Top Mobile App Agencies in the United States

Which one is the best for your company?

Takes 3 min. 100% free

Mobile App United States

2526 agencies

Search location

Ratings

Budget

Top Featured Mobile App Agencies

TRIARE
4.9
(11 reviews)
TRIARE unlocks IT potential of YOUR business
TRIARE is a WEB and MOBILE software development company based in Europe. We are delighted to offer our services as your long-term partner, taking all technical matters off your shoulders and allowing you to focus on your business development. YOU WILL GET: ✔ In-house team . Work with a dedicated team that is 100% focused on your product and located in the same office. ✔ Efficiency & transparency , as our process is based on Scrum methodology and managed by certified Scrum Masters. ✔ Fast result. Working with us, you will get the first result in 1 week. ✔ High quality, as TRIARE has well-established processes of software development and experienced specialists. ✔ Full cycle development . Our company covers all stages of development, handling everything from Discovery and prototyping to Design, development, and maintenance. ✔ IP rights . From the very beginning, you are the only owner of the intellectual property of your project materials: source code, design, documentation, etc. ✔ Warranty period will be provided for your system for free. ASPECTS OF OUR MINDSET: - Focused on results. We are focused on the result of your business with an understanding of the real goals and KPIs that our team should achieve. - Solution Provider. It means that we always come to you with solutions, not with questions. We take all technical aspects of the project off your shoulders, allowing you to focus on the marketing and business strategies. - We go the extra mile. Being a proactive company, we always think and take a step ahead. TECHNOLOGIES WE USE: - Mobile app development: Kotlin, Java, Swift, Objective-C. - Cross-platform development: Flutter, React Native. - Web frameworks: Node.JS, React.JS, PHP, Ruby on Rails.
20 works in Mobile App
Located in Fairfax, United States (+3)
From €10,000 for Mobile App
Worked in Hospitals & Healthcare (+20)
Speaks English, Ukrainian
51-200 members
Sidekick Interactive
4.9
(6 reviews)
The Leading Mobile App Development Agency in Canada Servicing clients in the USA and Canada.
Highly recommended
Top awarded
Why Sidekick Interactive? We Build With You, Not Just For You. 15+ years of mobile app expertise 50,000+ hours of mobile and web application development delivered Montreal-based and led team. We have 75%+ senior developers. Long-term collaborations across our client base, not one-off builds. Agile project management: on time, on budget. Secure, scalable, and maintainable code. Rigorous QA by our testers for flawless launches Transparent, pay-for-what-you-need billing What we offer : Mobile app development: native mobile app (iOS & Android), hybrid mobile app, custom mobile app. Custom software development and web application : for startups, SMEs, entreprises Firmware-adjacent mobile engineering: built alongside your hardware team Backend and API Development: the APIs, integrations, and data layer your apps run on. Connected device apps: BLE pairing, reconnection, provisioning, offline-first sync Code rescue: abandoned codebases, AI-generated prototypes that stalled, departed vendors Code migration: Objective-C to Swift, Java to Kotlin Sidekick Maintenance: proactive maintenance, updates, and support Hire a Talent: hire vetted iOS, Android, React Native, and Flutter developers and embed them directly in your team. Some Industries we know deeply: SaaS Apps EV Charging Apps GIS IoT Manufacturing Apps MedTech Apps Mental Health Apps Music Apps Aerospace Construction Orthotics and Prosthetics Startups Our expertise includes: iOS: Swift, Objective-C, Core Bluetooth, External Accessory, ARKit Android: Kotlin, Java, Android BLE stack, foreground services Hybrid: React Native, Flutter, Kotlin Multiplatform Hardware integration: Bluetooth Low Energy, provisioning, OTA firmware pipelines Backend and cloud: REST, GraphQL, MQTT, offline-first sync QA and release management by in-house testers 3D-Sidekick, our own proprietary 3D scanning product for O&P professionals
10 works in Mobile App
Located in Montreal, Canada
From €10,000 for Mobile App
Worked in Energy & Oil (+9)
Speaks English, French
11-50 members
Mind Studios
5
(4 reviews)
Long-Term Technology Partner for Growth-Stage and Mid-Market Companies
Recommended
Founded in 2013, Mind Studios is a custom software development company working with growth-stage and mid-market businesses across the US, UK, Europe, and MENA. The portfolio spans logistics platforms, real estate marketplaces, healthcare systems, and fitness ecosystems - operationally critical products built for companies where technology is central to how the business runs. The team engages at the architecture stage, before the critical decisions get locked in. Business analysis, technical scoping, and honest pushback on briefs that won't hold up at scale are standard. The goal from day one is a system that doesn't need to be rebuilt in two years. What distinguishes Mind Studios is what happens after launch. Scaling infrastructure, iterating on features, extending systems as the business grows - this is where most of the value gets built, and where long-term client relationships form. The average engagement runs over two and a half years. Many go considerably longer. 100+ specialists. 13 years in business. 70% client retention rate.
6 works in Mobile App
Located in Mantua, United States (+3)
From €20,000 for Mobile App
Worked in Logistics & Supply Chain (+5)
Speaks English, Ukrainian
51-200 members
Trendlix Digital Marketing Agency
5
(15 reviews)
Custom Digital Marketing Solutions According to Your Business Needs and Market Demand.
Recommended
Trendlix Digital Marketing Agency delivers custom digital marketing solutions tailored to your business needs. Our digital marketing services include SEO services, social media marketing, reel creation, web and app development, content creation, branding, and media production, all designed to increase online visibility, generate qualified leads, boost engagement, and drive measurable business growth.
3 works in Mobile App
Located in Nasr City, Egypt
From €10,000 for Mobile App
Worked in Home Services (+27)
Speaks English, Arabic
11-50 members
Tallium Inc.
5
(11 reviews)
Fuelled by Excellence. Trusted by Leaders.
Tallium is a trusted partner for product co-creation, taking ideas from concept to award-winning apps through AI-native development and long-term collaboration. We help companies in fintech, edtech, healthtech, retail, logistics and beyond shape, design and build web, mobile and AI products. Our product leaders, senior designers and AI-native software engineers work as one team. We get to know your business and shape the product with you, and then the same team designs, builds and grows it. Everyone on your project is a Tallium employee, and the same people stay with your product for years. You can start with a focused proof of concept to test the idea, show investors or win your first customers with limited risk. As the product gains traction, we grow it into a full product team, and the engineers who already know your code bring new people up to speed. With AI-first engineering, AI agents handle routine coding within the standards we set for your project, and a named senior engineer approves every merge. The same budget covers more of your roadmap. If you can’t share code with an AI model, we use our classic process instead. 120+ people since 2012. Headquartered in Amsterdam, with R&D centers in Kyiv and Rzeszów.
8 works in Mobile App
Located in Amsterdam, Netherlands
From €5,000 for Mobile App
Worked in Media (+8)
Speaks English, Polish(+4)
51-200 members
KeyToTech
(0 review)
We help startups and companies develop and launch agile software products
Top awarded
KeyToTech is a software development agency. We deliver AI, mobile, web, and backend services to companies worldwide.
26 works in Mobile App
Located in London, United Kingdom (+1)
From €5,000 for Mobile App
Worked in Education (+12)
Speaks English, German(+2)
11-50 members

All Mobile App Developers in the United States

3 456 7

Struggling to choose? Let us help.

Post a project for free and quickly meet qualified providers. Use our data and on-demand experts to pick the right one for free. Hire them and take your business to the next level.