DesignRush evaluated more than 3,300 iOS app developers from across the world based on reviews, portfolios, clientele, industry reputation, and pricing. Following this careful assessment, we've compiled a list of the top service providers poised to deliver mobile solutions that perform and drive revenue. Select the company that aligns best with your requirements, considering its core services, specializations, case studies, and more. 

The Number 1 iPhone App Development Company as Selected by DesignRush Is:

Orangesoft

• Best for: Overall
• Average hourly rate: $50
• Minimum budget: $25,000 - $50,000
• Founded: 2011
• Size: 100 - 249
• Location: San Francisco, CA
• Notable clients: Adidas, Philips, CoachNow, Sport.com, Hamleys

In its 13 years in the industry, Orangesoft has developed 200+ custom mobile applications for dynamic startups and industry giants. Ensuring each app's optimal performance, it uses cutting-edge technologies, namely:

• Objective-C, Swift, and UIKit for core processors
• CoreData, Firebase, and Realm for databases
• AVPlayer, PlayerRed5, Twilio, JW, and OpenTok for video streaming
• RxSwift, Alamofire, Moya, Socket.io, and Combine for factory reset protection (FRP) and networking
• And more

The Orangesoft team also follows rigorous quality assurance (QA) practices and real user testing on authentic devices to validate an app's reliability.

The company developed the CoachNow app for a U.S. high-performance coach, whose goal was to streamline communication between coaches and athletes. The platform combined video analysis, progress tracking, an optimized feedback loop, education, and community building to improve skill development. As a result of Orangesoft's work, the project closed Round A with $1.7 million in funding. CoachNow has since evolved into a global success story, benefiting thousands of users across 140 countries in 60+ sports.

Check Orangesoft Agency Profile

Technource

• Best for: Real estate industry
• Average hourly rate: $25
• Minimum budget: $1,000 - $10,000
• Founded: 2012
• Size: 50 - 99
• Location: Wilmington, DE
• Notable clients: Hommati, Realty Port, Tuitment, CUT-IT, Westernburbs

Technource comprises a team of more than 20 seasoned mobile software engineers who have delivered 1,000+ projects to clients from the US, the UK, Canada, Australia, Malaysia, and beyond. It specializes in tools, technologies, and design patterns for iOS app development, including Swift, SwiftUI, Xcode, MVC, Patterns, and Flutter. In addition to custom iPhone app development, it offers application migration services, iOS UI/UX design, and prototype and multiplatform development.

With flexible meeting times, the company offers free expert consultation to discuss your ideas under a non-disclosure agreement (NDA). Ensuring you stay within budget and guaranteeing on-time delivery of error-free applications following the Agile development methodology.

Hommati, a real estate platform, engaged Technource to develop a comprehensive solution with separate dashboards for home seekers, agents, and franchises. The ecosystem offered tools like commission calculators, social media sharing capabilities, preference-based search filters, and location tracking.

To enhance the property-buying experience, Technource incorporated augmented reality (AR) into its mobile solution to enable advanced 3D virtual tours. This allowed agents to digitally introduce themselves to potential buyers, who could then take advanced 3D virtual tours of the properties. Technource's implementation for Hommati made property exploration more accessible and engaging.

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Surf

• Best for: Healthcare industry
• Average hourly rate: $49
• Minimum budget: $25,000 - $50,000
• Founded: 2011
• Size: 100 - 249
• Location: Wilmington, DE
• Notable clients: Google, SAP, KFC, Burger King, The Home Depot

With 12 years of industry experience, Surf assists enterprises and startups in transitioning from minimum viable products (MVPs) to full-featured products or augmenting in-house teams. Its team of intermediate and advanced iOS developers is well-versed in Swift, Human Interface Guidelines (HIG), and various Apple frameworks. Techniques like Surf MVP + Coordinators, Codestyle, and Code Review are also integrated into the workflow for greater efficiency.

The mobile app agency uses its proprietary automation software, SurfGen, to accelerate project timelines by up to 20%. Its International Software Testing Qualifications Board (ISTQB) certified experts speed up iOS app testing by 80% through advanced automation processes and comprehensive documentation.

After 10 months of work, Surf developed an MVP for a medtech company, with the aim of managing online health consultations better. Through customer journeys and machine learning (ML) algorithm, the app could screen symptoms and analyze medical history. The final product received a 4.8 average rating on the App Store and won gold in the Best Mobile MVP App category.

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Zazz

• Best for: Tourism industry
• Average hourly rate: $50
• Minimum budget: Inquire
• Founded: 2009
• Size: 250 - 499
• Location: Seattle, WA
• Notable clients: Riyadh Season, City of Mississauga, BBC News, Citibank, Honda

Zazz is backed by a 14-year history of crafting enterprise-grade, user-centric iPhone apps. It is home to certified engineers with mastery of Apple device technologies, including Swift, Objective-C, Xcode, GameplayKit, ARKit, EventKit, Apple Pay JS, Core ML, Core Data, and more.

The iPhone app development company has expertise in iOS library development, app testing, and feature integration, including AR, Bluetooth, and push notifications. Its monetization and marketing strategies ensure the apps remain visible on the App Store.

Zazz built the Imagine More app for Riyadh Season, a city-wide celebration in Saudi Arabia, to boost tourism, generate revenue, and provide a convenient guide for visitors. With a diverse user base in mind, it incorporated interactive 3D content and AR technology into the app. The dynamic native app's success was reflected in its 4.4-star rating on the App Store and 1.5 million downloads within the first month of release. It also generated $25 million in revenue.

Check Zazz Agency Profile

Trango Tech

• Best for: Home services industry
• Average hourly rate: $25
• Minimum budget: $1,000 - $10,000
• Founded: 2003
• Size: 100 - 249
• Location: San Jose, CA
• Notable clients: Helpp, Kia, OAKS, Khaity, Matchbox

Trango Tech has developed custom iOS apps for games, social media, and enterprise purposes, serving over 100 clients. These apps have collectively garnered over one million downloads on the App Store.

The mobile app agency is proficient in Swift, Objective-C, SwiftUI, and CocoaPods, as well as databases such as Oracle, MySQL, SQL Server, and MongoDB. Trango Tech leverages powerful integrated development environments (IDEs), namely, Visual Studio, PyCharm, and NetBeans. The agency is supported by partnerships with IBM, Microsoft, Red Hat, AWS, Trustwave, and more.

Trango Tech's client, the all-in-one service platform Helpp, sought to integrate diverse in-home services into a single iOS app to streamline booking and fulfillment processes. The agency leveraged intelligent algorithms to assign and schedule orders, ensuring customer background verification. It also used a human resource management system (HRMS), location-based pricing, and accurate location mapping. Thanks to Trango Tech's solution, Helpp processed more than 23,000 orders and built a customer base of more than 18,000 users.

Check Trango Tech Agency Profile

App Maisters

• Best for: Peer-to-peer services
• Average hourly rate: $50
• Minimum budget: Inquire
• Founded: 2014
• Size: Under 49
• Location: Houston, TX
• Notable clients: Students Ride Sharing, Share One, Find A Dentist, Premier Transportation, LIFSPK

With more than 10 years of industry experience, App Maisters has delivered 400+ projects, including interactive, scalable iPhone apps that adhere to brand guidelines and target specific markets. Its iOS app developers excel in programming languages such as Objective-C and XCode, application programming interface (API) architecture for backend development, and hardware integration using Agile methodology.

The agency stands out in increasing store traffic, brand awareness, and sales through app marketing and social networking strategies. Recognizing that an app's strength lies in content integration and presentation, App Maisters seamlessly integrates audio, video, magazines, and eBooks into its products.

App Maisters created a city-to-city carpooling solution for US college students through the Students Ride Sharing app. The platform facilitated carpooling to reduce individual transportation expenses. The main challenge of the project was the need to revise the UI/UX flow, which App Maisters successfully addressed by revamping the iOS designs using LAMP (Linux, Apache, MySQL, PHP). The solution increased group travel adoption, which in turn reduced carbon emissions.

Check App Maisters Agency Profiles

Intuz

• Best for: Community building
• Average hourly rate: $25
• Minimum budget: $10,000 - $25,000
• Founded: 2008
• Size: Under 49
• Location: San Francisco, CA
• Notable clients: Kingdom League International, Holiday Inn, Badu Connect, AMG, Hello Meela

Intuz has been in the business for over 15 years and houses more than 50 experts in engineering, design, and digital marketing. It excels at developing Internet of Things (IoT)-powered apps for iPhone, iPad, Apple Watch, and Apple TV, leveraging its cross-platform React Native expertise to deliver a seamless user experience across these iOS devices. The company has mastered turnkey iPhone development solutions, including Apple Pay (PassKit), WatchOS, HomeKit, HealthKit, SiriKit, MetricKit, CloudKit, iBeacons, 3D Touch, In-App Purchases, and CarPlay.

Intuz collaborated with Kingdom League International, a foundation focused on community transformation, to create the 1 Church 1 Day app. The client's goal was to facilitate strategic plans and action plans for its team leaders. Targeting a large, geographically diverse user base, Intuz deployed an iOS app that provides single-point access to three systems: the web app, the super admin panel, and the league admin panel. The solution enhanced the user experience and engagement while improving the management of user rights and permissions.

Check Intuz Agency Profile

Dev Technosys

• Best for: eCommerce sector
• Average hourly rate: $20
• Minimum budget: Inquire
• Founded: 2010
• Size: 100 - 249
• Location: Commerce, CA
• Notable clients: Fashion Porters, Nike, Johnson and Johnson, Whirlpool, Pfizer

Specializing in iPhone app development for over 13 years, Dev Technosys has created 1,000+ distinctive mobile applications for more than 700 clients from 70+ countries. Its team of over 150 qualified mobile software engineers is proficient in Swift, Objective-C, Retrofit, Glide, Picasso, Firebase, Node.js, Flutter, XML, SQLite, Realm, Xamarin, and other tools.

Dev Technosys ensures its applications reach a broader audience through multiplatform deployment services. Moreover, it provides iPhone app porting and upgrade services, allowing organizations to stay current with emerging technologies and attract more users.

Dev Technosys created Fashion Porters, an iPhone application designed to make fashion shopping more realistic. The company used a CAD system so buyers could “fit” and visualize clothes through 3D avatars generated from their body measurements. The eCommerce app's immersive 360-degree video simulation lets users see a virtual representation of themselves engaging in activities while wearing the outfits they are considering.

Check Dev Technosys Agency Profile

Appinventiv

• Best for: Business operations
• Average hourly rate: $25
• Minimum budget: $25,000 - $50,000
• Founded: 2015
• Size: 1000 & Up
• Location: Noida, India
• Notable clients: JobGet, Ikea, Domino's, Appfirm, H3 Enterprises

With a team of 250+ in-house iOS app developers, Appinventiv has successfully delivered more than 500 iOS projects in its nine years in the industry. The company offers full-stack iPhone app development, including rigorous software testing and multiplatform deployment, to ensure optimal performance and global reach. The company It has been recognized by The Economic Times as one of India's Growth Champions in 2023.

Appinventiv specializes in tools and techniques such as Xcode, Zeplin, Invision, Figma, Objective-C, Swift, XCTest, GitLab, and SSL Pinning. It uses project management tools such as Slack, Proofhub, Basecamp, Jira, and Notion to ensure worry-free progress updates with clients.

When the job marketplace, JobGet, dealt with lengthy job fulfillment periods, Appinventiv streamlined the search and candidate assessment processes. Through a Product Discovery Workshop, it crafted resume-like user profiles, integrated location-based features, and incorporated in-app interviews and AI technology to match employers and jobseekers. This reduced search time from months to days.

With over two million downloads, the platform managed 50,000+ active employers and placed 150,000+ jobseekers. The app dominated its category in monthly downloads, active users, and user satisfaction, securing $52 million in Series B funding.

Check Appinventiv Agency Profile

Radixweb

• Best for: B2C industry
• Average hourly rate: $25
• Minimum budget: $25,000 - $50,000
• Founded: 2000
• Size: 500 - 999
• Location: Ahmedabad, India
• Notable clients: Xerox, The New York Times, Shutterfly, Tesco, Ricoh

With over 23 years of experience, Radixweb is a prominent player in the mobile platform solutions sector, boasting a track record of 3,000 clients worldwide and a 97% client retention and return rate. It is backed by a team of 650 tech experts skilled in Objective-C, Swift, iCloud Drive, iBeacon, Core Bluetooth, iMovie, Siri, and 3D Touch. The company accelerates time-to-market through iterative development, facilitated by dedicated project managers.

Recognized with prestigious awards such as the Inc. Power Partner and Globee Business Excellence Award, Radixweb has been a member of the Forbes Technology Council since 2023. Holding ISO 27001:2022 and ISO 9001:2015 certifications underscores the company's commitment to stringent security standards.

A UAE-based food and beverage company engaged Radixweb to develop a custom eCommerce iOS app to transition from a business-to-business (B2B) to a business-to-consumer (B2C) model. Radix built a solution with multiple backend architectures and an intuitive WordPress-compatible user interface (UI) for WordPress, OpenCart, Magento, Shopify, and Strapi. The platform featured real-time order processing updates, a scalable multi-tenant architecture, dynamic themes, social login, multiple payment gateways, and multilingual support. Its in-app analytics function also helped reduce inventory wastage.

Check Radixweb Agency Profile

How We Picked the Best iOS App Developers

DesignRush is a reliable resource for identifying top iOS app developers, thanks to our expert selection team, comprising former agency executives and leaders. Our team possesses an in-depth understanding of our agency ranking process, which adheres to rigorous criteria, including:

• Vetted reviews: Client satisfaction, the agency's level of authority in the iOS app development, and the quality of work
• Robust portfolio: List of smartphone app development projects and their outcomes, backed by case studies
• Awards and press mentions: Thought leadership, industry reputation, and innovation demonstrated by awards and media recognition
• Team bios: Team members' profiles, experience, certifications, and specializations
• Top services: Areas of expertise and core services

The companies on this listing are skilled in:

• iOS development languages and frameworks
• iOS integrated development environments (IDEs)
• Core data
• Debugging
• Memory management
• Source control
• Grand Central Dispatch (GCD)
• Unit testing
• API integration
• Creative UI/UX design
• Spatial reasoning
• Storyboards creation

For more detailed insights into our process, please refer to the DesignRush Agency Ranking Methodology page.

10 Most Popular iOS App Development Companies Compared