Looking for a top iOS app agency in Seattle?

iPhone developers are crucial for engaging the U.S. market. Finding the best one to develop your app, though, is challenging.

To assist you in your search for a partner, we’ve compiled this list of the top iphone applications development companies in Seattle. Browse descriptions, feedback, and awards to find which can best suit your company’s needs. If you need more support, tell us about your project, and we'll match you with recommended companies.

List of the Best Seattle iOS App Developers

  • 1
    $25,000+
    50 - 249 Employees
    Seattle WA

    Headquartered in Redwood City, Calif., Master of Code Global specializes in design and development for web, mobile, and chatbot solutions. Founded in 2004, they also have offices in Denver, Seattle, San Francisco, Winnipeg, Canada, Cherkasy, Ukraine, and Kiev. The team of over 130 has experience with artificial intelligence (AI) technologies and app development for enterprise and midmarket clients. 

    Clients
    World Surf League
    Mercedes Benz
    eBags
    StudySpace
    Industries
    Notable Project

    An electronics manufacturer hired Master of Code Global for help with Android app and backend website development. They also tested the client’s existing products. Master of Code Global’s work allowed the electronics company to sell 6,000 units of product.

    “Master of Code Global's work is competitively priced, but they're also experts in their field. They understood our requirements without me having to explain every little process to get to a result.” – CEO, Electronics Manufacturer

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  • 2
    Undisclosed
    10 - 49 Employees
    Seattle WA

    Founded in 2008, 8ninths is a Seattle-based augmented and virtual reality (AR/VR) solutions company. The team of 13 also provides mobile and web development, UI/UX design, and strategy.

    Clients
    Microsoft
    Toyota
    Starbucks
    Disney
    Notable Project

    A membership service for government contracts redesigned its website but realized it needed more help to boost traffic and present information in a more user-friendly way. They hired 8ninths to create a seamless user experience for the site.

    “We're thrilled with the solutions 8ninths developed and anticipate that they will save employee time, improve customer satisfaction, and increase revenue.” – Executive Director, Membership Service

  • 3
    $25,000+
    10 - 49 Employees
    Seattle WA

    Founded in 2000, UpTop specializes in UI/UX design but also shines in web and mobile app development. Their team of 50+ are passionate about solving complex problems and increasing revenue for their clients.

    Clients
    Amazon
    Microsoft
    Disney
    Boeing
    Industries
    Notable Project

    UpTop recently completed a project for a data services provider. They needed help creating a consumer-facing portal. UpTop developed and designed the entire portal from frontend to backend.

    “They were clear, honest and set expectations fairly. They knew when to push back and ask us to think twice about a request. On the other hand, they were able to take pressure from us since we're still the customer.” – CTO, Data Services Provider

  • 4
    $25,000+
    10 - 49 Employees
    Seattle WA

    Zazz is a Seattle-based mobile app development company founded in 2011. They have an additional office in San Francisco. Their team of approximately 50 employees serves clients of all sizes and industries. In addition to app development, they also specialize in enterprise app modernization and UX/UI design.

    Clients
    Inclose
    Ideal Smart
    Sparehandz
    Industries
    Notable Project

    Zazz created iOS and Android apps that connect to a Bluetooth-enabled barbecue. Users can switch the product on and off, as well as control its temperature, from their phone. The team delivered a bug-free product and great designs.

    "Besides development, they also did the UX/UI of the app and designed our logo, as well." — Chief Product Officer, Startup

  • 5
    Undisclosed
    50 - 249 Employees
    Seattle WA

    Smashing Ideas is a mobile app development company that offers an array of services such as UI/UX design, web design, data strategy and analytics, and quality assurance and testing. Since its founding in 1996, Smashing Ideas has grown to over 50 employees who are passionate, curious, and creative.

    Clients
    Sony
    Microsoft
    Mattel
    General Electric
    Notable Project

    A news outlet commissioned Smashing Ideas to create apps for its weather stations. Smashing Ideas developed both tablet and smartphone apps.

    “When they’re coming up with the ideas, they’re phenomenal ideas, and they’re also reasonable and feasible ideas. That mix of creativity and always knowing what can be executed is where they’re strongest. Their ability to execute on the creative ideas that the team comes up with is what distinguishes them for me.” – Senior Manager, Newspaper Publishing Company

  • 6
    Undisclosed
    50 - 249 Employees
    Bellevue WA

    Founded in 2010, WaferWire Cloud Technologies is located in Bellevue, Wash. Their team of about 50 employees provides web design, graphic design, and ERP consulting and SI services.

    Clients
    Treasury Curve
    Jamaica's Forestry Department
    World Vision
    Gazprom
    Notable Project

    WaferWire Cloud Technologies is providing third-party web development for an analytics company. They contributed rapid prototyping and UI development for several models and decision support spaces. They offer competitive rates and provide great customer value.

     "Their rates are very competitive and represent a good value for their customer." –Owner, Analytics Company

  • 7
    $10,000+
    10 - 49 Employees
    Medina WA

    A full-service digital design and development agency, Flower Press Creative Studio takes on mobile app, web, and custom software development projects. Founded in 2001, the small team of 6 is headquartered in Seattle and also has experience in UI/UX design.

    Clients
    Nike
    Disney
    SurveyMonkey
    Lipton
    Industries
    Notable Project

    A founder of a social meetup company needed help launching the business. Flower Press Creative Studio agreed to help, developing an iOS app and assisting with branding.

    “She was really good at taking my ideas and turning them into something usable. She’s easy to work with, as well as versatile. She has a way of remedying doubts clients might have about their ideas.” – Founder, Social Meetup App

  • 9
    $25,000+
    50 - 249 Employees
    Kirkland WA

    Heaven Solutions is an IT staff augmentation company founded in 2005. The company offers IT staff augmentation, application testing, custom software development, web development, and more and has a midsize team. The company is based in Kirkland, Washington; Iași, Romania; Bensheim, Germany and Il-Gżira, Malta.

    Industries
    Notable Project

    Heaven Solutions has aided the custom software development efforts for a streaming service provider's delivery system. They continue to support the platform by implementing enhancements and system integrations.

    "Heaven Solutions is a results-oriented team that strives to deliver optimal results."

  • 10
    Undisclosed
    2 - 9 Employees
    Seattle WA

    SB Develops is a development agency based in Seattle with no more than 10 experts. They specialize in web development, mobile app development, and UX/UI design solutions for clients that work in the industries of consumer products, IT services, and more.

    Clients
    Cuddle Lock
    Industries
    Notable Project

    SB Develops developed a custom software solution for a stroller renting platform. The platform was to allow users to rent strollers across various devices. SB Develops finished the project earlier than scheduled.

    “The project management was great. They always met their deadlines and we never had anything unexpected occur.” - CEO & Founder, Stroller Renting Platform

  • 11
    Undisclosed
    2 - 9 Employees
    Seattle WA

    Ministry of Product is a web development company that was founded in 2005 and is headquartered in Seattle. Their team of 3 employees specializes in mobile app development, web development, and UX/UI design. They mostly work with companies in the business services, entertainment, and consumer products industries.

    Clients
    EarthCorps
    CEDAR
    Blue Nile
    Industries
    Notable Project

    Ministry of Product worked for a dog sitter booking service where they designed a mobile app for iOS. They incorporated different functions for the app, including searching and messaging features for users. The design of the app impressed the client.

    "The design work especially has been very top-notch." – Co-Founder/Director or Software Development, Dog Sitter Booking Service

  • 12
    $25,000+
    250 - 999 Employees
    Seattle WA

     Neudesic is a technology company with offices in Irvine, CA, Atlanta, GA, Chicago, IL, Irving and Houston, TX, Denver, CO, Las Vegas, NV, Exton, PA, Tempe, AZ, Portland, OR, New York, and India.  It specializes in big data consulting, custom software development, cloud consulting, and mobile app development. The agency of more than 800 employees was founded in 2002. Most clients work in the healthcare, energy, and gaming industries. 

    Clients
    Hasbro
    American Cancer Society
    Hyatt
    Xerox
    Industries
    Notable Project

    Neudesic upgraded a recipe website to an efficient Cloud platform.  The system makes available to users a variety of easily accessible recipes, reviews, videos, and shopping lists. These content offerings are customized and can be set to fit users' specific preferences. The website has been growing consistently since Neudesic began their involvement. 

     

  • 13
    $5,000+
    10 - 49 Employees
    Kirkland WA

    Based in Kirkland, Wash., ITIRRA is a boutique technology consulting firm. Since 2008, their team of 12 has been specializing in web development, mobile app development, IT strategy consulting, and more. 

    Clients
    Sports Aptitude
    ADURO
    Vitagramma
    AIDA Healthcare
    Notable Project

    ITIRRA provides ongoing development services to a healthcare solutions company. The team worked on a product that would improve case management processes. Their honest feedback made the first version of the product a success.

    "Communication was great." – CEO, Healthcare Solutions Company

  • 14
    $10,000+
    10 - 49 Employees
    Seattle WA

    Helpful Human is a development agency based in Seattle. Since 2013, their team of 15 has been specializing in web design and development, mobile app development, and UX/UI design. They work primarily with small businesses in the information services and business services industries.

    Clients
    Rudy's
    naturewise
    Elm Coffee Roasters
    Holland America Line
    Industries
    Notable Project

    A tech startup hired Helpful Human for their design expertise. They conducted background research, made suggestions for a prototype test, and will assist with future phases. The client prides Helpful Human on being responsive. 

    "Their experience and expertise played a major part and they were thoughtful and insightful." – Owner, Technology Startup 

  • 15
    $1,000+
    2 - 9 Employees
    Kirkland WA

    CASoft Seattle is a web design, development, and marketing company located in Kirkland, Wash. Founded in 2017, CASoft Seattle has a team of three employees that not only specialize in web development but also mobile app and custom software development. Their marketing expertise spans SEO, PPC, and branding. They primarily work with small businesses. 

    Clients
    Footlogix
    Great Plains College
    Modern Metals
    Mobile Veterinary Mission
    Notable Project

    CASoft Seattle built a platform for a social media streaming app. The product emphasized group navigation and privacy. For example, users who uploaded a video to the platform could control who saw the content. After working with a development team that could not complete the project, the social media platform hired CASoft Seattle. They built a custom iOS platform that included the client's desired featured and addressed coding issues in the backend.

    "After working with some of the highest rated development firms, I appreciate how CASoft Seattle does business. Their ability to communicate and work within a partnership is second to none. They had a lot of issues working with the original code but were ultimately able to succeed where other companies failed." – Founder and CEO, Social Media Streaming App

  • 16
    $5,000+
    2 - 9 Employees
    Seattle WA

    Founded in 2003, Swecker is a Seattle-based web development agency that serves small and mid-market businesses. In addition to web development, the team of fewer than 10 also offers mobile app and custom software development and design.

    Clients
    Microsoft
    Farmers Insurance
    The Pike Place Market
    Canoe Ridge Vineyard
    Industries
    Notable Project

    When a wine company noticed their online presence dwindling, they hired Swecker. Swecker developed and modernized the client’s Drupal8 and WordPress websites, and helped troubleshoot their content management system (CMS) issues.

    “Everything is done in a timely manner. They're always super communicative, and they do quality work.” – Creative Coordinator, Wine Company

  • 17
    Undisclosed
    50 - 249 Employees
    Seattle WA
    App development firm Deloitte Digital was founded in 2010. The midsize London, United Kingdom-based team focuses on mobile app development, web design, web development, and custom software development.
    Industries
  • 18
    $1,000+
    10 - 49 Employees
    Seattle WA
    Moby is an user experience agency. They are headquartered in Seattle, Washington and have a small team. Their services include ux/ui design, mobile app development, product design, web development, and more.
  • 19
    Undisclosed
    2 - 9 Employees
    Bothell WA
    Website development company Ravenna was founded in 2007. Their small team is located in Bothell, Washington and focuses on web development, mobile app development, web design, and e-commerce development.
  • 20
    $1,000+
    2 - 9 Employees
    Bothell WA

    JoDi Services is a tech solutions provider based in Bothell, Wash. Their team of less than 10 serves small business, midmarket, and enterprise clients across IT and other industries. Services include web, mobile app, e-commerce, and more software development.

    Clients
    FunkiCases
    Tshirts Are Us
    Dahmein
    My Home Answers
    Industries
    Notable Project

    JoDi Services built the app for a startup. The app was built for iOS and android and allows the user to manage functions' attendance, RSVPs, and more.

    "Services went beyond my expectations and made an app that meet industry standards. The final app didn't have any bugs or flaws." - Founder, Startup

  • 21
    $10,000+
    1,000 - 9,999 Employees
    Seattle WA

    Possible is a global digital marketing agency founded in 2011.  It provides mobile app development, UX/UI design, social media marketing, digital strategy, and content marketing.  The agency has offices in LA, Seattle, Atlanta, Cincinnati, Denver, New York, and Portland. International branches include Singapore, China, Costa Rica, Brazil, Germany, Romania, Poland, Hungary, Argentina, Russia, and the UK.  Possible employs over 1200 staff across these 19 locations.

    Clients
    Adidas
    Microsoft
    Coca-Cola
    The Bill and Melinda Gates Foundation
    Industries
    Notable Project

    Possible was hired by an airline to create a consumer-facing mobile app. The app is available for iOS and Android and to improve travelers'  flight booking, check-in, and boarding processes. The app has over 5.5 million downloads and won several awards.

     

  • 22
    $5,000+
    50 - 249 Employees
    Bellevue WA
    Tech Pathway is a web development firm. Established in 2017, the midsize agency is located in Jaipur, India and Bellevue, Washington. Their team focuses on web development, mobile app development, and e-commerce development.
    Industries
  • 23
    TechValens Software Systems LLC Logo

    TechValens Software Systems LLC

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    $1,000+
    50 - 249 Employees
    Bellevue WA
    TechValens Software Systems LLC is a midsize application development company. Headquartered in Bellevue, Washington, the agency was founded in 2007. Their team offers mobile app development, web development, application management & support, and application testing.
  • 24
    $50,000+
    50 - 249 Employees
    Seattle WA
    Substantial, a digital strategy company, was launched in 2006. They are located in Seattle, Washington and have a midsize team. Their services include digital strategy, mobile app development, web design, and web development.
    Industries
  • 25
    $5,000+
    50 - 249 Employees
    Redmond WA
    Citizen, Inc. Is a midsize UX company. Founded in 2005, the agency is based in Portland, Oregon and Redmond, Washington. Their team specializes in ux/ui design, mobile app development, web development, digital strategy, and more.
    Industries
  • 26
    $100,000+
    50 - 249 Employees
    Seattle WA
    Carbon Five is a software development firm. Established in 2000, the midsize company is located in San Francisco, California; Santa Monica, California; Chattanooga, Tennessee and New York, New York. Their services include custom software development, mobile app development, web development, web design, and more.
    Industries
  • 27
    Wunderman Thompson Mobile Logo

    Wunderman Thompson Mobile

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    $50,000+
    50 - 249 Employees
    Seattle WA
    Wunderman Thompson Mobile is a midsize UX design agency. Located in Denver, Colorado; Atlanta, Georgia; Seattle, Washington and New York, New York, the firm was established in 2008. Their services include ux/ui design, mobile app development, application management & support, AR/VR development, and more.
    Industries
  • 28
    $5,000+
    50 - 249 Employees
    Seattle WA
    INFINITE ART SOLUTIONS is a graphic design company launched in 2014. The firm offers graphic design, mobile app development, ux/ui design, and AR/VR development and has a midsize team. The firm is located in Seattle, Washington.
    Industries
  • 29
    $50,000+
    50 - 249 Employees
    Seattle WA
    Launched in 2009, GenUI is a cloud consulting & SI company. The company offers cloud consulting & SI, mobile app development, web development, ux/ui design, and more and has a midsize team. The company is based in Seattle, Washington.
    Industries
  • 30
    Elite Crest Technologies Logo

    Elite Crest Technologies

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    $25,000+
    10 - 49 Employees
    Seattle WA
    Elite Crest Technologies is an artificial intelligence firm headquartered in Seattle, Washington and Madhapur, India. The small team specializes in Artificial Intelligence, IoT development, mobile app development, AR/VR development, and more. The agency was launched in 2011.
Tell us about your project
NEED HELP SELECTING A COMPANY?

Based on your budget, timeline, and specifications we can help you build a shortlist of companies that perfectly matches your project needs. Schedule a free consultation with a Manifest Analyst.

TELL US ABOUT YOUR PROJECT