Our Top Picks

47-Degrees-LLC
47 Degrees LLC
  • Gaming
  • Information technology services
  • Media and entertainment
Visit 47 Degrees LLC
47 Degrees specializes in software development with extensive knowledge developing Android and iOS mobile apps. It focuses on improving specific areas within mobile apps, including performance, reliability, availability, maintainability and user experience. It handles designing, development and deployment of a business’ mobile app and seamlessly integrates with in-house teams to provide additional bandwidth and years of development expertise. Besides its Seattle location, 47 Degrees also has offices in London, England and Cadez and Madrid, Spain. Other services include:

  • Consulting and Training
  • Team Augmentation
  • Architectural Guidance
  • Code Review
  • Big Data Solutions
  • Full Stack Development
  • Restful APIs
  • Third Party Integrations
  • Cloud Migration

Summary

47-Degrees-LLC
47 Degrees LLC
Visit 47 Degrees LLC
  • Starting Price
    • $100 - $149 / hr
  • Address
    1012 1st Ave., Suite 600, Seattle, WA 98104
  • Number of Employees
    68
  • Phone Number
    206-701-6277
  • Service Lines
    Scaleable Software Solutions
    Consulting
    Project Development
    Code Review
    BI & Big Data Consulting & SI
    Enterprise App Modernization
    Cloud Consulting & SI
Industry Focus
  • Gaming
  • Information technology services
  • Media and entertainment
8ninths
8ninths
  • Automotive
  • Retail
  • Aerospace
Visit 8ninths
8ninths specializes in web and mobile apps, virtual reality, augmented reality and mixed reality for industries across all verticals. It’s a platform and services company focused on enabling businesses to explore virtual and mixed reality to gain new value with key focus in holographic management systems. 8ninths’ design and development services translate to various platforms from mobile phones to the new HoloLens. Other services include:

  • 3D Modeling and Animation
  • 3D Interaction Design
  • 3D Interface Design
  • 3D Audio Design
  • 360 Video
  • Visual Design & Illustration
  • Concept Art & Storyboarding
  • Content Strategy
  • Data Visualization
  • Branding & Identity
  • User Experience & Interface Design

Summary

8ninths
8ninths
Visit 8ninths
  • Starting Price
    • $150 - $199 / hr
  • Address
    3005 112th Ave NE, Suite 250, Bellevue, WA 98004
  • Number of Employees
    10 - 49
  • Phone Number
    206-494-4339
  • Service Lines
    AR/VR Development
    Mobile App Development
    Web Development
Industry Focus
  • Automotive
  • Retail
  • Aerospace
AccelOne
AccelOne
  • E-commerce
  • Financial Technology
  • Healthcare & Medical
Visit AccelOne
AccelOne is a mobile application development company with a full suite of services to fit clients of all sizes. Its software engineers, application architects and UX/UI designers can build iOS or Android apps natively or by using a cross-platform framework. Besides its Seattle location based in Kirkland, Washington, AccelOne also has an office in Buenos Aires, Argentina. Key services include:

  • iOS Application Development
  • Android Application Development
  • Hybrid Mobile Application Development
  • Xamarin Application Development
  • Custom Software Development
  • UX/UI Design
  • Web Applications
  • Ecommerce Development
  • Medical Software Development
  • Cryptocurrency Software Development
  • VR/AR Development
  • Quality Assurance
  • JavaScript
  • Salesforce

Summary

AccelOne
AccelOne
Visit AccelOne
  • Starting Price
    • $50 - $99 / hr
  • Address
    608 State Street South #100, Kirkland, WA 98033
  • Number of Employees
    10 - 49
  • Phone Number
    800-863-6814
  • Service Lines
    Custom Software Developmen
    UX/UI Design
    Mobile App Development
Industry Focus
  • E-commerce
  • Financial Technology
  • Healthcare & Medical
Apptentive
Apptentive
  • Travel and Hospitality
  • Media
  • e-Commerce
Visit Apptentive
Apptentive offers a specific type of mobile app to companies that allows business owners to gather actionable feedback from their customers. This app measures shifts in customer emotion with Apptentive’s Voice of the Customer solution so businesses can take immediate action to win back unhappy customers and create a more customer-centric environment. It also offers its app for the web to provide multi-channel feedback, combine web and mobile experiences and create interactive customer communication. The Apptentive solution is designed to grow revenue, while encouraging more customer engagement and building ongoing customer loyalty.

Summary

Apptentive
Apptentive
Visit Apptentive
  • Starting Price
    • $100 - $149 / hr
  • Address
    1932 1st Ave, Suite 300, Seattle, WA 98101
  • Number of Employees
    51 to 200
  • Phone Number
    774-277-8368
  • Service Lines
    Enterprise Software
    Network Solutions
Industry Focus
  • Travel and Hospitality
  • Media
  • e-Commerce
CASoft-Seattle
CASoft Seattle
  • IT Services
  • Entertainment
  • Manufacturing
Visit CASoft Seattle
CASoft Seattle offers web design services and mobile app development to help small businesses establish an online presence by building mobile friendly websites. It also helps companies win new customers through digital marketing strategies. Its mobile app development services include building Android and iOS mobile apps for the latest smartphones. CASoft Seattle provides a flexible development system that allows customers to update their apps once the initial applicant is deployed on app stores. Other services include:

  • Software Development
  • Responsive Web Design
  • Web Development
  • Website Management
  • User Experience (UX)
  • Content Management
  • Branding Service

Summary

CASoft-Seattle
CASoft Seattle
Visit CASoft Seattle
  • Starting Price
    • $50 - $99 / hr
  • Address
    11335 NE 122nd Way Suite 105, Kirkland, WA 98034
  • Number of Employees
    2 - 9
  • Phone Number
    425-292-1578
  • Service Lines
    Search Engine Optimization
    Web Design
    Web Development
Industry Focus
  • IT Services
  • Entertainment
  • Manufacturing
ChopDawgNewLogo
Chop Dawg
  • Real estate
  • Consumer products & services
  • Health Care & Medical
Visit Chop Dawg
Chop Dawg delivers cross-platform apps for iPhones, tablets and Android devices. Previously built apps include custom chatbots, IoT apps, blockchain apps and mobile commerce. It covers maintenance during app launch and eliminates bugs during QA testing without charge. Chop Dawg also offers an initial 45-minute consultation for free.

Summary

ChopDawgNewLogo
Chop Dawg
Visit Chop Dawg
  • Starting Price
    • $150 - $199 / hr
  • Address
    107 Spring Street, Seattle, WA 98104
  • Number of Employees
    10 - 49
  • Phone Number
    800-490-1476
  • Service Lines
    Mobile App Development
    UX/UI Design
    Web Development
Industry Focus
  • Real estate
  • Consumer products & services
  • Health Care & Medical
Deloitte
Deloitte Digital
  • Health Care & Medical
  • Information technology
  • Transportation
Visit Deloitte Digital
Deloitte also acquired Übermind in January 2012, which is a leading agency for mobile and web apps. Through this venture, it delivers apps and websites that help transform clients’ businesses by creating a brick-and-mobile landscape.

Summary

Deloitte
Deloitte Digital
Visit Deloitte Digital
  • Starting Price
    • $150 - $199 / hr
  • Address
    821 2nd Ave Suite 200, Seattle, WA 98104
  • Number of Employees
    50 - 249
  • Phone Number
    206-633-1167
  • Service Lines
    Mobile App Development
    Web Design
    Web Development
Industry Focus
  • Health Care & Medical
  • Information technology
  • Transportation
PayScale
PayScale
  • Media
  • Retail
  • e-Commerce
Visit PayScale
PayScale creates specific types of software solutions that focus on compensation and salary survey data for every organization and compensation situation. PayScale’s software allows businesses to do away with spreadsheets and craft compensation strategies more efficiently. Two specific software solutions it offers include:

  • Insight Lab: Compensation management software with intuitive structure modeling and transparent datasets that helps businesses attract and retain top talent.
  • Marketpay: Enterprise compensation management software that ensures accuracy and security for global compensation professionals.

Summary

PayScale
PayScale
Visit PayScale
  • Starting Price
    • $150 - $199 / hr
  • Address
    1000 1st Avenue South, Seattle, WA 98134
  • Number of Employees
    201 to 500
  • Phone Number
    888-219-0327
  • Service Lines
    Compensation Software
    Data Analysis
Industry Focus
  • Media
  • Retail
  • e-Commerce
Ply-Interactive
Ply Interactive
  • Food and Beverage
  • Events
  • Education
Visit Ply Interactive
Ply Interactive includes a small team of digital designers and developers that handcraft user-centered websites and mobile apps. It’s been designing and building websites since 1995 and has worked with some of the largest companies in the world, including Boeing, Nestle, Microsoft and Amazon. Ply uses a non-linear approach to researching, planning and testing that’s interwoven and iterative. Core services include:

  • Design and User Experience
  • Responsive Mobile Development
  • iOS and Android Apps
  • Full-Stack Development
  • Website Wireframes
  • Information Architecture
  • Feature Prototypes
  • Persona Development
  • Dedicated Hosting
  • Online Business Strategy
  • Website User Experience Audit
  • CMS Configuration and Integration
  • Strategy and Project Management

Summary

Ply-Interactive
Ply Interactive
Visit Ply Interactive
  • Starting Price
    • $100 - $149 / hr
  • Address
    111 W. John St., Suite 307 Seattle, WA 98119
  • Number of Employees
    2 - 9
  • Phone Number
    206-595-8185
  • Service Lines
    E-Commerce Development
    Web Development
    Web Design
Industry Focus
  • Food and Beverage
  • Events
  • Education
Projekt202
projekt202
  • Automotive
  • Retail
  • Electronics
Visit projekt202
The designers and developers at projekt202 build dynamic software that evolve to meet emerging challenges and provide modern solutions. They build scalable architecture that leverages its clients’ existing capabilities and tailored to match their strategies. Since 2003, projekt202 has been perfecting its approach to deliver sophisticated software solutions that improve every touchpoint. Besides its Seattle location, it also has offices in Austin, Texas, San Francisco, California, Chicago, Illinois, Atlanta, Georgia, Dallas, Texas, and Kuala Lumpur, Manila and Tokyo. Software development services include:

  • Native and Hybrid Mobile Apps
  • Front-End Development
  • Cloud
  • Database
  • DevOps
  • REST Services
  • NoSQL
  • Distributed Systems
  • Performance Monitoring

Summary

Projekt202
projekt202
Visit projekt202
  • Starting Price
    • $100 - $149 / hr
  • Address
    999 3rd Ave Suite 1501, Seattle, WA 98104
  • Number of Employees
    250 - 999
  • Phone Number
    206-602-6999
  • Service Lines
    Custom Software Development
    UX/UI Design
    Web Development
Industry Focus
  • Automotive
  • Retail
  • Electronics
Seattle-Software-Developers
Seattle Software Developers
  • Arts, entertainment & music
  • Information technology
  • Media
Visit Seattle Software Developers
Within the software development service, specific tasks include:

  • Software Consultancy
  • Custom Dashboards
  • Directories
  • CRM Systems
  • System Integrations
  • Booking Platforms
  • Software Testing & Quality Control
  • Release & Support

Summary

Seattle-Software-Developers
Seattle Software Developers
Visit Seattle Software Developers
  • Starting Price
    • $100 - $149 / hr
  • Address
    4-102nd ave NE Bellevue, WA 98004
  • Number of Employees
    10 - 49
  • Phone Number
    425-256-2815
  • Service Lines
    Web Development
    Custom Software Development
    Mobile App Development
Industry Focus
  • Arts, entertainment & music
  • Information technology
  • Media
Smashing-Ideas
Smashing Ideas
  • Media and Entertainment
  • Consumer Electronics
  • Education
Visit Smashing Ideas
Smashing Ideas’ help businesses create new or revamp existing digital services and products to achieve greater profitability and maximum long-term value for their customers. It works on end-to-end programs or businesses can bring its consultants in during a specific part of the process. Motivational UX™ is Smashing Ideas’ user-centric approach to innovation that applies decades of multidisciplinary research, providing clients with a strategic edge over competitors. Key services include:

  • iOS & Android App Development
  • AR/VR/MR Development
  • AI/ML Strategy
  • Progressive Web App
  • Mobile Site Development
  • API Development
  • Information Architecture
  • Animation and Motion Graphics
  • Motivational User Experience™ Design
  • UX & UI Design

Summary

Smashing-Ideas
Smashing Ideas
Visit Smashing Ideas
  • Starting Price
    • $100 - $149 / hr
  • Address
    2211 Elliott Ave, Suite 110, Seattle, WA 98121
  • Number of Employees
    50 - 249
  • Phone Number
    206-378-0100
  • Service Lines
    UX/UI Design
    IT Strategy Consulting
    Mobile App Development
    Web Marketing
Industry Focus
  • Media and Entertainment
  • Consumer Electronics
  • Education
Swecker
Swecker
  • Information technology
  • Advertising & marketing
Visit Swecker
Swecker's key services include:

  • Strategy Services
  • Digital Product Development
  • Creative Consulting
  • Conversion Rate Optimization
  • Content Marketing
  • Search Engine Optimization
  • Market Research

Summary

Swecker
Swecker
Visit Swecker
  • Starting Price
    • $100 - $149 / hr
  • Address
    506 2nd Ave, Suite 1400, Seattle, WA 98104
  • Number of Employees
    2 - 9
  • Phone Number
    855-367-7632
  • Service Lines
    Web Development
    Web Design
    Custom Software Development
Industry Focus
  • Information technology
  • Advertising & marketing
Vectorform
Vectorform
  • Arts, entertainment & music
  • Consumer products & services
  • Health Care & Medical
Visit Vectorform
Founded in Detroit, Michigan, Vectorform has global offices in Seattle, Detroit, New York, Munich, Germany and Hyderabad, India. Vectorform has 20 years of experience helping clients invent digital products to solve complex problems. Because web and mobile remain the most popular way for customers to interact with businesses and their brand, its specialized services include:

  • Native Mobile Apps
  • Custom Web and Mobile Apps
  • Design Prototypes
  • Digital & Innovation Strategy
  • Platform-Agnostic Developers
  • Research and Strategy
  • Innovation Consultancy
  • Internet of Things
  • Immersive Technology
  • Emerging Technology
  • Software, Hardware and Firmware Engineering
  • Human Data Sciences
  • Experience Design

Summary

Vectorform
Vectorform
Visit Vectorform
  • Starting Price
    • $200 - $300 / hr
  • Address
    2211 5th Ave. Ste. 201, Seattle , WA 98121
  • Number of Employees
    50 - 249
  • Phone Number
    800-475-6279
  • Service Lines
    Web Design
    UX/UI Design
    Custom Software Development
Industry Focus
  • Arts, entertainment & music
  • Consumer products & services
  • Health Care & Medical

How We Chose the Top Mobile App Development Companies in Seattle

Finding the best mobile app developer in Seattle can be daunting with so many options available that all boast the latest features and services. We evaluated companies on what’s most important, including service lines, firm size, and industry focus.

Multiple Service Lines

Mobile application developers often create other digital products, including custom software for desktop, web and mobile platforms, and e-commerce programs that might work together with mobile applications. Some also design and develop websites or work on UX/UI design or cloud-based platforms. Because businesses have different needs, we choose firms with multiple services lines that could tackle a variety of requirements.

Size of Firm

Firm size can be a major factor for businesses with large projects they need completed quickly, which may require a larger firm with a sizable employee pool. It can also be a concern for businesses with smaller budgets who might find lower price points at smaller firms. There are advantages and disadvantages of working with large firms or small firms, so we selected firms of varying sizes to meet the needs of multiple businesses.

Industry Focus

Mobile application developers often work with companies in the same industry to develop a niche because they have previous experience in the field. Common industries developers focus on include IT services, consumer goods and services, entertainment, finance, and e-commerce. We looked for firms with varied industry focus to cover as many business needs possible.

Questions to Ask Mobile App Development Companies

With so many mobile application development companies in Seattle each offering similar features, it’s important to ask the right questions during your initial discovery call or demo. To help you make the right inquiries, we put together a downloadable list of questions to ask your prospective mobile application developer agencies.

Download the questions to ask mobile application developers

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