Performance Marketing | Custom scope | Mid-market to Enterprise (local Seattle office) |
| 2. ConsultMyApp | ASO and UA with its own APPlyzer data tool | Quote-based | Consumer and subscription apps |
| 3. Strataigize | App growth plus automation from Vancouver | Quote-based | Consumer and subscription apps |
| 4. Phiture | Mobile growth consultancy with a deep ASO bench | Quote-based | Consumer and subscription apps |
| 5. Yodel Mobile | Award-listed ASO for consumer brands | Quote-based | Consumer and subscription apps |
| 6. Redbox Mobile | London app growth with an agile ASO team | Quote-based | Consumer and subscription apps |
| 7. Wuzzon | Dutch app growth agency with ASO at the core | Quote-based | Consumer and subscription apps |
| 8. ASO Agency | ASO specialist with published monthly plans | USD $1,490 one-time ASO audit; USD $3,990/month Growth plan (one app) | Consumer and subscription apps |
| 9. NextGrowthLabs | Tool-backed ASO for large app portfolios | Quote-based | Consumer and subscription apps |
Frequently Asked Questions
How do I choose an app store optimization agency in Seattle?
Start with the goal: more organic installs, better conversion from store page views, or a stronger rating. Then check proof. Seven of these eight agencies name a client on their own site (Macy's and 3M among them). Ask which keyword and store-testing tools they use, who designs the screenshots, whether they work on both iOS and Android, and how they separate organic installs from paid ones in reporting.
How much does an ASO agency cost in Seattle?
One of the eight external agencies here publishes a price: ASO Agency lists a USD $1,490 one-time audit and a USD $3,990 monthly Growth plan. The rest quote per scope. Fees depend on how many apps, platforms and languages are covered and how often the listing is tested. Ask whether new screenshots and videos are billed separately and whether Apple Search Ads management is included.
What is the difference between ASO and Apple Search Ads?
ASO works on the free side of the app stores: keywords, titles, descriptions, screenshots, ratings and store tests that lift organic rank and conversion. Apple Search Ads and Google App campaigns are paid placements bought per tap or install. The two feed each other, since paid search reveals which keywords convert. Some agencies here do both; others focus on organic store work only.
How long does app store optimization take to show results?
Metadata changes are indexed within days, and store listing tests usually need two to four weeks of traffic to reach a clear result. Keyword rankings tend to move over one to three months as installs and ratings build. In a market like Seattle, plan on at least a quarter of steady testing and updates before you judge an ASO program, and track conversion rate as well as rank.
Should a Seattle business hire a local ASO agency or a remote one?
None of the eight agencies here is headquartered in the Seattle area; they run campaigns from bases such as Amsterdam, Bangalore and Berlin. ConsultMyApp runs its North American office from Vancouver, where Strataigize is based. A local agency helps when you want to meet in person or run local research, but keyword work, store testing and reporting all run online. Experience with your audience and a creative process you trust matter more than the address.
Choosing an App Store Optimization Agency in Seattle
Start with your own numbers. Know your current store conversion rate, your top keywords and what an install or subscriber is worth to you. An agency can only plan keyword and creative tests around targets it has been told about.
Check experience you can verify. Seven of the eight external agencies name a client on their own site and one publishes a price. Ask the rest for a reference you can call, and see how our Apple Search Ads service supports store work.
Agree how you will work together. Settle who owns the developer console access, how many store tests run each month and which result month three is judged on. Our performance creative team can design icons, screenshots and preview videos.
Never skip the consultation. Book calls with two or three agencies from this list, bring the same brief to each and compare the questions they ask about your users. If you want a team in the city, meet our Seattle office.
