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Top Mobile App Development Companies in Seattle

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Mobile App Development Companies
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Looking for the best mobile app development company in Seattle? UpCity compiles authentic reviews, company descriptions, project examples, and more into a list for you to review. Feel confident you're finding the top provider for your business.

UpCity offers objective, independent research and verified user reviews. We earn compensation from some providers who sign up for sponsored profiles. Learn more about our trusted providers.

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Provider's minimum per-project cost
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18 Provider(s)Last Updated: April 24, 2025
UpCity Silver Sponsor
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I'm the self-funding founder of Willowfinch and have been working with Lunarbyte for nearly 3 years. My app is a data intelligence app and so not quite as simple as a sales site. The algorithms are complex and other developers / orgs had quite a difficult time grasping the innerworkings. They have consistently worked within my limited budget and advised me on best practices. While I coded the back-end algorithms on the cloud platform & architecture I'm comfortable with, they accommodated that & created a seamless experience. Their pricing is reasonable and they work very hard to give me accurate quotes for work so we can prioritize. I love working with them.
Services
Software DevelopmentJava DevelopmentMobile App DevelopmentView all
Business Summary:
Best in class software and product development. We are a passionate, driven and talented team of developers based in Seattle, WA. We work with startups and enterprise companies to craft and launch big ideas.
Industry(s):
Business Services
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum per-project cost
$10,000 or more
Provider's minimum retainer cost
$5,000 or more, monthly
UpCity Silver Sponsor
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UpCity Engaged Partner icon
Overall experience with New Normal has been great. We started building an application for our new business in 2018 and have used them ever since because of their flexibility, and the "partnership" we've forged. Our company is still too small to manage/create/hire an internal software development dept, so NN continues to fit the bill.
Services
Software DevelopmentJava DevelopmentMobile App DevelopmentView all
Business Summary:
New Normal is your Seattle-based development and UX solution. We’ve delivered custom software for clients in eCommerce, aerospace, fin tech, travel, health care, and manufacturing. Let's talk about what you need to do.
Industry(s):
Finance | Government | SaaS | Restaurant | Real Estate | Non-Profit
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum per-project cost
$25,000 or more
Provider's minimum retainer cost
$5,000 or more, monthly
UpCity Silver Sponsor
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Services
Software DevelopmentWordPress DevelopmentMobile App DevelopmentView all
Business Summary:
Montana Banana designs and develops Internet strategies for corporate, e-commerce and entertainment based clients. We have offices in Seattle, WA and Los Angeles, CA but design products for clients around the world.
Industry(s):
SaaS | E-Commerce | Business Services
Business Details
Businesses provider works with
Small, Medium
Provider's minimum per-project cost
$5,000 or more
Provider's minimum retainer cost
Less than $500, monthly
UpCity Engaged Partner icon
UpCity National Excellence Award Winner - An illustration of a thropy with a star.
UpCity Local Excellence Award Winner - An illustration of a certificate.
Hands down the best digital marketing group that has helped our business grow and succeed. So I found them out through google searches and read each review and it called out my attention how they would respond. Going forward I contacted them in a panic after having tried myself to do my husbands hair salon marketing and failed. (We we’re a month away from loosing everything we had invested in; it was bad). I didn’t know what else to do and they have literally guided me through out the entire process. I was originally looking for google marketing services and have ended up doing everything with them. I have asked every stupid annoying desperate question out and around the book repeatedly and they have always been super nice, professional and re explained the process with me time and time again. I’ve been working with Laura and will continue to work with Laura because they are the ones who have helped our business grow and maintain from where we were. The services are outstanding. The results show and they know what their doing. They’re not here to rob you or make false claims about anything. They are extremely transparent with all work and communication and they will give you the honest of honest opinion of how things should be done. Thank you so much Laura for everything, this is for the long hall. Don’t even think twice and just call them. Yoj won’t be disappointed and your business will grow with them on your side. Thank you so so much 🙏
Services
WooCommerce DevelopmentReputation ManagementArtificial Intelligence(AI)View all
Business Summary:
Partner with 1111 Media Group and start generating more sales, leads, and revenue for your business. We're a Full-Service, Award-Winning Digital Marketing Agency specializing in growing businesses through web design, technology, social media, and ROI-driven marketing. Se habla español!
Industry(s):
Dental | Healthcare | Attorneys | Hospitality | Business Services
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum per-project cost
$1,000 or more
Provider's minimum retainer cost
$1,500 or more, monthly
UpCity Engaged Partner icon
UpCity National Excellence Award Winner - An illustration of a thropy with a star.
UpCity Local Excellence Award Winner - An illustration of a certificate.
After I retired from Nike in 2019, I started 6453 ALUMNI, a network for former Nike colleagues and retired Nike-sponsored athletes to connect from all over the world. Having worked at Nike with Matt Watson in the past, I was really interested in involving him and his agency in some of the events we were planning for 6453 ALUMNI. Watson quickly became experiential in our global sustainability organization. They were able to get people to understand that we needed to work as a team and come together to make our sustainability project possible. The innovation team, which was about creating the future of materials, was super involved from strategy to execution. It was done absolutely beautifully. Watson also helped bring our materials and innovation projects to life. They made a huge impact not only on our audience but also on our jobs as creators in sustainability. Through the visuals, through the copy. The way everything came together really showed the quality of creative and strategy Watson brings. Nike has a very high level of design integrity. They only hire the best of the best. So having a partner who knows what that looks and feels like, is like working with a friend. Matt has created an agency that is very aligned with that. He has been an important strategic thought-partner in creating our brand for Alumni. For these reasons, I highly recommend Watson Creative to anyone who is considering working with a creative agency.
Services
Commercial Video ProductionTwitter MarketingInstagram MarketingView all
Business Summary:
Our sights are set on strategy, design, storytelling, and creating an impact. Lifestyle brands to tech, startups to venture capitalists, professional services to professional sports—we dig down to build up.
Industry(s):
Attorneys | Construction | E-Commerce | Entertainment | Food/Beverage | Business Services
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum per-project cost
$10,000 or more
Provider's minimum retainer cost
$2,000 or more, monthly

Chop Dawg

Washington, DC, US
4.6 | 7 reviews
After reaching out to ChopDawg and some other shops, we knew Chop Dawg was the right choice for us because of their expertise, upfront pricing and timeline, and their clear communication style. We met every 2 weeks during the build via video conference as well as more frequent email communication. ChopDawg did a great job of explaining the process and informing us of complications they could see before they started developing the product. Their technical knowledge combined with a true desire to understand our product and how best to build it was a real selling point. They have been great to work with during the build process and we are happy with our product. We would highly recommend them and look forward to working with them in the future.
Services
WooCommerce DevelopmentAndroid App DevelopmentSoftware DevelopmentView all
Business Summary:
Since 2009, we've helped launch 350+ next-generation apps for startups, first-time entrepreneurs, growing companies, and non-profits around the world. When it comes to working with Chop Dawg, Think Partner, Not Agency.
Industry(s):
Business Services | E-Commerce | Education | Entertainment | Fitness | Startups
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum per-project cost
$10,000 or more
Provider's minimum retainer cost
$5,000 or more, monthly
UpCity Local Excellence Award Winner - An illustration of a certificate.
Bonsai was an excellent partner. As they built our brand digitally, they partnered with us every step of the way. The collaboration led to great results that created our digital footprint and kicked off the growth phase.
Services
SEOVideo ProductionPPCView all
Business Summary:
Bonsai Media Group is a clan of designers, developers, and marketing ninjas. We stealthily navigate complex codes, design strategy, and search engine algorithms to provide clients with a web site that kicks ass, gets noticed, and drives business.
Industry(s):
Healthcare | Retail | Business Services | Real Estate | Finance
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum per-project cost
$5,000 or more
Provider's minimum retainer cost
$1,500 or more, monthly
UpCity Engaged Partner icon
I have been working with Sandcastle since 2015. They have been an excellent partner in the development, management and ongoing refinement of a mobile app platform - including the native app as well as the admin tool used to manage it. The entire Sandcastle team are knowledgeable, responsive and generally a true pleasure to work with.
Services
Mobile App DevelopmentiOS App DevelopmentAndroid App DevelopmentView all
Business Summary:
Sandcastle Web Design & Development is a full-service web design & development agency with a wealth of technical experience and a personalized approach to each project. We have 2+ decades of experience in web design, e-commerce, custom application development, mobile apps and digital marketing.
Industry(s):
Business Services | E-Commerce | Entertainment | Finance | Food/Beverage | Industrial
Business Details
Businesses provider works with
Small, Medium
Provider's minimum per-project cost
$5,000 or more
Provider's minimum retainer cost
Less than $500, monthly

9series Inc

Bellevue, WA, US
Services
Mobile App DevelopmentWebsite DevelopmentWooCommerce Development
Business Summary:
We provide our clients with handcrafted solutions using the latest technologies. We have worked with the top-notch clients & companies in various sectors such as: Travel & Hospitality Education Healthcare Automotive Banking & Finance Real Estate E-commerce Event & Conference.
Industry(s):
Healthcare | Education | E-Commerce | Business Services | SaaS | Startups
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum per-project cost
$2,500 or more
Provider's minimum retainer cost
$2,000 or more, monthly

HyperBeans

Newcastle, WA, US
Services
Java DevelopmentMobile App DevelopmentWebsite DevelopmentView all
Business Summary:
We provide innovative, highly functional, visually appealing, and user-friendly web, mobile applications, ERP's as well as digital marketing solutions that drive organizational growth and make your brand a success.
Industry(s):
E-Commerce | Education | Fitness | Healthcare | Hospitality | Startups
Business Details
Businesses provider works with
Small, Enterprise
Provider's minimum per-project cost
$2,500 or more
Provider's minimum retainer cost
Less than $500, monthly

AccelOne

Kirkland, WA, US
Services
Mobile App Development
Business Summary:
AccelOne is a nearshore software development company and staff augmentation agency. Our team of senior-level, dedicated developers, designers, and project managers are committed to ensuring top quality results, that arrive on-time and on budget.
Industry(s):
Industrial | Healthcare | Finance | Entertainment | E-Commerce | Business Services
Business Details
Businesses provider works with
Medium, Enterprise
Provider's minimum per-project cost
Less than $1,000
Provider's minimum retainer cost
$500 or more, monthly

Inventive Mobile

Issaquah, WA, US
Services
Mobile App Development
Business Summary:
Inventive Mobile, Inc. is a mobile app development company based in the Seattle area that specializes in the development of Android and iOS apps. Since 2010, we have developed over 30 apps that have been downloaded 100MM+ times on Google Play and the App Store.
Industry(s):
Business Services
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum retainer cost
Less than $500, monthly

TechValens

Bellevue, WA, US
Services
Mobile App DevelopmentDrupal DevelopmentWebsite Development
Business Summary:
TechValens is recognized with the word ‘perfection’. We walk towards our goals with a dedicated and strategic approach to provide our clients with the best in the industry services. Our technical knowledge and experience when combined to customize the ideas of our clients.
Industry(s):
Retail | Home Services | Healthcare | Food/Beverage | Entertainment | Dental
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum retainer cost
$500 or more, monthly
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Fresh Consulting

Bellevue, WA, US
Services
Software DevelopmentMobile App DevelopmentUX DesignView all
Business Summary:
UX design, full stack development, and team integration for websites, web apps, mobile apps, and enterprise systems.
Industry(s):
Business Services
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Audivelo

Seattle, WA, US
Services
Mobile App DevelopmentUX Design
Business Summary:
Audivelo is a Seattle based creative studio specializing in building websites for architects, small beverage companies, and startups using the Webflow and WordPress platforms.
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