Best iOS App Development Companies in the California | 2022

Searching for the Best iOS App Development Company that is a right match for your business ? With the help of our list of the Best iOS App Development Companies in California find and hire the best company to meet your needs.
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4.9 out of 5, based on 742 real reviews.
Rankings updated: Mar 16, 2026

Certain agencies may be featured through sponsored placements. Rankings and SF Scores remain unbiased and are based solely on our evaluation methodology.

313 Companies

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6

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

6

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
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Expertise Distribution (%)
  • 50% Mobile App Development

  • 40% Web Development

  • 10% Web Design

Long-Term Support for Ruby on Rails Applications

We deliver custom web and mobile application development services, specializing in Ruby on Rails development. Our team handles the full lifecycle—from design and development to support and maintenance—building scalable, secure, and high-performance applications tailored to modern business needs.

View Ecliptic Ideas Profile
Inside Service Listing

$100-$149/hr

Hourly Rate
Inside Service Listing

$100,000+

Min. Budget Size
Inside Service Listing

2 - 9

Team size
Inside Service Listing

California, USA

Location

3

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

3

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
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Expertise Distribution (%)
  • 30% Mobile App Development

  • 30% AI Development

  • 20% Digital Transformation

  • 20% Software Development

Purpose Built Software Solutions

Custom Stacks delivers purpose-built software and AI solutions designed to elevate your business performance. We provide a transparent, reliable, and client-focused development experience, guiding you from concept to deployment. Our proven 7-step development process begins with innovation sessions to understand your goals, followed by interactive prototypes during the visual design stage. We then move into full-stack development, rigorous quality assurance, and seamless deployment. Post-launch, we support ongoing maintenance and optimization. Throughout every stage, your dedicated Custom Stacks project manager ensures clear communication, expert guidance, and proactive advocacy, helping your business leverage technology to achieve measurable results and lasting growth.

View Custom Stacks Profile
Inside Service Listing

$100-$149/hr

Hourly Rate
Inside Service Listing

$10,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

California, USA

Location

3

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

3

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
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Expertise Distribution (%)
  • 25% Mobile App Development

  • 25% Software Development

  • 25% Web Development

  • 25% Web Design

Virtual and Augmented Reality development

BVG Software Group is a global software development partner delivering tailored technology solutions for startups, SMBs, and large enterprises. Our team of skilled engineers and project managers helps businesses achieve measurable results through on-time, on-budget execution and strategic guidance. We prioritize business analysis and evaluation, investing the time to understand your goals and provide actionable insights before any development begins. Leveraging Ukraine’s top-tier STEM talent and cost-effective outsourcing advantages, we deliver exceptional value without compromising quality. Our expertise spans: 3D Art Production & Immersive Content Development Mobile Game Development Native iOS & Android Apps Cross-Platform Apps (Unity, React Native) Custom Web Development (PHP, Node.js, JavaScript) BVG SG combines deep technical knowledge, agile workflows, and transparent project management to provide scalable, innovative, and reliable digital solutions. Whether you need additional engineering resources or end-to-end product development, we help turn your business vision into high-impact technology.

View BVG Software Group Profile
Inside Service Listing

$25-$49/hr

Hourly Rate
Inside Service Listing

$10,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

California, USA

Location

3

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

3

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 25% Mobile App Development

  • 25% Web Development

  • 25% Web Design

  • 25% IT Services

We Entangle with You

We specialize in software project recovery, product strategy, and custom software development for businesses facing delayed, over-budget, or underperforming technology projects. In many cases, companies approach us after development teams miss deadlines or exceed budgets. Our proven five-step project turnaround framework helps stabilize and successfully deliver these critical initiatives. Our process begins with a detailed project assessment and technical analysis to understand the current state of the product, business goals, and long-term vision. We then create a data-driven product roadmap, outlining clear milestones, technology recommendations, and scalable development strategies. Using agile development and sprint-based implementation, our team delivers consistent progress through transparent communication, regular reporting, and strong quality assurance. After launch, we focus on continuous optimization, performance improvements, and ongoing support. This structured approach helps organizations accelerate product delivery, improve reliability, and achieve predictable results from their technology investments.

View SubcoDevs Inc Profile
Inside Service Listing

$50-$99/hr

Hourly Rate
Inside Service Listing

$5,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

California, USA

Location

2

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

2

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 20% Mobile App Development

  • 20% Web Development

  • 20% Web Design

  • 20% Business Services

  • 20% Software Development

YOUR PERSONAL SOFTWARE

YOPESO is a global software development company specializing in high-quality web and mobile application development. Founded in 2005, our team of 120+ skilled engineers across Romania and Malaysia helps mid-sized and enterprise businesses turn innovative ideas into scalable digital products, accelerating growth and strengthening their presence in today’s digital economy.

View YOPESO Profile
Inside Service Listing

$25-$49/hr

Hourly Rate
Inside Service Listing

$25,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

California, USA

Location

2

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

2

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 20% Mobile App Development

  • 20% Ecommerce Development

  • 20% Web Development

  • 10% Web Design

  • 10% AI Development

  • 10% CMS

  • 10% Software Development

Amazing design creates incredible experiences

Guided by strong business ethics and customer-focused values, we deliver custom software and digital solutions tailored to each client’s technical and budget requirements. Instead of offering one-size-fits-all services, we focus on creating practical, scalable solutions that improve efficiency, support business goals, and maximize return on investment (ROI) for our clients.

View App Design Company Profile
Inside Service Listing

$50-$99/hr

Hourly Rate
Inside Service Listing

$10,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

California, USA

Location

2

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

2

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 20% Mobile App Development

  • 20% Web Design

  • 20% Blockchain Development

  • 20% AI Development

  • 10% Software Development

  • 10% Web Development

Crafting Custom Software & Digital Solutions

InApp is a global software development and technology consulting company specializing in custom web applications, mobile app development, and enterprise software solutions. With offices in India, the United States, and Japan, and more than 22 years of experience, InApp has successfully delivered thousands of projects for startups, SMBs, and global enterprises. Our team combines deep technical expertise with a process-driven development approach to build scalable, secure, and high-performance digital products. We provide end-to-end services including custom software development, web and mobile application development, application modernization, DevOps, QA testing, and digital product engineering. In addition, we help organizations adopt emerging technologies such as AI, machine learning, AR/VR, and blockchain to accelerate innovation and business growth. InApp’s experienced engineering teams work across modern technology stacks including React, Angular, Vue.js, .NET, Node.js, Django, Spring Boot, Flutter, React Native, and native iOS/Android, supported by robust databases and cloud platforms such as AWS, Microsoft Azure, and Google Cloud. Focused on transparency, quality, and efficient delivery, we help businesses build reliable software products faster and more cost-effectively while maintaining world-class development standards.

View InApp Profile
Inside Service Listing

$25-$49/hr

Hourly Rate
Inside Service Listing

$50,000+

Min. Budget Size
Inside Service Listing

250 - 999

Team size
Inside Service Listing

California, USA

Location

2

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

2

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 20% Mobile App Development

  • 20% IT Services

  • 20% Business Services

  • 20% Software Development

  • 10% Web Development

  • 10% Cloud Computing Services

Access Elite Talents in Hour

Scalable Remote Workforce & Managed Support Solutions Our fully managed outsourcing services help growing businesses build a scalable, high-performing remote workforce without the complexity of in-house hiring. We handle the entire talent lifecycle—from recruitment and screening to onboarding, training, and day-to-day management—so your team can focus on driving results and business growth. We maintain a strong global network of experienced professionals, giving companies quick access to qualified sales representatives and customer support specialists. Our structured training programs and performance management systems ensure consistent productivity and service quality. Our core services include lead generation, appointment setting, cold calling, email prospecting, client retention, and live sales chat handled by skilled representatives. On the support side, we deliver inbound customer service, virtual receptionist services, technical support, and live chat assistance across phone, email, and messaging channels. By providing cost-effective, flexible staffing solutions for U.S.-based brands and global businesses, we help organizations reduce operational costs, improve customer experience, and scale operations faster with reliable remote teams.

View RemoteReps Profile
Inside Service Listing

< $25/hr

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

1,000 - 9,999

Team size
Inside Service Listing

California, USA

Location

2

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

2

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 20% Mobile App Development

  • 10% Software Development

  • 10% Web Development

  • 10% IT Services

  • 10% Blockchain Development

  • 10% Internet of Things

  • 10% AI Development

  • 10% Cloud Computing Services

  • 10% Business Services

We are changing the world with technologies

MedRec Technologies is a London-based software development company delivering advanced digital solutions to businesses worldwide. With a global team of 60+ software engineers, consultants, designers, and technology specialists across the UK, USA, Europe, the Middle East, and Asia, we provide scalable and high-performance software tailored to modern business needs. Our expertise includes AI and Machine Learning, Big Data Analytics, IoT, Cloud Computing, Blockchain, RPA, Cybersecurity, and SDN-NFV, enabling organizations to accelerate digital transformation. We serve diverse industries such as healthcare, fintech, retail, manufacturing, education, robotics, e-commerce, and transportation. Our core services include custom software development, mobile and web application development, enterprise solutions, automation systems, chatbot development, real-time applications, QA testing, and IT consulting. With a strong focus on innovation, quality, and collaboration, MedRec Technologies helps businesses build reliable, secure, and future-ready technology solutions.

View MedRec Technologies Profile
Inside Service Listing

< $25/hr

Hourly Rate
Inside Service Listing

$10,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

California, USA

Location

2

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

2

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 20% Mobile App Development

  • 20% Software Development

  • 20% Web Development

  • 20% Web Design

  • 20% Internet of Things

We do not just build products; we engineer growth

Sileria is an experienced software development and app engineering company specializing in building innovative digital solutions across multiple platforms. Our expertise includes native mobile app development, enterprise software, web applications, embedded systems, robotics, graphics, VR solutions, and wearable technologies. Founded in 2001 and incorporated in California in 2003, Sileria brings decades of industry experience, with roots in software consulting dating back to 1994. Over the years, our team has successfully delivered 100+ applications, written 1.6+ million lines of code, and completed 50,000+ hours of development work for clients worldwide. We are committed to delivering high-performance, scalable, and secure software solutions by combining strong technical expertise, modern architecture, and rigorous quality assurance processes. Our approach emphasizes flexibility, innovation, and close collaboration with clients to ensure each product meets business goals and market demands. At Sileria, our mission is to build reliable, future-ready software products while maintaining uncompromising standards in code quality, design integrity, and technology innovation.

View Sileria Profile
Inside Service Listing

$100-$149/hr

Hourly Rate
Inside Service Listing

$50,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

California, USA

Location

2

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

2

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 20% Mobile App Development

  • 10% Ecommerce Development

  • 10% Web Development

  • 10% Digital Marketing

  • 10% Blockchain Development

  • 10% AI Development

  • 10% Product Engineering services

  • 10% CMS

  • 10% Web Design

Here's to building smarter, faster, and better digital products together

Frenchy Digital is a Los Angeles–based mobile app development company specializing in AI-powered software solutions for startups and enterprises. Founded in 2019, our team has successfully delivered 50+ custom mobile and web applications across industries including event platforms, insurance technology, social networking, entertainment, and CRM integrations. We provide end-to-end development services including native iOS and Android app development, cross-platform development with React Native and Flutter, AI and machine learning integration, custom web application development, API integration, and UI/UX design. Our developers leverage modern technologies such as React, Next.js, Node.js, Python, Django, and cloud platforms like AWS and Google Cloud, along with advanced AI frameworks including OpenAI, TensorFlow, and Hugging Face. As a minority-owned digital agency with offices in Los Angeles, Paris, and North Africa, Frenchy Digital brings diverse perspectives and global expertise. We partner closely with clients from product strategy and MVP development to launch and long-term support, delivering scalable, intelligent digital products that drive innovation and business growth.

View Frenchy Digital LLC Profile
Inside Service Listing

$50-$99/hr

Hourly Rate
Inside Service Listing

$25,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

California, USA

Location

2

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

2

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 20% Mobile App Development

  • 20% Ecommerce Development

  • 20% Web Development

  • 10% Web Design

  • 10% Product Engineering services

  • 10% AI Development

  • 10% Software Development

Let's build awesome

SDI is a global software development company delivering innovative digital solutions to businesses for over 20 years. We specialize in custom software development, mobile app development, web design and development, and digital marketing services, helping organizations transform ideas into scalable digital products. Our team of 200+ certified professionals and 30+ UI/UX experts collaborates closely with clients to create tailored solutions that align with their business goals. With offices in California, Melbourne, and multiple locations in India, SDI has served 5,000+ clients worldwide and successfully delivered 2,000+ applications across industries including finance, education, healthcare, enterprise, social networking, and startups. Trusted by brands such as Pepsi, Stanford University, and Marvell, we focus on building high-performance applications, responsive websites, and growth-driven digital strategies that help businesses innovate, scale, and compete in today’s digital landscape.

View SDI - Software Developers Inc Profile
Inside Service Listing

< $25/hr

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

California, USA

Location

2

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

2

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 20% Mobile App Development

  • 20% Software Development

  • 20% Web Development

  • 10% Web Design

  • 10% Product Engineering services

  • 10% IT Services

  • 10% Cloud Computing Services

Turning ideas into powerful digital solutions

MindK is a global software development and IT consulting company that helps businesses build digital products, modernize legacy systems, and optimize technology infrastructure. Headquartered in California with engineering teams across Central and Eastern Europe, MindK delivers scalable, cloud-driven solutions for startups and established enterprises. The company has collaborated with well-known organizations such as Adidas, Nokia, Paramount, Roblox, and Levels.fyi. MindK provides end-to-end services including product development, MVP and PoC creation, software re-engineering, cloud migration, IT consulting, and team augmentation. Their experienced engineers help organizations automate processes, rebuild legacy applications, and develop modern cloud-native platforms that improve performance and scalability. As a certified AWS partner, MindK specializes in building secure, high-performance cloud solutions tailored to business goals. The team applies Agile development practices, proactive project management, and strong quality standards to ensure predictable delivery and long-term success. MindK has particular expertise in industries such as healthcare, e-learning, recruitment and HR technology, and energy and sustainability, helping companies innovate faster and create impactful digital solutions.

View MindK Profile
Inside Service Listing

$50-$99/hr

Hourly Rate
Inside Service Listing

$25,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

California, USA

Location
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