Find the top mobile app development companies in Washington that create high-performing and user-friendly apps to help businesses drive conversions. Use our practical tool to filter them by cost, team size and client reviews.

Best Washington Mobile App Developers

9 Companies - Rankings updated: September 05, 2026

All agencies are evaluated on DesignRush for demonstrated expertise and authentic client reviews to support your decision. Certain placements are paid.

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United States × Washington × Entertainment × Sort by: Avg Hourly Price: Low to High × Clear Filters

  • NTSprint LLC

    Maximizing Ideas

    NTSprint helps U.S. businesses accelerate growth through AI-powered software, dedicated nearshore engineering teams, and scalable cloud solutions. With 10+ years of experience and 500+ projects delivered, we provide real-time collaboration, faster delivery, and measurable business impact...

    Top Services:

    • Software Development
    • AI Development
    • Cloud Consulting
    • Web Development
    • Mobile App Development
    • Show more
    Location
    Bothell, Washington
    Number of Employees
    100 - 249
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    13 Projects Listed

    NTSprint LLC Services

    • Software Development
    • AI Development
    • Cloud Consulting
    • Web Development
    • Mobile App Development
    • eCommerce Development
    • Staff Augmentation
    • DevOps Consulting
    • Web Design
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Lexus
    • Microsoft
    • Unitii
    Data sourced from the agency's DesignRush profile

    NTSprint LLC Reviews & Testimonials

    • Leniecer Gonzalez Gandara
      Leniecer Gonzalez Gandara Review from Google
      5.0 ★

      Leniecer Gonzalez Gandara's Review Sourced from Google

      I've had the pleasure of working with NTSprint for our custom web application development, and I can confidently say they exceeded all expectations. From the initial consultation to deployment, their team demonstrated exceptional professionalism, technical expertise, and genuine commitment to our project's success.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    5.0 5.0 (2)

  • 9series

    Handcrafted Technology Solutions

    At 9series, we help organizations move beyond traditional software by building intelligent systems powered by AI...

    Top Services:

    • Mobile App Development
    • AI Development
    • IoT
    • Software Development
    • Cloud Consulting
    • Show more
    Location
    Bellevue, Washington
    Number of Employees
    250 - 499
    Average Hourly Rate
    $40/hr
    Portfolios Count
    3 Projects Listed

    9series Services

    • Mobile App Development
    • AI Development
    • IoT
    • Software Development
    • Cloud Consulting
    • DevOps Consulting
    • Digital Services
    • Digital Strategy
    • eCommerce Development
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • iWayTrack
    • Overlay Planner
    • Product Tube
    Data sourced from the agency's DesignRush profile
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  • Softleo LLC

    An Artificial Intelligence Solution Company.

    Softleo LLC. is led by highly qualified, creative and thoroughly experienced IT Professionals with an aim to deliver value and unlock the true potential of Organizational IT Assests and investments through innovative Artificial Intelligence and Machine Learning solutions. Softleo is having head office in...

    Top Services:

    • Software Development
    • AI Development
    • Web Development
    • Mobile App Development
    • Digital Marketing
    • Show more
    Location
    Bothell, Washington
    Number of Employees
    50 - 99
    Average Hourly Rate
    $40/hr
    Minimal Budget
    Under $1,000

    Softleo LLC Services

    • Software Development
    • AI Development
    • Web Development
    • Mobile App Development
    • Digital Marketing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • RitiRiwaz
    • KambojSociety
    • TheSportsLead
    Data sourced from the agency's DesignRush profile

    Softleo LLC Reviews & Testimonials

    • Simran Josan
      Simran Josan Review from Google
      5.0 ★

      Simran Josan's Review Sourced from Google

      Had a great experience with the Softleo team for my IT consultation needs. The team was very knowledgeable and very attentive to the issues I needed addressed. 100% recommended them for anyone looking for expert work for any type of software development needs or IT consultations.

    • Vinay3 Goyal3
      Vinay3 Goyal3 Review from Google
      5.0 ★

      Vinay3 Goyal3's Review Sourced from Google

      For all your software and frontend needs you can consult Diya. She listens to you and has a creative mindset.

    • Vikram Kamboj
      Vikram Kamboj Review from Google
      5.0 ★

      Vikram Kamboj's Review Sourced from Google

      I had an amazing experience working with Softleo LLC! Their team was incredibly professional, responsive, and skilled in delivering exactly what we needed for our business. The software they developed for us was intuitive, robust, and tailored perfectly to our requirements. What stood out the most was their customer service - they went above and beyond to ensure we were satisfied at every stage, from planning to deployment. Plus, their turnaround time was impressive without compromising on quality. If you're looking for a reliable, innovative, and client-focused software company, I highly recommend Softleo LLC! We will definitely be coming back for future projects.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    5.0 5.0 (5)

  • Neaxus

    Innovative Software Solutions for All

    Empowering businesses with cutting-edge software development services. Been a digital solution provider since 2018. Lets transform your digital presence together...

    Top Services:

    • Software Development
    Location
    Tacoma, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $40/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed

    Neaxus Services

    • Software Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • eCommerce Industry
    • Corporate Services Industry
    • Retail Industry
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • Safztech

    Your Vision Engineered To Perfection

    Safztech is committed to quality, client satisfaction, and measurable results, delivering tailored solutions that elevate brands, enhance user engagement, and drive business growth...

    Top Services:

    • Web Design
    • Web Development
    • Mobile App Development
    • Social Media Marketing
    • Branding
    • Show more
    Location
    Bothell, Washington
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr

    Safztech Services

    • Web Design
    • Web Development
    • Mobile App Development
    • Social Media Marketing
    • Branding
    • Graphic Design
    • PPC
    • SEO
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • eCommerce Industry
    • Food and Beverage Industry
    • Retail Industry
    Data sourced from the agency's DesignRush profile
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  • Qodestar

    Mobile App Experiences That Inspire

    Qodestar is a digital studio focused on building clean, high-performing mobile apps and digital experiences. We partner with startups, growing businesses, and creative teams to transform ideas into intuitive mobile solutions through thoughtful design and development...

    Top Services:

    • Mobile App Development
    • Product Design
    • UI/UX Design
    • Digital Marketing
    • SEO
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $75/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed

    Qodestar Services

    • Mobile App Development
    • Product Design
    • UI/UX Design
    • Digital Marketing
    • SEO
    • PPC
    • Social Media Marketing
    • eCommerce
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • 15 Fifteen Media
    • CareBridge
    • LMI Colorado
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • Chop Dawg

    Verified Verified by the DesignRush team for authenticity and credibility. Award Winner Recipient of a Best Design Award for outstanding work.

    Meet The Partner Behind Your App's Success | Make It App'n!

    Meet your award-winning app development team, dedicated to turning your vision into scalable and profitable digital apps and software...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Development
    • eCommerce Development
    • WordPress Website Design
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    52 Projects Listed

    Chop Dawg Services

    • Mobile App Development
    • Software Development
    • Web Development
    • eCommerce Development
    • WordPress Website Design
    • UI/UX Design
    • Software Testing
    • Wearables
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Alpha Paw
    • Big Brothers Big Sisters
    • Choice Home Warranty
    • City of Peachtree Corners, Georgia
    • City of Philadelphia, Pennsylvania
    • City of Springboro, Ohio
    • CRBO
    • FlynnO'Hara
    • Hilton
    • Innovative
    Data sourced from the agency's DesignRush profile

    Chop Dawg Reviews & Testimonials

    • Malik Boyd
      Malik Boyd Co-Founder at GyftMasters
      5.0 ★

      Mobile App Development Review from Malik Boyd

      Chop Dawg helped us turn our gifting app concept into a working prototype, handling wireframes, UI design, coding, data storage, and automation from scratch. Their team has been transparent, proactive, and highly responsive throughout the process. They provide clear schedules, flag issues early, and keep us informed at every stage. We’ve been very happy with the prototype so far and are excited to move into full iOS and Android development.

    • Anonymous
      Anonymous Founder at Cuddlebids
      5.0 ★

      Mobile App Development Review from Anonymous

      Chop Dawg took our iOS app from concept to launch, handling design, development, AWS, and App Store requirements. Their team was responsive, practical, and highly supportive throughout the process. They also stayed involved after launch with updates and fixes, and even helped promote the app through their network. Their support contributed to strong early growth and helped position the company for a later acquisition.

    • Anonymous
      Anonymous Executive at Undisclosed
      5.0 ★

      Web Design Review from Anonymous

      Chop Dawg supported us with UX/UI design for a new fintech web application. They took the time to understand our users, product requirements, features, and overall vision before moving into design. Over a 6 to 7 week engagement, their team shared regular Figma reviews, incorporated feedback quickly, and stayed highly responsive. They finished ahead of schedule with no budget issues, and the internal response to the final designs has been very positive. Their attention to detail, professionalism, and ability to keep the process organized made them very easy to work with.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.9 4.9 (72)
    4.8 4.8 (76)

  • SlickDigital

    Propel Your Business Forward

    SlickDevs is a premier custom software development company specializing in transforming innovative ideas into robust, scalable applications. With a dedicated team of experts, we provide comprehensive solutions tailored to meet the unique needs of tech startups, mid-market companies, and enterprise...

    Top Services:

    • Mobile App Development
    • Software Development
    • Software Testing
    • Blockchain
    • IoT
    • Show more
    Location
    Bellevue, Washington
    Number of Employees
    50 - 99
    Average Hourly Rate
    $100/hr
    Portfolios Count
    5 Projects Listed

    SlickDigital Services

    • Mobile App Development
    • Software Development
    • Software Testing
    • Blockchain
    • IoT
    • Staff Augmentation
    • Cloud Consulting
    • Web Development
    • WordPress Website Design
    • UI/UX Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Oracle
    • Snap Inc.
    • Amazon
    • Palo Alto Networks
    • Airbnb
    • Miami-Dade County
    Data sourced from the agency's DesignRush profile
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  • Design In DC

    Verified Verified by the DesignRush team for authenticity and credibility.

    A Digital Agency For The Future

    Design in DC engineers native and cross-platform apps that power businesses through prototyping, UI/UX design, m-commerce development, backend API development, QA, App Store submission, and optimization. Its impressive client portfolio includes Under Armour, the World Bank, and Virginia Tech...

    Top Services:

    • Web Development
    • Web Design
    • UI/UX Design
    • Video Production
    • Logo Design
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    50 - 99
    Average Hourly Rate
    $160/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    11 Projects Listed

    Design In DC Services

    • Web Development
    • Web Design
    • UI/UX Design
    • Video Production
    • Logo Design
    • Graphic Design
    • Digital Marketing
    • Digital Services
    • Advertising
    • Product Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Consumer Bankers Association
    • Examit
    • Summit Ridge Energy
    • JFL Consulting
    • Lateenz
    • Solar Landscape
    • Warfel Construction
    • CiviClick
    • Priovant Therapeutics
    • Hilton
    Data sourced from the agency's DesignRush profile

    Design In DC Reviews & Testimonials

    • Mackenzie Shriner
      Mackenzie Shriner Owner at Distinctive Deck Designs
      4.8 ★

      Web Design Review from Mackenzie Shriner

      I contracted design in DC to build me a custom website. they were accommodating of my budget, very responsive, and gave good insight on layout, content and design. the process was very straightforward and the final product is great!

    • Jo Maney
      Jo Maney Principal at BGR Group
      5.0 ★

      Web Design Review from Jo Maney

      DDC has been an excellent partner since we engaged with them in 2023. The DDC team worked with us to completely redesign our website and work to provide ongoing digital marketing services. The DDC team has been responsive, proactive, and thorough with their work. They are also very transparent about how they operate and how much time special projects will require. We have referred DDC to several clients and partners thanks to their outstanding process and product. DDC is a very professional, creative, and well-organized team.

    • Sapna Doshi, Ph.D.
      Sapna Doshi, Ph.D. Owner at Mind Body Health LLC
      5.0 ★

      Web Design Review from Sapna Doshi, Ph.D.

      My experience working with Design in DC was incredible. Everyone was friendly, approachable, and seemed to genuinely care about helping create the best possible website for my business. They were also invested in making sure the process was one in which I enjoyed and felt taken care of. The regular meetings made me feel like I was a priority and that progress was continually being made. I so appreciated the attention to detail in regards to the user experience. The collaboration in understanding my wishes and desires for the website and user experience was met with patience and paying attention to detail on my behalf. Not only were they taking my suggestions but offering their own to help me maximize the potential of my website. The design and functionality is more than what I could have imagined. I know, undoubtedly, that the work that Design in DC did for me will help my business grow. After wasting money in years past on website designers, I was worried I'd be doing hte same here. I was wrong. I don't think I'll ever need to search for another website designer group again. I would recommend this group to anyone I know. Thank you, Design in DC! It was an absolute pleasure working with all of you!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.8 4.8 (10)
    5.0 5.0 (47)

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