All Mobile App Developers in Illinois
Debut Infotech
5(9 reviews)AI-Augmented Product Engineering Company
Highly recommendedDebut Infotech is an AI-augmented blockchain and software development company helping organizations across financial services, healthcare, supply chain, and digital platforms build systems that perform reliably in complex, regulated environments. Founded in 2011 and blockchain-native since 2015, the company brings engineering discipline and technology depth to enterprises moving from fragmented pilots to production-grade systems. With delivery centers across the USA, UK, Canada, and India, Debut Infotech combines regional market understanding with globally distributed engineering capability — enabling clients to move with speed, consistency, and governance. Service areas: Artificial intelligence and generative AI — Enterprise LLM integration, AI agent development, retrieval-augmented generation (RAG) pipelines, predictive analytics, computer vision, and intelligent process automation embedded at the system architecture level. Blockchain and Web3 development — Smart contract engineering, DeFi protocol development, real world asset (RWA) tokenization, cryptocurrency exchange infrastructure, and enterprise blockchain on Hyperledger Fabric and Corda. Mobile application development — Native iOS, Android, and cross-platform applications (React Native, Flutter) architected for AI integration, enterprise-grade security, and sustained performance under production load. Web and software development — Full-stack web platforms, SaaS products, and enterprise software systems engineered API-first, designed for long-term maintainability and organizational scale Proven Delivery: $62M+ raised across client platforms including Ifinca, IntegraLedger, Everledger, and TĒM 90% customer success score across enterprise engagements 15 years of enterprise software delivery Fortune 500 clients and high-growth startups across 25+ industry verticals 50–249 engineers spanning AI, blockchain, and software disciplines10 works in Mobile AppLocated in Cook County, United States (+2)From €10,000 for Mobile AppWorked in Others (+11)Speaks English51-200 membersSimpalm | Digital Product Development Company
5(27 reviews)Creating custom app, web and AI solutions
Highly recommendedSimpalm is a leading digital product development company in the USA, specializing in UI/UX design, mobile app development, web development, AI solutions, and SaaS platforms. With offices in Maryland, Chicago and New York, we’ve been building transformative digital solutions for startups, established companies, and nonprofits. Our digital solutions have solved challenges for healthcare, financial services, construction, education, IoT, charities, associations and SaaS industry. Our team of experienced project managers, designers, developers, and testers combines creativity with cutting-edge technology to turn ideas into high-performing apps, websites, and AI-driven systems. We focus on delivering products that enhance efficiency, scalability, and user experience — helping organizations grow faster in today’s digital-first world. With over 400+ successful deployments, Simpalm has become a trusted partner for businesses looking to design, develop, and scale their digital products. Beyond development, we offer continuous support and maintenance to ensure your solution remains secure and future-ready. Our Main Services: Discovery and Design : Define requirements, create wireframes, and design visually engaging UI/UX for your app or website. Custom App Development : Build AI-powered mobile apps using React Native, Swift, Kotlin, and Flutter. Website Design and Development : Craft CMS-based websites in WordPress, Drupal, or Hubspot CMS to represent your brand or organization effectively. Web and SaaS Applications : Develop scalable SaaS or web portals using React, Node.js, .NET, and Python. AI Strategy and Development : Create tailored AI strategies, chatbots, and automation workflows that empower your business. Support and Maintenance : End-to-end technical support to keep your products performing seamlessly.5 works in Mobile AppLocated in North Bethesda, United States (+4)From €10,000 for Mobile AppWorked in Home Services (+7)Speaks English51-200 membersPlavno
5(16 reviews)AI-First Software Company: Secure Agents, Voice Assistants, and Scalable Cloud.
Top awardedPlavno is a premier software development house with over 20 years of experience and a highly qualified team of experts in your industry. Fully-fledged teams of specialists cover each stage of product creation , from product management and analysis to design, development, testing, and ongoing support. We have a unique advantage , our pre-formed full teams work exclusively on products in their specific domains, such as Healthcare, E-Learning, FinTech, Travel & Hospitality, Fleet management and more. We can help you with: ✔ Web Development ✔ Mobile App Development ✔ CRM/CMS/SaaS Development ✔ Chat and Chatbot Development ✔ Web3 / DeFi / DAO / Smart contract ✔ WebRTC Stop struggling with bloated budgets and slow time-to-market. At Plavno, our fully-fledged team provides cost-effective and streamlined solutions that minimize technical debt and maximize your product's potential. With end-to-end support and a proven track record in the SAFe Scaled Agile Framework, we're the partner you need to succeed. LET’S CONNECT Let us help you choose the best path forward to deliver the perfect solution: sales@plavno.io22 works in Mobile AppLocated in Alexandria, United States (+2)From €10,000 for Mobile AppWorked in Banking & Financials (+19)Speaks English, French(+2)51-200 membersSynergy Labs
4.9(14 reviews)#1 Boutique App Development Agency
Top awardedAt Synergy Labs, we believe that building a great app is more than just writing code—it’s about creating a digital experience that elevates your brand. Founded over six years ago, we’ve grown into a boutique development studio delivering over 50 custom projects for clients like Forbes Council , Minnect , and Clapper . Our journey started when our founder, Sardor, faced the same challenges as our clients: balancing quality with cost-effective development. That experience inspired us to create a smarter way to build apps—one that bridges the gap between the agility of freelancers and the bureaucracy of large firms. Our collaborative approach ensures you’re informed and in control at every step, with a dedicated team working as an extension of your business. What Sets Us Apart: Fixed Cost : One upfront price covers your project from start to finish—no surprises, just clarity and peace of mind. Dedicated Team : A single point of contact and a dedicated developer focus solely on your project, ensuring a seamless and personalized collaboration. Your Build, Your Ownership : Everything we create—from the code to the hosting—is entirely yours, offering long-term scalability and control. Our expertise spans custom mobile apps for iOS and Android , as well as web applications , all designed with your unique vision in mind. Whether you need a membership app like Forbes Council’s, an expert marketplace like Minnect’s, or a dynamic social platform like Clapper’s, we’re here to help you stand out. Let’s connect and explore how we can bring your vision to life or check us out at: www.synergylabs.co9 works in Mobile AppLocated in Hartford, United States (+23)From €5,000 for Mobile AppWorked in Hospitals & Healthcare (+4)Speaks English, Arabic11-50 membersMind Studios
5(4 reviews)Long-Term Technology Partner for Growth-Stage and Mid-Market Companies
RecommendedFounded 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 AppLocated in Mantua, United States (+3)From €20,000 for Mobile AppWorked in Logistics & Supply Chain (+5)Speaks English, Ukrainian51-200 membersSaM Solutions
5(3 reviews)SaM Solutions is an international provider of IT services and software solutions with over 30 years
RecommendedTop awardedWe focus on IT consulting and custom software engineering, catering to both the European and US markets by leveraging our global resources. Serving a wide range of clients, from startups and SMBs to global enterprises and government agencies, we deliver technological excellence, accelerate time to market, and ensure uncompromised software quality and security. SaM Solutions employs some of the most talented IT professionals in the industry. We continually invest in skills development and knowledge enhancement to ensure our clients receive world-class software solutions and services most cost-effectively. In every client engagement, we are committed to guaranteeing the success of IT processes and software systems.14 works in Mobile AppLocated in Norwood, United States (+5)From €5,000 for Mobile AppWorked in Industrial Goods & Services (+23)Speaks English, German(+2)501-1000 membersArtVersion
5(2 reviews)We Design Experiences®
Top awardedArtVersion is a full-service creative agency recognized for its expertise in design, branding, and user experience. We specialize in web design, graphic design, user interface (UI) and user experience (UX) design, as well as branding and visual identity. Our team collaborates with organizations of all sizes — from emerging startups to Fortune 500 companies — delivering tailored solutions that elevate brand visibility and engagement through compelling visuals and intuitive design. With a focus on visual communication, ArtVersion creates impactful designs that resonate with audiences and advance business objectives. Our experienced designers, developers, and strategists combine aesthetic precision with functional excellence, ensuring every project is visually distinctive, strategically grounded, and purpose-driven. Agency Capabilities: • Web Design & Development • UI & UX Design • Branding Design & Strategy • Graphic Design & Visual Communication • Motion Graphics & Interactive Media • Product Launch & Go-to-Market Strategies • Content Strategy & Development • Marketing & Corporate Collateral • AI Integrations & Experience Optimization Industries Served: We partner with organizations across a broad range of sectors, helping brands translate complex ideas into clear, engaging experiences. Our cross-industry expertise allows us to design for unique audiences while maintaining scalability, accessibility, and measurable impact. Industries include: • Healthcare & Life Sciences • Automotive & Transportation • Financial Services & Insurance • Technology & Software • SaaS & Digital Platforms • Architecture, Engineering & Design • Fashion, Retail & Luxury • Sports, Fitness & Lifestyle • Non-Profit & Mission-Driven Organizations • Education, Government & Public Sector • Industrial, Manufacturing & B2B • Franchise & Multi-Location Businesses • Arts, Culture & Foundations2 works in Mobile AppLocated in Chicago, United States (+1)From €10,000 for Mobile AppWorked in Industrial Goods & Services (+6)Speaks English51-200 membersChicago app Devs
(0 review)Apps Built to Actually Work
chicago App Devs is a mobile app development company in chicago, Texas, specializing in custom iOS, Android, and cross-platform mobile applications. We help startups, small businesses, and enterprises build scalable, secure, and high-performing digital products that solve business challenges and improve customer experiences. Our Core Services: iOS App Development Android App Development Flutter Development React Native Development Cross-Platform App Development Custom Software Development AI-Powered App Development UI/UX Design MVP Development Enterprise Mobile Applications Backend Development API Integration Cloud Solutions App Testing Maintenance. Industries We Serve: Healthcare Education Fitness & Wellness FinTech E-commerce Retail On-Demand Services Enterprise Technology. Our experienced development team provides end-to-end mobile app solutions, from product discovery and UX/UI design to development, quality assurance, deployment, and ongoing support. With PhD-level technical expertise, experience serving Inc. 5000 clients, and a reported 94% client retention rate, chicago App Devs focuses on delivering reliable software and lasting client partnerships. As an chicago-based mobile app development agency, we combine technical innovation, agile development, and business-focused strategies to build mobile applications that support growth, improve efficiency, and deliver measurable value.6 works in Mobile AppLocated in Chicago, United StatesFrom €10,000 for Mobile AppWorked in Hospitals & Healthcare (+2)Speaks English, Hindi(+1)51-200 membersELEKS
5(1 review)Your trusted partner for guaranteed software delivery
Top awardedELEKS is your trusted partner for guaranteed software delivery. Combining over 30 years of industry insight with cutting-edge AI technology, we help businesses worldwide deliver their unique software vision through bespoke full-cycle solutions.6 works in Mobile AppLocated in Las Vegas, United States (+14)From €20,000 for Mobile AppWorked in Energy & Oil (+10)Speaks English, German(+1)1001-5000 membersOnePix LLC
5(3 reviews)Boutique development agency with strategic focus
OnePix is a web development studio working since 2018. We build and support online stores, custom web platforms, internal tools, AI-powered features and mobile apps. Main stack: WordPress and WooCommerce, Shopify, Laravel, React, Vue.js and React Native. We often take over complex existing projects: legacy code, ERP, CRM and payment integrations, slow sites. We work as a technical partner: we review the architecture, flag risks early and plan the work in stages. Many clients stay with us for long-term support. 300+ projects for clients in 36 countries. Calls in English. Documents and written communication in your language.3 works in Mobile AppLocated in Miami, United StatesFrom €5,000 for Mobile AppWorked in Entertainment & Events (+9)Speaks English, Dutch(+5)11-50 membersMultiQoS
(0 review)MultiQoS: Your Partner in Digital Transformation
Founded in 2020, MultiQoS, a custom software and AI/ML development company, has positioned itself as a visionary leader in software development, intelligent automation, web and mobile app solutions, cloud computing, and Microsoft services such as Power Platform, SharePoint, Azure Databricks. Headquartered across India, the USA, and Germany, we have successfully delivered over 600 projects to 470+ satisfied clients globally. With a dedicated team of 145+ expert software engineers, we provide extensive technology solutions that enable businesses to thrive across various industries, including Manufacturing, FinTech, Healthcare, Supply Chain, Retail, Real Estate, EdTech and more. Guided by the vision of our CEO, Mr. Prashant Pujara, MultiQoS has expanded its reach to cover 80% of international markets, serving over 42 industries and a diverse global clientele. Our mission is clear: to transform your vision into innovative, scalable solutions using cutting-edge AI/ML technology that drives business success. Reach out to us today, and let's discuss how we can bring your ideas to life with transformative technology! Our Offerings: AI/ML Development Solutions Generative AI & Agentic AI Automation Data Engineering, Analytics & Business Intelligence Custom Software Development Services Mobile Application Development Services Microsoft Consulting Services Native/Hybrid Application Development Web Application Development Services Software Testing Services AWS Cloud Solutions UI/UX Design Services Blockchain Services Digital Transformation Predictive Analytics Enterprise Mobility Solutions Internet of Things (IoT) Cloud Migration Mobile Testing API Development SaaS/PaaS Product Development System Integration Solutions Digital Marketing Services Feel free to contact us for your business requirements!9 works in Mobile AppLocated in Schaumburg, United States (+2)From €1,000 for Mobile AppWorked in Food (+6)Speaks English51-200 memberseComStreet
(0 review)eComStreet has the talent and experience to develop, manage and implement your next technology project.
eComStreet is a global company specializing in software design and development, and offers a wide array of marketing services. We take great pride in creating high quality solutions that meet or exceed our customers’ expectations. Here at eComStreet, our mission is to help every business connect to their target audiences in the most effective way possible. We do this through the design, development and deployment of custom tech solutions, specializing in mobile app development on every platform. Working with top companies like Barchart.com and The Warranty Group who want to make a significant impact through technology, we do much more than just deliver the latest tech. As a full service IT company, we are able to integrate smoothly into your organization to meet your exact needs and bring your full vision to life. In addition to custom mobile application development, our team is highly experienced in AWS, Full Stack Development, Business Intelligence, Automation, Quality Assurance, and all other software development and professional information technology services. Headquartered in Chicago, with multiple offices in the United States and globally, our robust team will work directly with you to tackle your needs and build the powerful software solutions that will take your operations to the next level.Looking for work in Mobile AppLocated in Chicago, United StatesFrom €1,000 for Mobile AppWorked in Software & Computer ServicesSpeaks English51-200 membersWEZOM
5(2 reviews)Software Delivery Driving Business Growth Partner with dedicated IT experts who ‘get’ your business.
WEZOM is an established custom software development firm catering to medium-sized businesses and large corporations across various sectors, including logistics, oil and gas, real estate, fintech, eCommerce, and education. The company stands out for its unique, creative approach to each project, ensuring high-quality, reliable, and effective technological solutions that are tailored to the specific needs of its clients. With a commitment to quick project turnaround times, WEZOM prioritizes staying updated with rapidly advancing technologies to deliver fast, powerful websites and apps capable of handling increasing traffic without compromising on security. Operating from offices in the United States WEZOM employs over 280 certified professionals and has successfully completed more than 3,500 projects, earning numerous awards and certifications for its exceptional web development, custom software development, and ReactJs services.Looking for work in Mobile AppLocated in Schaumburg, United StatesFrom €50,000 for Mobile AppWorked in Military (+10)Speaks English, Ukrainian201-500 membersM TECHUB LLC
5(10 reviews)AI, Mobile App & Software Development Company
Highly recommendedTop awardedM TECHUB LLC is a US-based AI development, mobile app development, custom software development, and IT staff augmentation company. We help startups, SaaS companies, and enterprises build scalable digital products, automate business processes, and extend their engineering teams. Our AI development services include AI agents, AI chatbots, generative AI applications, RAG systems, voice assistants, workflow automation, and OpenAI API integrations. Our engineers work with Python, FastAPI, LangChain, LlamaIndex, vector databases, and leading large language models. We design and develop mobile applications for iOS and Android using React Native, Flutter, Swift, Kotlin, Firebase, and cloud technologies. Our mobile development experience covers fintech, healthcare, real estate, logistics, eCommerce, education, fitness, social networking, and SaaS platforms. Our custom software development team builds SaaS applications, enterprise software, web platforms, marketplaces, dashboards, APIs, CRM systems, and cloud-based business solutions using React.js, Next.js, Node.js, TypeScript, PostgreSQL, MongoDB, AWS, and Google Cloud. Through our IT staff augmentation services, companies can hire dedicated AI engineers, mobile developers, full-stack developers, DevOps engineers, QA specialists, UI/UX designers, and project managers. We offer flexible full-time, part-time, and dedicated-team engagement models. M TECHUB LLC provides complete product delivery, including strategy, UI/UX design, software architecture, development, testing, deployment, maintenance, and technical support. Our teams serve clients in the United States, United Kingdom, Canada, Europe, the Middle East, and other global markets.10 works in Mobile AppLocated in Loudoun County, United States (+2)From €3,000 for Mobile AppWorked in Banking & Financials (+7)Speaks English, Arabic(+3)51-200 membersLuby
4.7(9 reviews)AI-native product engineering for fintechs and financial institutions, since 2002.
Top awardedLuby is a product engineering and dedicated team partner for tech companies, fintechs and financial institutions, and we work across many industries. We build: Middleware and system integrations Last-mile and API-driven architectures AI legacy modernization Customer journeys on scalable platforms We have been doing this since 2002, from an office in Miami and a delivery center in Brazil, with in-house senior engineers, ISO 27001 and ISO 27701 certifications and AWS and Google Cloud partnerships. We also build our own products: Finfy, a white-label financial operation, IrisLoan for lending, HarmoniaPay for payments, and Internet Banking, built with emerie. Our strength is turning potential into concrete results, combining creative minds with technology to overcome complex challenges and generate impact.8 works in Mobile AppLocated in Miami, United States (+1)From €20,000 for Mobile AppWorked in Logistics & Supply Chain (+10)Speaks English, Portuguese201-500 membersChudovo OÜ
5(23 reviews)Complex Systems Implementation
Highly recommendedTop awardedChudovo is a custom software development company, focused on complex systems implementation. Customers rely on our expertise, appreciate transparency in time, budget, visibility of work progress, and our assistance in achieving their business objectives with high-quality solutions. Our teams follow best development practices and methodologies and apply their experience in such industries as healthcare, finance, e-commerce, logistics, telecommunications, and others. In our portfolio, we have over 190 successfully implemented web, mobile, desktop, cloud, embedded, and AI projects. With our commitment to innovation, we bring together cutting-edge technologies, visionary strategies, and creative minds to breathe life into your visions and ideas.13 works in Mobile AppLocated in New York, United States (+4)From €5,000 for Mobile AppWorked in Hospitals & Healthcare (+19)Speaks English, German(+2)51-200 membersTaction Software LLC
(0 review)HIPAA-compliant healthcare IT, custom software & CRM solutions — built by 400+ experts since 2013.
Taction Software is a U.S.-based custom software development company specializing in HIPAA-compliant healthcare IT, CRM, and enterprise software. Headquartered in Chicago and founded in 2013, we partner with hospitals, clinics, payers, and digital health startups to design and build secure, scalable healthcare technology — including EHR/EMR integrations (Epic, Cerner, Athena), HL7/FHIR/Mirth Connect interfaces, telemedicine platforms, remote patient monitoring apps, and AI-powered clinical solutions. Backed by 400+ healthcare IT experts and 20+ years of combined domain experience, Taction delivers compliant software that improves care delivery and operational efficiency.Looking for work in Mobile AppLocated in Chicago, United StatesFrom €10,000 for Mobile AppWorked in Hospitals & HealthcareSpeaks English51-200 membersHristov Development
(0 review)Hristov Development — Custom Software & AI Solutions for Startups and Growing Tech Companies
Hristov Development is a nearshore software development company based in Mexico, specializing in custom software solutions, web and mobile app development, and AI integrations. We help startups and mid-sized businesses in the U.S. scale efficiently through agile development, innovative prototypes, and long-term product support. Our experienced development team delivers fast, flexible, and cost-effective software tailored to your business goals. Whether you're building an MVP, automating processes, or launching a full-scale SaaS platform, our team is here to help you grow.Looking for work in Mobile AppLocated in Chicago, United StatesFrom €1,000 for Mobile AppWorked in Hospitals & Healthcare (+1)Speaks English11-50 membersWebAppsWorld
4.9(9 reviews)Web & Mobile Application Developer | Digital Solutions Specialist
Highly recommendedTop awardedCOMPANY PROFILE WebAppsWorld is a software development and digital solutions company focused on creating professional, affordable and business-driven digital products. The company designs and develops websites and applications tailored to client requirements, with an emphasis on modern technology, strong user experience, brand visibility and practical business outcomes. WebAppsWorld offers a multidisciplinary delivery capability spanning web development, mobile applications, e-commerce, graphic and brand design, SAP consulting and training, and digital learning solutions. CORE SERVICES • Website Design & Development – responsive business websites, landing pages, CMS solutions, e-commerce websites, redesigns and ongoing website support. • Mobile App Design & Development – custom Android and iOS solutions, business apps, e-commerce apps, customer portals, integrations, testing and deployment. • E-Commerce & Digital Commerce – product and service catalogues, customer account functionality, payment integration, online-store experiences and scalable commerce solutions. • SAP Consulting, Implementation & Training – implementation support, customization, integration, optimization, consulting, training and knowledge transfer. • eLearning & Instructional Design – learning content design, interactive eLearning, training videos, LMS-ready learning content and SCORM/xAPI-oriented solutions where required. • Graphic Design & Branding – logos, digital advertisements, banners, business cards, corporate identity materials, brochures, flyers, posters and other marketing collateral. • SEO & Online Presence – search-engine-focused website development and digital solutions designed to strengthen visibility and support customer acquisition.Looking for work in Mobile AppLocated in Pinecrest, United StatesFrom €1,500 for Mobile AppWorked in Logistics & Supply Chain (+5)Speaks English1-10 membersTrue Tech Software
(0 review)Custom software, built around your business
True Tech Software builds custom software solutions for businesses that need more than what off-the-shelf tools can offer. From rapid prototyping and proof-of-concepts to full-scale custom applications, cross-platform mobile apps, Windows desktop software, and cloud infrastructure, we handle every stage of the software lifecycle — design, development, deployment, and ongoing support. We partner closely with our clients to understand their real business problems, then build solutions tailored to solve them, not generic products that require you to adapt. Beyond client work, we also build and maintain our own internal products — giving us firsthand experience delivering and supporting production software at scale. Whether you need a quick prototype to validate an idea or a fully deployed, cloud-hosted application, True Tech Software delivers software that fits.Looking for work in Mobile AppLocated in Carbondale, United StatesFrom €1,000 for Mobile AppWorked in EducationSpeaks English1-10 members