Best Costa Mesa Mobile App Developers

3 Companies - Rankings updated: April 01, 2026

DesignRush evaluates each agency using expert assessment and client feedback to inform your choices. Some featured agencies have paid placements.

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United States × California × Costa Mesa ×

  • SOTATEK JSC

    Leading SDaaS & Blockchain Development Corporation

    A global Software Development as a Service (SDaaS) & IT Consulting group who delivers sustainable Blockchain Development, Software Development, including Web/App/Game Development, AI & Machine Learning, Odoo ERP with success guaranteed.  [... see all SOTATEK JSC reviews ]
    Location
    Costa Mesa, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    34 Projects Listed

    SOTATEK JSC Services

    • Web Development
    • Mobile App Development
    • Software Development
    • Web Design
    • eCommerce Development
    • AI Development
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Clients and Projects

    View Full Portfolio
    • Whole Earth World Map & Blockchain
      App Development Project Whole Earth World Map & Blockchain
    • SocialGood - The Crypto Currency for Better Society
      App Development Project SocialGood - The Crypto Currency for Better Society
    • Viewty
      App Development Project Viewty
    • YJS
      App Development Project YJS
    • Super App for Drivers
      App Development Project Super App for Drivers
    • Dating App
      App Development Project Dating App
    View Full Portfolio
    Comprehensive analysis done by DesignRush Agency Experts.

    SOTATEK JSC Reviews & Testimonials

    • Rachel Nguyen
      Rachel Nguyen Technical Manager at Icetea Labs
      5.0★
      Web Design Review from Rachel Nguyen

      After the first time partnered with Sota Tek, which was totally beyond my expectations and generated great results, Sota Tek has become our trusted agency for many later IT projects. This dedicated team of professional engineers has proved to have in-depth experiences in both blockchains and building scalable technical solutions. When working with Sota Tek, timing and efficiency were never my concerns as they were always ahead of the schedules with all the tasks. Moreover, any requested change f

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    • Shaun Cooper
      Shaun Cooper Software Development Lead at NTQ Solution JSC
      5.0★
      Mobile App Development Review from Shaun Cooper

      The client sought to craft an app enabling user interaction and fostering a community, emphasizing transparent pricing. Thanks to the advanced user experience and diverse cryptocurrency payment choices provided, the client's team shared positive responses. The final platform saw a 30% user increase. Overall, the client was quite pleased with SotaTek's efforts and would recommend it to associates. (Verified via email)

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    • Samzzy Ayomide
      Samzzy Ayomide Review from Google
      1.0★

      Samzzy Ayomide's Review Sourced from Google

      Unfortunately, my experience working with [SOTATEK GOLBAL] was not positive. While I always aim to deliver high-quality work, the project faced challenges due to unclear requirements, delayed feedback, and lack of timely communication. This made it very difficult to stay aligned on expectations and meet deadlines.Additionally, payment terms were not handled as agreed, which created unnecessary stress and delays on my side. As a freelancer, I value transparency, respect, and collaboration and I felt these aspects were missing in this engagement

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    Reviews verified by DesignRush and sourced from the agency's profile
    • Kyber Network
    • Asilla
    • MatchinGood Co., Ltd
    • CollaboGate
    • Travala
    • Viettel
    • Tomochain
    • SocialGood
    • ProximaX
    • Bộ giáo dục và đào tạo
    Data sourced from the agency's DesignRush profile
    View Profile
    4.5 4.5 (2)
    4.8 4.8 (82)

  • Tepia

    Invested in Your Success

    Tepia is a software company founded in 2012 with over 30 years of experience in web and mobile app development. We are a passionate and agile team of developers, designers, and strategists who are consistently pushing the boundaries of technology.  [... see all Tepia reviews ]
    Location
    Costa Mesa, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    2 Projects Listed

    Tepia Services

    • Mobile App Development
    • eCommerce Development
    • Software Testing
    • Software Development
    • UI/UX Design
    • Web Design
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Clients and Projects

    View Full Portfolio
    • FS Football is Sexy
      App Development Project FS Football is Sexy
    • MoodMe: Relationship Tracker
      App Development Project MoodMe: Relationship Tracker
    View Full Portfolio
    Comprehensive analysis done by DesignRush Agency Experts.

    Tepia Reviews & Testimonials

    • Dr. Lesley Kirkpatrick, MD
      Dr. Lesley Kirkpatrick, MD Founder at mindcomb
      5.0★
      Mobile App Development Review from Dr. Lesley Kirkpatrick, MD

      I had a great experience working with Tepia. Abraham, the Founder and CEO, was available, helpful, and actively involved throughout every stage of the process. Kimmy, my assigned project manager, was organized, responsive, and clear in her communication from start to finish.They anticipated potential obstacles before they became issues and approached everything with a thoughtful, solutions-oriented mindset. The team was consistently proactive, professional, and transparent. I truly appreciated their structure and ability to keep things moving smoothly. I would highly recommend working with Tepia.

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    • Robert Beknazarian
      Robert Beknazarian President at RELI - Windows & Doors
      5.0★
      Mobile App Development Review from Robert Beknazarian

      Working with Tepia Co has been an exceptional experience from start to finish. They played a critical role in developing our mobile app for RELI, and I can confidently say they exceeded our expectations on every levelFrom day one, Tepia demonstrated a deep understanding of both the technical and business sides of app development. They didnt just execute tasks they asked the right questions, challenged assumptions when needed, and helped us think through complex workflows in a way that improved the final product. Their team truly operates as a strategic partner, not just a development vendor The communication was excellent throughout the entire process. We always knew where things stood, timelines were clear, and any issues or changes were handled proactively and transparently. For a project as complex as ours involving pricing logic, user flows, financing options, compliance considerations, and scalability this level of clarity and responsiveness made a huge difference.What really stood out was Tepias attention to detail and commitment to quality. The app they helped build is stable, clean, intuitive, and built with long-term growth in mind. They were thoughtful about architecture, performance, and future enhancements, which is critical for a company like ours that plans to scale aggressively.They were also extremely flexible and patient as our requirements evolved (which happens in real-world startups). Instead of pushing back, they collaborated with us to find smart, efficient solutions that aligned with our vision and budget.If youre a founder or business owner looking for a team that:Truly understands mobile app developmentCommunicates clearly and consistentlyThinks strategically, not just technicallyDelivers high-quality, scalable workI highly recommend Tepia Co without hesitation. They have been a trusted partner in bringing RELI to life, and we look forward to continuing to work with them as we grow

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    • Ara Agopian
      Ara Agopian CEO at Solar Insure
      5.0★
      Mobile App Development Review from Ara Agopian

      I had a great experience with Tepia on our mobile app development. The project was managed very well and finished on time. Thank you Tepia!

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    Reviews verified by DesignRush and sourced from the agency's profile
    • Marugame Udon
    • MicroVention
    • Henry Schein
    • Meta
    • Irvine Company
    • Participant Media
    • Pujol's Foundation
    • MoodMe
    • RELI Solutions Inc.
    • SleepCenter of Nevada
    Data sourced from the agency's DesignRush profile
    View Profile
    4.6 4.6 (3)
    4.8 4.8 (26)

  • KWALL

    A Creative Web Agency for Higher Education

    KWALL is a boutique digital agency founded in 2007, specializing in full stack web design and development for higher education, government, nonprofit, and enterprise clients. With an inhouse team of approximately 30 experts, the firm has launched more than 800 websites and built a reputation for scalable  [... view KWALL profile ]
    Location
    Costa Mesa, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr

    KWALL Services

    • Web Design
    • UI/UX Design
    • SEO
    • Content Marketing
    • Social Media Marketing
    • Digital Marketing
    • Mobile App Development
    • Market Research
    • Graphic Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Arizona State University
    • Florida State University
    • Caltech
    • Occidental College
    • Pomona College
    • University at Albany
    • UC Santa Barbara Library
    • CSU Long Beach
    • CSU Los Angeles
    • USC Libraries
    Data sourced from the agency's DesignRush profile
    View Profile
    4.7 4.7 (3)

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About The Author and Expert Reviewer

Content Specialist

selina@designrush.com

Selina Garcia has authored 500+ articles and edited 50+ published books in economics, law, and history. Her unique blend of experiences allows her to approach content creation from a well-rounded perspective. Currently, Selina applies her expertise to producing insightful articles on IT, software, and applications for DesignRush.

Former Development Director

spotlight@designrush.com

Sergio is a technology leader with over six years of experience managing global teams and delivering projects across fintech, sportstech, and B2B platforms. At DesignRush, he drove product growth and development execution, building tools that speed up processes by 95% and cut costs by 35% while maintaining full uptime.

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