Our expert analysts researched and ranked the leading United States iPhone app development companies that build customer-centric applications that engage and convert users into paying customers. Use our practical tool to filter listings by budget, size and reviews and select the best partner for your business needs.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

Leanware
VerifiedVerified by the DesignRush team for authenticity and credibility.Boutique Software Development Company
We created Leanware to deliver exceptional results through nearshore teams that excel in App Development. Our creative excellence drives outstanding performance in digital product creation, blending AI-enhanced expertise with cost-efficient, battle-tested solutions trusted by 20+ clients across 15+...
Top Services:
- Software Development
- Mobile App Development
- AI Development
- Software Testing
- Staff Augmentation
- Show more
- Location
- Miami, Florida
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 7 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsLeanware Services
Data sourced from the agency's DesignRush profile2Moon Capital BackupTyping Blueback Global
Leanware Reviews & Testimonials

AI Development Review from Julia Antoci
Leanware built the mobile MVP of our AI fitness assistant for iOS and Android. It started with discovery workshops that sharpened the product vision and shaped an MVP roadmap prioritizing launch features while leaving room for expansions like avatars and real-time feedback. They developed a conversational AI engine with custom prompt and context engineering tailored to fitness conversations, one that keeps continuity across sessions, remembers user progress and preferences, and keeps health guidance within safety standards. On top of that they implemented photo-based food recognition, smart search that understands fitness intent, personalized recommendations, progress tracking with AI-generated insights and coaching suggestions, and gamified response formats that make AI answers easy to read, plus the scalable backend behind it all. Their consultation saved us an estimated 20 to 30 percent in costs by avoiding unnecessary complexity, and we launched a functional MVP across the app stores in under eight weeks, faster than planned. Project management was exceptional: clear timelines, on-schedule delivery, and proactive communication via Slack, with expert recommendations guiding decisions rather than every choice being pushed back to us. Their technical skill and creativity made the whole thing feel less like hiring a vendor and more like building with a co-founder.

Software Development Review from Anonymous
Leanware delivered two significant projects for our e-commerce platform along with a steady stream of smaller fixes and enhancements. They built a new employee management page in our back office so our customers can create accounts, set permissions, and link employees to entities on their own, and when our mobile app's chat functionality needed replicating in the back office, they built a custom chat and messaging React library from scratch, integrated seamlessly with our design system and existing bespoke solution. Along the way they worked comfortably across Next.js, React, React Native, Apollo, GraphQL, and Hasura, and adapted to our implicit conventions. We ran week-long SCRUM sprints with check-ins three times a week, and they consistently hit the sprint goals on time; even when we needed hard pivots mid-sprint, they adapted without losing pace. As the engagement progressed they increasingly took the lead, asking well-informed questions and offering suggestions on code, product, and design that genuinely enriched the outcomes. What impressed us most was how swiftly they onboarded: given incomplete product descriptions, they asked the right questions to fill the gaps and picked up our undocumented code patterns without getting stuck on minor details. It felt like one cohesive team working toward shared objectives, free of the friction that usually comes with a third party

Mobile App Development Review from Anonymous
Leanware has partnered with us since Q4 2023 on two cloud-based mobile apps for iOS and Android, one built in Flutter and one in React Native, handling development on both and the UI/UX design on one. For one project they staffed a team of five mid-level developers, a senior developer, an architect, and a UX designer available as needed. They also took over an app that was unstable and nowhere near production-ready and turned it into a stable, solid product I'm genuinely proud to show. Their processes leave nothing to chance and the code that comes out of them is excellent; they've been flexible and thorough throughout. They meet deadlines, keep their promises, and are careful about what they commit to. The whole team has been great, and Alvaro, their Technical Product Manager, deserves a special mention for being remarkable. I hired them because they were upfront about what they could and couldn't do, and that honesty, together with the tremendous quality of their work, is what separates them from other providers. Both are getting harder to find these days.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWezom offers custom software development services, providing solutions that address business challenges, meet market demands, enhance internal operations, and stay up-to-date with the latest technologies...
Top Services:
- IT Services
- Software Development
- Mobile App Development
- Web Design
- eCommerce Development
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 27 Projects Listed
Kodevent is a US-based software company providing top AI developers and custom solutions built with GPT-4, Claude, Gemini, and LLaMA. We deliver intelligent software to help you launch, grow, and accelerate your businessfocusing on clear communication and lasting partnerships...
Top Services:
- AI Development
- Web Development
- Staff Augmentation
- Software Testing
- Software Development
- Show more
- Location
- Sheridan, Wyoming
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
Founded in 2009 by Nacho de Marco and Paul AzorÃn, BairesDev provides top 1% tech talent to a range of clients, from startups to Fortune 500 companies...
Top Services:
- Software Development
- Web Development
- UI/UX Design
- Mobile App Development
- Software Testing
- Show more
- Location
- San Francisco, California
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 5 Projects Listed
VT Netzwelt builds AI solutions, mobile apps, ecommerce platforms, and custom software. Since 2013, we've delivered 700+ projects for 270+ clients across mobility, healthcare, and industrial IoT. Book a free consultation today!...
Top Services:
- Software Development
- eCommerce Development
- Web Development
- Mobile App Development
- IT Services
- Show more
- Location
- New York City, New York
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 20 Projects Listed
Leveraging 30 years of excellence designing, developing, deploying and supporting world-class software solutions, Kanda Software has established itself as a trusted Software Development, Cloud Engineering, DevOps and QA partner for companies ranging from innovative startups to large enterprises...
Top Services:
- Software Development
- Mobile App Development
- IT Services
- IoT
- VR/AR
- Show more
- Location
- Boston, Massachusetts
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 16 Projects Listed
We've delivered 300+ software solutions for American companies of all sizes, from emerging startups to Fortune 200 companies in many domains: healthcare, FinTech, automotive, energy management, real estate, education, e-commerce, and others...
Top Services:
- Software Development
- Mobile App Development
- DevOps Consulting
- AI Development
- Show more
- Location
- Austin, Texas
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 12 Projects Listed
Matellio is a leading software engineering studio, recognized globally for delivering intelligent solutions powered by Artificial Intelligence and Machine Learning. We specialize in developing customized AI solutions tailored to various needs of businesses under different industry verticals...
Top Services:
- AI Development
- IoT
- DevOps Consulting
- Cloud Consulting
- Mobile App Development
- Show more
- Location
- Denver, Colorado
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 26 Projects Listed
We at Inventix believe in enhancing the world through app-driven experiences...
Top Services:
- Web Development
- Mobile App Development
- Software Development
- WordPress Website Design
- eCommerce Development
- Show more
- Location
- New York City, New York
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 18 Projects Listed
Geniusee is a U.S.-based AI and software engineering company with delivery hubs in Ukraine and Poland. We help businesses modernize legacy systems and scale faster through AI-powered, cloud-native solutions. Our team of 300+ experts has delivered 200+ projects for clients like Dell and Bloomberg. We...
Top Services:
- Software Development
- Mobile App Development
- Blockchain
- Software Testing
- AI Development
- Show more
- Location
- Austin, Texas
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 11 Projects Listed
CodeStringers helps growth-stage and small-to-mid-market companies implement, integrate, and operate Zoho-centered digital enablement solutions by combining senior executive consulting, cost-effective delivery teams, and custom software capabilities when needed...
Top Services:
- Software Development
- AI Development
- Web Development
- CRM Consulting
- ERP Consulting
- Show more
- Location
- Santa Cruz, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $50,000 & Up
Uptown Logo Design is a prestigious logo design company with a decade of experience in crafting captivating brand identities. Our comprehensive branding solutions include logo design, web development, and more. We aim to tell your brand's story, stimulate growth, and forge profitable connections...
Top Services:
- Web Design
- Logo Design
- Branding
- Web Development
- eCommerce Development
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 5 Projects Listed
ThinkUp is a quality-obsessed digital product development company specializing in mobile apps and unique user experiences. We create world-class digital products and exceptional mobile experiences for startups, unicorns, and organizations such as dLocal, AstroPay, Itau Bank, OCA, and Bodhi...
Top Services:
- Mobile App Development
- UI/UX Design
- Location
- Minneapolis, Minnesota
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 9 Projects Listed
AI-first custom software, AI and IT services firm in McLean, VA and North Bethesda, MD, serving enterprise and government. SBA-certified EDWOSB and WOSB, CAGE 9RX92. A senior Sthenos team is accountable on every engagement, and we build a free clickable prototype before you commit...
Top Services:
- Software Development
- AI Development
- Staff Augmentation
- Mobile App Development
- Cloud Consulting
- Show more
- Location
- McLean, Virginia
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 23 Projects Listed
NineTwoThree AI Studio is a Boston-based AI agency that builds secure, production-grade AI and ML solutions with measurable ROI. Founded in 2012, our Ph.D.-level engineers and certified product managers have delivered 150+ projects for enterprise brands and startups alike...
Top Services:
- AI Development
- Mobile App Development
- IoT
- Software Development
- DevOps Consulting
- Show more
- Location
- Danvers, Massachusetts
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $99/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 5 Projects Listed
We deliver efficient, and functional apps that address immediate challenges, empower teams, and set the foundation for future growth...
Top Services:
- Mobile App Development
- Software Development
- UI/UX Design
- Location
- Orlando, Florida
- Number of Employees
- 50 - 99
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 4 Projects Listed
Appstem is a full-service mobile strategy, design and development agency, Based in San Francisco, Appstem has delivered over 200 apps with a team of experts specializing in strategy, QA, development and UI/UX design...
Top Services:
- Web Design
- eCommerce Development
- IoT
- Mobile App Development
- Software Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 5 Projects Listed
Utility is a premier digital product agency specializing in custom mobile apps, web platforms, and AI-powered solutions for forward-thinking startups and global brands including Airbnb, Coca-Cola, Samsung, the NBA, and Forbes...
Top Services:
- Mobile App Development
- AI Development
- Software Development
- WordPress Website Design
- UI/UX Design
- Show more
- Location
- New York City, New York
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $149/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 1 Project Listed
In order to design, create, publish, maintain, and advertise mobile apps, we employ smart and resourceful ways. We provide premium mobile app development solutions tailored to your needs, especially given the fiercely competitive Dubai industry...
Top Services:
- Mobile App Development
- Location
- Morton Grove, Illinois
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $50,000 & Up
Montenegro Systems builds custom software and AI solutions for startups, growing businesses, and enterprises. We deliver end-to-end products and outsourced development teams, with a focus on construction, transportation, and real estate...
Top Services:
- Software Development
- AI Development
- Mobile App Development
- Staff Augmentation
- Managed Services
- Show more
- Location
- San Diego, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $50,000 & Up
Persistent Systems, a renowned global leader in software product development and technology services. Delve into our innovative offerings to stay ahead in the ever-evolving landscape of technology...
Top Services:
- AI Development
- Software Development
- Web Development
- Mobile App Development
- Blockchain
- Show more
- Location
- Santa Clara, California
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $50,000 & Up
iPhone App Development Companies by City
Related Mobile App Development Specializations in the US
- Android
- Application Modernization
- Consumer
- Cross-Platform
- eCommerce
- Educational
- Enterprise
- Financial
- Fitness App Development
- Games
- Government
- Healthcare
- HTML5
- iPad
- Mobile App design
- Publishing
- React Native
- Small Businesses App Development
- Social Network Apps
- Sports App Development
- Startup
- Travel App Development
- Wearables
- Windows
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