IOS App Development Companies in Seattle

Discover top-rated Seattle iOS app development agencies. Expert-vetted teams, verified portfolios & client reviews. Start building your dream app today.

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All iOS App Development Agencies in Seattle

Designli logo

Designli

Verified

Building apps is hard... when you're distracted.

When hiring an app or web development team to build custom software, one variable matters most: are the developers fully dedicated to your success, or are you one client of many?

Designli brings together designers, engineers, and business minds into on-demand, dedicated product teams that pour themselves, full-time, into the success of your app or web-app initiative.

Existing as your dedicated software engineering department, we'll work together to solve your most pressing business problems with custom software.

How it Works, and What We Can Build:

  • Designli designs, develops, and launches beautiful apps and web-apps that you'll be proud to own, with a process that makes sense.
  • Most importantly, we'll do this with a team that is assigned full-time to your project.
  • With a step-by-step process, we'll begin by creating a clickable simulation of the User Interface of your app or website, and a development-ready backlog with each feature defined, estimated, and ready to code.
  • Entrepreneurs use this output for fundraising. Business leaders use it for internal buy-in and market validation.
  • When you choose to move into Development, our staff will be assigned full-time to you, and this team will be composed of the disciplines you need.
  • Left alone, designers will create art projects. Engineers will create science fair gizmos. Business minds will create spreadsheets. Your development team will include all three, singularly focused on your success.

For more information and to see our extensive work portfolio, visit https://designli.co

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5.0 (16 review)
50 employees
Greenville, United States
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SUBE AGENCIA DIGITAL logo

SUBE AGENCIA DIGITAL

Verified

At SUBE, we focus on satisfying business needs

We are a 360° digital agency with almost 10 years of experience committed to ensuring that our services and adaptability to change allow our clients to obtain the best ROI.

Some of our services:

  • Creativity: Social content, identity, conceptualization, influencers.
  • Performance: PPC & CPM, SEO & ORM, programmatic, social listening.
  • Development: Web, e-commerce and CRO.

Some brands that have trusted us:

  • Holiday In
  • La Salle
  • Skrill
  • Volkswagen
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4.9 (2 review)
100 employees
Mexico City, Mexico
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Zazz logo

Zazz

Verified

Modern IT. Built Secure. Delivered Right.

Zazz is a trusted software engineering and IT services partner helping enterprises deliver secure, scalable, and high-impact technology initiatives. We specialize in solving complex enterprise challenges - legacy bottlenecks, technical debt, talent shortages, compliance risks, and system fragmentation - so our clients can move faster, scale smarter, and innovate with confidence.

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5.0 (1 review)
250 employees
Seattle, United States
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Bits Orchestra logo

Bits Orchestra

Verified

Software symphony for your business growth🚀

Bits Orchestra is a web and mobile development company with over 10 years of experience as a trusted tech partner for companies across the US, Europe, and Australia. We combine deep technical expertise with a strong commitment to understanding each client’s unique goals.

Our team of 50+ developers has delivered more than 100 projects for companies in the US, Europe, and Australia - ranging from small businesses to growing mid-sized organizations. Our clients include Shaw Industries (manufacturing), KONI (manufacturing), the Harold Grinspoon Foundation (non-profit), and over 50 other organizations across industries like education, digital services, and retail.

Our approach is simple: we listen, we understand, and we deliver. We always aim to deliver cost-efficient solutions that provide real, measurable value.

From building new websites from the ground up to platform upgrades, we focus on turning your vision into solid, working digital solutions.

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5.0 (3 review)
50 employees
Orlando, United States
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Dot Com Development logo

Dot Com Development

Verified

On Time ... On Budget ... Solutions Exceeding Expectation

Dot Com Development is a trusted🤝 and awarded🏆design and development technology company providing custom solutions for companies of all sizes and industries. We provide end to end application planning, design, development, testing and support services with expertise in the latest cutting edge, high performing, and future proof technologies. We’ll get your digital product to market 30% faster than our competitors, improve development costs by up to 40% and create user experiences that get 5x-10x more user engagement.

Our services include:

✅ Strategic Planning and Consulting

✅ UX/UI Design

✅ Prototyping and POC's

✅ Web Application Development

✅ Website Design and Development

✅ Mobile Application Development

✅ Artificial Intelligence Development

✅ eCommerce Development

✅ API Development and Integration

✅ Data and Analytics

✅ Cloud Development

✅ CRM / ERP Development

✅ DevOps / Cloud Services

✅ Support and Maintenance

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5.0 (10 review)
40 employees
Scottsdale, United States
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Probey Services logo

Probey Services

Verified

World’s #1 Rated & Reviewed App & Web Development Partner

World’s #1 Rated & Reviewed App & Web Development Partner, Probey Services is a renowned IT and digital solutions provider, powering innovation for startups, SMEs, and growing organizations worldwide. Headquartered in London, UK, with a strong presence in India and 11 global branches, we combine global reach with deep technical expertise.

Our 320+ specialists have successfully delivered 1900+ projects over the last 10+ years, helping businesses scale with mobile app development, website design & development, enterprise software solutions, AI-powered digital marketing, branding, and social media management.

We proudly serve 30+ industries including retail, e-commerce, healthcare, fintech, education, travel, logistics, luxury, and more.

Probey Services is rated as the #1 Tech Partner globally on Clutch, GoodFirms, and Trustpilot, we stand out for our system-driven execution, advanced tech stack, and client-first approach.

Our Services:

We deliver end-to-end digital solutions that don’t just work, they win.

  • Mobile Apps – iOS & Android (React Native, Flutter, Kotlin, Swift, Java).
  • Websites – Fast, stunning, conversion-driven (Shopify, WordPress, Magento, Joomla, Wix, Umbraco).
  • Custom Software – ERP, CRM, SaaS, and cloud platforms (React, Node.js, Angular, .NET, Python, PHP, Ruby, Java).
  • Digital Marketing – AI-powered SEO, PPC, and performance campaigns (SEMrush, Ahrefs, Moz, Google Ads, Analytics).
  • Branding – Logos, identity kits, merchandise, collaterals (Figma, Adobe Suite, CorelDRAW).
  • Social Media – Strategy, UGC/CGC, influencer collabs (Instagram, LinkedIn, YouTube, Pinterest).

Awards & Recognition:

  • Proudly recognized worldwide:
  • Top Mobile App Development Company – Clutch (2025)
  • Best Web & Design Agency – DesignRush (2024)
  • Global Leader – GoodFirms (2024)
  • Top 10 IT Companies – G2 (2024)
  • Excellence in Digital Innovation – AppFutura (2024)
  • Clutch Global & Champion Badge (2023 & 2024)
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5.0 (132 review)
1000 employees
New York, United States
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Fulminous Software logo

Fulminous Software

Verified

WE LOVE TO BUILD ASK FOR IT AND HAVE IT

We are Fulminous Software, a skilled web and mobile app development company with a proven history of creating popular and profitable apps. We're known for our knack for enhancing existing apps and websites to make them even better, ensuring people keep downloading and enjoying them. Our dedicated team is here to turn your ideas into reality.

The company’s biggest strength is its team which I a mix of most ingenious and focused individuals who are adroit in whatever they do. They believe in delivering flawless and reliable solutions to clients that match business needs and drive business growth. We are looking for strategic partnerships from around the globe. If you are interested please contact us today.

Client's Feedback About US:

https://clutch.co/profile/fulminous-software-private#highlights

https://www.bark.com/en/in/company/fulminous-software-private-limited/9AKJO/

Our Key services:

* Custom Software development

* Mobile App Development (Android App, iPhone App, Cross-Platform App)

* Custom Game Development (AR, VR, iOS, Android, NFT, Metaverse, 2D, 3D)

* Salesforce Development (Lightning, Implementation, Consulting)

* Web Development

* Mobile Game Development

* Desktop Game Development

* Xamarin App Development

* Wearable Devices App Development

* Enterprise App Development

* CRM & ERP Development

* Digital Marketing

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5.0 (37 review)
124 employees
Clarendon County, United States
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Design Vertices LLC logo

Design Vertices LLC

Verified

Empowering Your Digital Journey with Comprehensive Solutions

At Design Vertices, we specialize in Web development, Logo Design, Mobile App Development, SEO, SMM, Video Animation and branding across the USA to elevate your business.

5.0 (6 review)
10 employees
Sheridan, United States
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Uinno logo

Uinno

Verified

We build products like we own them.

Uinno is a product development agency compiled of engineers and technology experts with an ownership mindset who are solely focused on solving business challenges via creating future-ready apps, websites, and digital solutions.

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1.0 (0 review)
60 employees
Tallinn, Estonia
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vareweb logo

vareweb

Verified

"Magically Designed Website"

Mark Your Digital Visibility Through the Power Of Our "Magically Designed Website"

Kick start your dream with our magically designed website, a valuable investment that promises lasting benefits. As your business flourishes, so does your digital identity and to keep it ahead of the race, trust our designer’s magical expertise to achieve your business goals from our spectrum of designing website UI, logos, infographics, banners, brochures, social media posts and much more. This is the time to activate your digital presence through the power of captivating designs to boost your digital persona and fascinate your clientele.

Personalized Designs

We appreciate your concise input to empower your business niche with personalized designs that meet your main visual requirements, effectively targeting your audience with a lasting impact.

Result Driven Designs

Our mission goes beyond mere satisfaction; we are dedicated to building an empire for your brand through the magical touch of our designers. Our goal is to not only meet your expectations but also to exponentially drive your Return on Investment (ROI) to new heights.

Multiple Design Concepts

Get multiple design concepts through the magic of our designer's artistic hands within a day's deadline. Each concept will be meticulously crafted to perfection, ensuring attention to detail down to each pixel.

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5.0 (5 review)
15 employees
Dallas, United States
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Scopic Software & Scopic Studios (Marketing Agency) logo

Scopic Software & Scopic Studios (Marketing Agency)

Verified

🚀 Your Cost-effective, Cross-continental, Digital Innovation Partner

Unlock the full potential of your business with Scopic and Scopic Studios — sister companies combining the power of innovative software development with strategic digital marketing.

Scopic delivers cutting-edge custom solutions across web, mobile, desktop, and cross-platform technologies. Together with our digital marketing division, Scopic Studios, we offer a unique end-to-end approach: from ideation and development to growth-focused promotion and lead generation.

With over 1,000 products launched and deep specialization in B2B, SaaS, healthcare, and technology brands — and more, we cover the full product lifecycle helping you scale smarter, faster, and profitably.

From launching new digital products to scaling established brands, our mission is simple: maximize your return on investment by building exceptional solutions and ensuring they reach, convert, and retain the right audience.

Why Work With Us:

✔ Over 1,000 Digital Products Built – Proven experience across industries and platforms

✔ Custom Software Solutions – Tailored development with AI, cloud, and cross-platform expertise

✔ Full-Funnel Marketing Strategies – SEO, Google Ads, Social Media, Content Marketing, and Lead Generation

✔ Creative Design Services – Engaging, user-centered design that drives impact

✔ From Code to Conversion – We don’t just build, we market, grow, and scale your product

Certified and Trusted Across Platforms:

🚀 Google Certified Partner

🚀 HubSpot Certified Specialists

🚀 Semrush Certified Experts

🚀 AWS Advanced Tier Partner

🚀 Google Cloud Partner

Our international team holds recognized certifications from industry-leading platforms and partners, ensuring your campaigns, products, and digital presence are managed with cutting-edge expertise and global best practices.

Our Origin Story:

Scopic Studios began as an in-house service within Scopic Software, supporting the launch and growth of hundreds of digital products. As our marketing expertise expanded, we evolved into a standalone brand — now working side by side with Scopic as a sister company, providing full-service digital marketing while staying deeply integrated with the software world.

Together, we cover the complete product lifecycle: from strategy, design, and development to market outreach, user acquisition, and brand visibility.

📍 Find us on Clutch: With more than 40+ 5-star reviews ⭐⭐⭐⭐⭐ on https://clutch.co/profile/scopic-software

🌍 Explore our marketing division: https://scopicstudios.com

Find us on Guru: 100% positive feedback 🌟 on https://www.guru.com/freelancers/scopic-software

We offer free consultations/audits and estimates so feel free to reach out and we'll connect you to an expert!

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5.0 (4 review)
280 employees
Boston, United States
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Gols Inc. logo

Gols Inc.

GO WITH GOLS!

IT consulting and staffing company providing software development, iOS and Android development, and enterprise solutions.
1.0 (0 review)
4 employees
Seattle, United States
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8 Circuit Studios logo

8 Circuit Studios

8 Circuit Studios is a small video game studio and the developer of the video game Project Genesis.
1.0 (0 review)
14 employees
Seattle, United States
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SociiLabs LLC logo

SociiLabs LLC

Verified

Solving big problems with even bigger brains (and AI).

At Sociilabs, we harness the power of artificial intelligence to deliver innovative solutions tailored to address the challenges of today's dynamic business landscape. Our commitment is to empower organizations with cutting-edge technologies that drive efficiency, enhance decision-making, and foster growth.

With a blend of AI expertise and industry insights, we collaborate closely with our clients to design and implement solutions that not only meet their immediate needs but also pave the way for future opportunities. Whether it's optimizing operations, improving customer engagement, or unlocking new revenue streams, Sociilabs is your trusted partner for transformative AI solutions.

Join us on our journey to redefine what's possible with AI and make a lasting impact on businesses and communities worldwide. Connect with us to explore how we can help your organization thrive in the age of AI.

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1.0 (0 review)
9 employees
Sheridan, United States
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TechMagic logo

TechMagic

Verified

Your AI-powered partner for digital excellence in Healthcare and Cybersecurity

Welcome to TechMagic - a full-cycle development company with strong Healthtech and Cybersecurity expertise that provides end-to-end software development services to businesses of different sizes.

With a proven track record of 200+ successful projects, 11 years on the market, and 400 experts onboard, TechMagic is your trusted product development partner.

Our backend skillset includes Node.js, Nest.js, Java, .Net, PHP, and Python. On the frontend side, we work extensively with Next.js, React, React Native, Angular, Vue.js, etc. From the infrastructure perspective, we mainly go for AWS. However, we have projects in the GCP and Azure spaces as well. With a deep understanding of the critical importance of cybersecurity in today's technology-driven world, we also provide specialized security services.

Our services:

- AI Development

- Discovery Phase

- UX/UI Design

- Web Development

- Mobile Development

- Cloud Consulting

- Test Automation

- Cybersecurity

- CTO as a Service

- Salesforce Development and Integration

We deliver software products from concept to deployment or enforce existing ones. By working with TechMagic, you unlock the full potential of technology for your business.

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1.0 (0 review)
400 employees
Lviv, Ukraine
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Jaytech Designs logo

Jaytech Designs

Based out of Seattle Washington, we specialize in designing business website solutions. Regardless of the size of your project, we will work diligently with you to bring your vision to life. We passionately create clean, responsive, mobile-friendly websites. JAYTECH will work with you through every step of the process from the ground up. By utilizing responsive web design techniques, we will get your website ready for display on any screen size including tablets and smart phones. Our websites are also created with the latest search engine best practices in mind. That way, your business will flourish on Google, Bing, Yahoo, as well as most other search engines. We also offer many options to support your website once it is live. Contact us today for a free quote.
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1.0 (0 review)
1 employee
Lake Forest Park, United States
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sympli.io logo

sympli.io

Design, develop and ship faster with Sympli.

Design handoff, review, implementation, and collaboration for web and mobile product teams. Sympli works with Figma, Sketch, Adobe XD, Xcode and more.
1.0 (0 review)
4 employees
Washington, United States
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The best iOS App Development Companies in Seattle