Our expert analysts identified the leading mobile app developers in California that create high-performance apps that engage and retain their user base. Filter listings by city, team size, cost of services and reviews to personalize your search. Choose the best partner for your brand and take advantage of these agencies' expertise and experience.

United States × California × Entertainment × $50,000 & Up × Clear Filters
  • Azumo

    Verified Verified by the DesignRush team for authenticity and credibility.

    Build Intelligent Apps for Web, Mobile, Data, AI and Cloud

    Azumo has been building intelligent apps since 2016, offering expertise in custom native and cross-platform app development. It boasts a 150% client retention rate and a client portfolio of 100+ businesses, including Meta, Omnicon Media Group, and United Healthcare...

    Top Services:

    • AI Development
    • Software Development
    • Staff Augmentation
    • Mobile App Development
    • Big Data Analytics
    • Show more
    Location
    San Francisco, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    9 Projects Listed

    Azumo Services

    • AI Development
    • Software Development
    • Staff Augmentation
    • Mobile App Development
    • Big Data Analytics
    • DevOps Consulting
    • Cloud Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Discovery Channel
    • Meta
    • Zynga
    • Jostens
    • Assembled Brands
    • NGL
    • NCSoft
    • Twitter
    • Horoscope.com
    • Bento
    Data sourced from the agency's DesignRush profile

    Azumo Reviews & Testimonials

    • Michael S.
      Michael S. Director at Software Development Company
      5.0

      Software Development Review from Michael S.

      We selected Azumo to develop our software. We transitioned from another development company, so Azumo was initially responsible for migrating our existing code and environments. We are currently still working with Azumo as our nearshore software development team on adding new items to our software.

    • Anonymous
      Anonymous CTO at Healthcare Company
      5.0

      UI/UX Design Review from Anonymous

      Azumo helped us migrate our existing UIs into a new framework, creating reusable components and the infrastructure needed for future development. The developer they assigned became a seamless part of our team, always punctual, responsive, and a great fit overall.

    • Anonymous
      Anonymous VP Product & Engineering at Sales & Mktg Software Company
      5.0

      Software Development Review from Anonymous

      Thanks to Azumo’s work, our product is now more scalable, optimized, and ready for a growing user base. Their team has managed the engagement effectively, keeping us updated and addressing any challenges along the way. We’ve appreciated their constant availability and proactive communication.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Talentica Software

    Verified Verified by the DesignRush team for authenticity and credibility.

    Building Products AI-Native Way

    Talentica specializes in mobile and wearable apps spanning BLE/NFC integrations, cybersecurity SDKs, and AI-native features, using an AI-powered engineering approach that cuts cycle time by 50%. With 22 years of experience, it has shipped 200+ products and supported 30+ successful client exits...

    Top Services:

    • Software Development
    • AI Development
    • IT Services
    • Big Data Analytics
    • Blockchain
    • Show more
    Location
    Pleasanton, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    7 Projects Listed

    Talentica Software Services

    • Software Development
    • AI Development
    • IT Services
    • Big Data Analytics
    • Blockchain
    • Mobile App Development
    • Staff Augmentation
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Wideorbit
    • Sema4.AI
    • Realization Technologies Inc.
    • TailoredMail
    • StructuredWeb Inc
    • Amplify
    • Mist Systems (Juniper Company)
    Data sourced from the agency's DesignRush profile

    Talentica Software Reviews & Testimonials

    • Ashish Sharma
      Ashish Sharma Sr Engineering Manager at OpenGov India Pvt Ltd
      4.7

      Software Development Review from Ashish Sharma

      Talentica has proven to be an exceptional software outsourcing partner, consistently exceeding expectations in both the quality of their resources, deliverables and their commitment to our success. They function not merely as a vendor, but as an extension of our core engineering team. Key Highlights of our Partnership: High Resource Quality: The engineers provided by Talentica are technically strong and highly competent. They integrate seamlessly with our internal teams and quickly take ownership of complex projects. Commitment and Reliability: Talentica is a truly reliable partner that consistently demonstrates a strong willingness to go beyond the standard scope of work. They proactively identify risks and contribute innovative solutions. Critical Project Support: Their expertise was pivotal in two critical areas: Data Pipeline & Reporting: They were instrumental in both enhancing and maintaining a reliable data pipeline & reporting infrastructure. Software Upgrades: They managed challenging, large-scale software upgrades, ensuring we successfully transitioned to modern technology stacks with minimal disruption. Overall, Talentica is a dependable and high-value partner assisting our mission-critical projects.

    • Anonymous
      Anonymous Advisor at IT Company
      5.0

      Software Development Review from Anonymous

      We had created a conceptual framework to authenticate and verify the provenance, transaction history, and authorship of blockchain-based NFTs. Talentica was brought on board to test and refine the concept from both functional and engineering perspectives, and later to build a Minimum Viable Product (MVP) aligned with the agreed specifications and constraints.

    • Anonymous
      Anonymous Engineering Manager at SaaS Company
      5.0

      Software Development Review from Anonymous

      For several years, the team was composed entirely of Talentica contractors. Since January 2022, I have been directly managing them. The Talentica team handled the admin tooling backend, which included multiple Python Flask services with Postgres and Elasticsearch. These services operated in a service-oriented architecture deployed on Kubernetes, using Istio for service mesh and Spinnaker for deployments.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • AI-Native App & Enterprise Software Development Company

    TechAhead, a global leader in AI-powered custom software development & cloud engineering services, trusted by Fortune 500 companies and enterprises worldwide. We are a Great Place to Work-certified company with 240+ experts and 16 years of experience in engineering innovative, scalable applications...

    Top Services:

    • Mobile App Development
    • AI Development
    • Software Development
    • IoT
    • Staff Augmentation
    • Show more
    Location
    Agoura Hills, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    26 Projects Listed

    TechAhead Services

    • Mobile App Development
    • AI Development
    • Software Development
    • IoT
    • Staff Augmentation
    • DevOps Consulting
    • Blockchain
    • Wearables
    • Cybersecurity
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • American Express
    • Disney
    • Lafarge
    • The Times Group
    • Allianz
    • AXA
    • ESPN F1
    • Audi
    • JLL
    • DLF
    Data sourced from the agency's DesignRush profile

    TechAhead Reviews & Testimonials

    • Dolly Pundeer
      Dolly Pundeer Director of Sales at Elite Mindz
      5.0

      Mobile App Development Review from Dolly Pundeer

      We were thrilled with our experience developing a Shipping App with TechAhead. They delivered exactly what we envisioned, and the entire process was smooth and efficient. Their team was incredibly knowledgeable and always kept us informed throughout the project. The final product is not only functional but also user-friendly, exceeding our expectations. Their creativity truly stood out! When we approached them for our shipping app development, they didn't just follow a template. They took the time to understand our specific needs and came up with innovative features that enhanced the user experience for both our customers and our own staff. We highly recommend TechAhead for any app development needs.

    • Noah Kraft
      Noah Kraft CEO and Co-Founder at Wonderbelly
      5.0

      Mobile App Development Review from Noah Kraft

      It was a pleasure to collaborate with TechAhead on our mobile app development project. Their team went above and beyond our expectations with their creative ideas, showcasing their extraordinary Flutter and IoT experience. Throughout the project, their expertise and dedication were clear, and we were very grateful for their proactive grasp of our requirements. We are thrilled with the app's performance and eager to work with TechAhead again in the future.

    • Rory Bordiuk
      Rory Bordiuk Co-Founder and CEO at Cirrus Glass
      5.0

      Mobile App Development Review from Rory Bordiuk

      Techahead proven to be an essential partner on our application development project. Their team demonstrated good communication and seamless collaboration from the start, which contributed to the delivery of a high-quality product. We were particularly pleased by their ability to provide creative technological solutions that exactly matched our needs. Overall, we appreciate Techahead's service and competence and would certainly recommend them to anybody looking for great mobile app development services.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Solving complex problems with design and technology since 2005.

    Choosing Infinum ensures you partner with a mobile app development agency that transforms ideas into powerful digital solutions. Results-driven methods define our projects in user experience, scalable architecture, and seamless integration. Together, we accelerate growth and elevate your business operations...

    Top Services:

    • Web Development
    • Web Design
    • Mobile App Development
    • UI/UX Design
    • Software Development
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    250 - 499
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    24 Projects Listed

    Infinum Services

    • Web Development
    • Web Design
    • Mobile App Development
    • UI/UX Design
    • Software Development
    • Cloud Consulting
    • DevOps Consulting
    • Cybersecurity
    • Staff Augmentation
    • IoT
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Porsche
    • Nike
    • CITI
    • Royal Caribbean
    • Philips
    • Bayer
    • T-Mobile
    • P&G
    • Universal
    • Virgin Mobile
    Data sourced from the agency's DesignRush profile

    Infinum Reviews & Testimonials

    • Matic Debelak
      Matic Debelak Management Board Member at Modra zavarovalnica, d.d.
      5.0

      Mobile App Development Review from Matic Debelak

      Workstream 1: research and product strategy Workstream 2: ETP release Technology : Vendor use Flutter framework, which allows one programming language and one codebase to create two different apps (for iOS and Android). Clearly defined roles and responsibilities, communication is clearly and respectfully, very effective project methodology, trying to understand every time how their activities fits into mission of Modra zavarovalnica, respect each member of team, etc.

    • Claus-Peter Mueller
      Claus-Peter Mueller Managing Director at NLB Lease&GO doo
      5.0

      Software Development Review from Claus-Peter Mueller

      We have engaged Infinum to develop an app that would digitalise our leasing process. From creating the initial offer through the necessary financing application and client identification to the final signature – all the steps required to successfully lease a vehicle or other object can be performed in-app, freeing the users of friction and having to deal with tedious paperwork. The app itself in the background has 30+ integrations, while keeping a seamless and quick to follow process on the front for our users. That application is in production and Infinum is responsible for maintaining it and further improving. After the initial development, we have additionally expanded our scope from vehicles to other equipment. They have also developed a Leasing widget, product which enables quick financing model while purchasing a vehicle online on car seller marketplace pages. At this moment, we are still in partnership with Infinum, and their engagement is mainly focused on localising the app to other countries and supporting us in our further business expansion. The work performed was done in Ruby on Rails and React technology, with support of other services.

    • Anonymous VP of Marketing at SaaS Company
      5.0

      Web Design Review from Anonymous

      Thanks to Infinum's website refresh, the client has seen an almost 100% improvement in their website's conversion rates. The team excels at project management, using the client's own proprietary tool and also Figma very well. Their proficiency in design, delivery, and client relations stands out.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Your Innovation Partner

    ITRex delivers end-to-end AI and data solutions from strategic planning to real-world deployment. The companys expertise spans LLM integration, RAG, copilots, SLMs, and autonomous AI agents, all engineered for reliability and scale...

    Top Services:

    • Software Development
    • Mobile App Development
    • Software Testing
    • AI Development
    • IoT
    • Show more
    Location
    Aliso Viejo, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    5 Projects Listed

    ITRex Group Services

    • Software Development
    • Mobile App Development
    • Software Testing
    • AI Development
    • IoT
    • Blockchain
    • IT Compliance Solution
    • IT Services
    • Big Data Analytics
    • Cloud Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Dollar Shave Club
    • Jib Jab
    • 21st Century Fox
    • Procter & Gamble
    • Meet Me
    • Dun & Bradstreet
    Data sourced from the agency's DesignRush profile

    ITRex Group Reviews & Testimonials

    • Tammy Walker
      Tammy Walker Owner at Retail Company
      5.0

      IT Services Review from Tammy Walker

      Extremely creative and awesome company name. It sounds trustworthy.

    • Undisclosed
      Undisclosed Product Owner at Global retailer
      5.0

      Web Development Review from Undisclosed

      We are making in minutes things that our teams have been stuck with for days before.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Zoho consulting, development and integration services for operationally complex organizations.

    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

    CodeStringers Services

    • Software Development
    • AI Development
    • Web Development
    • CRM Consulting
    • ERP Consulting
    • Managed Services
    • Mobile App Development
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Tübr Storage
    • Addiction Rep
    • True Pet Kitchens
    • MasterControl
    • Tonal
    • MindTRAK Golf
    • Mido Play
    • Inboard Technology
    • SiteOne Services
    • KnowledgeDesk
    Data sourced from the agency's DesignRush profile

    CodeStringers Reviews & Testimonials

    • Lori Feld Oakley
      Lori Feld Oakley Executive VP at MasterControl
      5.0

      Software Development Review from Lori Feld Oakley

      Our Services organization is scaling quickly and we urgently needed a custom software application to automate our workflows, without breaking our annual budget. CodeStringers was the perfect fit, supporting us from ideation through go-live and everything in between. They innovated, hit their deadlines and released an amazingly high quality application that decreases our internal costs and improves our reputation with our customers. It would not have happened without CodeStringers.

    • Christian Schraga
      Christian Schraga CEO at Tabula Learning
      4.8

      Enterprise Review from Christian Schraga

      CodeStringers is the perfect outsourcer to call If you have a solid software business idea but don’t know exactly how to bring it to life. They have both a top-notch development team as well as an executive staff with expertise in marketing, finance, and general business acumen. So they can not only build a product for you but they can make sure that the product you want to build is likely to succeed in the marketplace.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Product development studio for innovators

    We are a product development studio for innovators, specializing in B2B SaaS platforms for productivity, analytics, marketing, sales, and engineering. We work with serial entrepreneurs, startup founders, and CTOs at industrial enterprises to create time through innovative products...

    Top Services:

    • Web Development
    • Mobile App Development
    • CRM Consulting
    • ECM Consulting
    • IT Services
    • Show more
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $60/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    14 Projects Listed

    Gearheart IO Services

    • Web Development
    • Mobile App Development
    • CRM Consulting
    • ECM Consulting
    • IT Services
    • DevOps Consulting
    • eCommerce Development
    • Software Development
    • AI Development
    • IoT
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • SmartSuite
    • ShootQ
    • Plair
    • SeraCare
    Data sourced from the agency's DesignRush profile
  • Elevate Your People, Process, and Products.

    TDF (The Development Factory) is a Los Angeles based product and technology consultancy that empowers companies to design, build, and deliver software more effectively. By upskilling teams, embedding expert interim product leadership, and offering seamless augmentation services, TDF enhances clients internal...

    Top Services:

    • Software Development
    • UI/UX Design
    • Web Development
    • IoT
    • Mobile App Development
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $149/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    3 Projects Listed

    The Development Factory Services

    • Software Development
    • UI/UX Design
    • Web Development
    • IoT
    • Mobile App Development
    • Big Data Analytics
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Givsum
    • Integral Healthcare Solutions
    • GetHelp
    • California Almonds
    Data sourced from the agency's DesignRush profile

    The Development Factory Reviews & Testimonials

    • Tony Greco
      Tony Greco Review from Google
      5.0

      Tony Greco's Review Sourced from Google

      TDF provided us with product management, development, and strategic consultation. We started to build the product with an individual and had initial wireframes and mock-ups, but the project quickly grew larger than an individual person could handle. TDF evaluated what we had and gave us feedback, then created a plan to replace and fix what had already been done. They started with extensive customer development-- something we missed the first time around-- so their new wireframes and plans were based on what our customers actually wanted. Then, they executed the plan. In addition to the development work, they also took care of logo and design work. They used Amazon Web Services for our platform. We have multiple features such as an API, database, and an administration tool for our own interface. We have a provider tool for facilities to update their data within the database. People can find resources on our web page, web application, and an iOS and Android app. We continue to work with them and have found it more effective and efficient to use them as a virtual outsourced department.

    • Tom Goddard
      Tom Goddard Review from Google
      5.0

      Tom Goddard's Review Sourced from Google

      We are a consulting firm that specializes in working with healthcare organizations who are seeking to become accredited, stay accredited, or are working with particular healthcare legal compliance issues that we specialize in. The management of a typical accreditation process is complex for both the applicants and consultants providing them with help, so we wanted technology to help simplify and clarify that process. The Development Factory developed and designed two important pieces of software for us that have gone through multiple iterations over the years. The most important is an online project management platform that has all of our resources in one place and allows us to have secure communications with our clients and exchange documents and feedback important to the accreditation process. The platform also provides dashboards for our clients that allow clients to track their process and see how they're doing based on our scoring system that scores any documentation that will be sent to accreditation organizations. The second piece of software TDF built is a training program called AccrediTrain. We had a training software before, but they built a new self-service version that is completely automated, allowing a client to schedule a training for their employees without having to involve any of my staff. As a result of the work TDF did for our firm, we are now able to handle a larger number of clients with the same number of staff, helping us to increase our revenues by a factor of four. Beyond that, the reactions to our platforms have been outstanding. Just recently a new client was having her first experience with Goldfinch and she said it was just amazing. Another client of ours is a competitor and asked us for help on a project. This is an organization that has a particularly sophisticated knowledge about the accreditation process, and their CEO and president was very impressed by our software platforms. They really listened to our description of what we do and how we do it and then turned that into software that quite beautifully captures what we do and how we do it. They clearly care about us and our satisfaction.

    • Shawn Wehan
      Shawn Wehan Review from Google
      5.0

      Shawn Wehan's Review Sourced from Google

      The Development Factory has been fundamental to our growth and overall development of the Givsum platform. They’ve eliminated 95% of bugs and improved the overall user experience. The team has been a great long-term collaborative partner for coding and UX/UI. High-quality designs and added features have increased the site’s potential. Highly recommended!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Transforming Your Business.

    Providing AdTech, Advertising, and Digital Services. We design, measure, implement, and ship digital products that transform companies...

    Top Services:

    • AI Development
    • Mobile App Development
    • Digital Services
    • Print Design
    • Advertising
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    250 - 499
    Minimal Budget
    $50,000 & Up

    Work & Co Services

    • AI Development
    • Mobile App Development
    • Digital Services
    • Print Design
    • Advertising
    • Design Services
    • Web Design
    • Branding
    • Digital Marketing
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Apple
    • YouTube
    • Marriott
    • Epic Games
    • ALDO
    • Panera
    • Philz Coffee
    • Aesop
    • Planned Parenthood
    • T-Mobile
    Data sourced from the agency's DesignRush profile

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