We’ve researched and ranked the best California HTML5 mobile app development agencies that build sophisticated and high-quality apps that help brands drive more loyal customers and sales. Compare listings by past work, reviews, cost and size to pick the best fit for you.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

Jungle Creatives
VerifiedVerified by the DesignRush team for authenticity and credibility.Award WinnerRecipient of a Best Design Award for outstanding work.Where Vision Meets Creativity
Jungle Creatives builds brands that stand out and digital products that perform combining strategic design, UI/UX, web development, and motion to drive real, measurable growth...
Top Services:
- Branding
- Web Design
- Web Development
- SEO
- Mobile App Development
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $60/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 45 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsJungle Creatives Services
Data sourced from the agency's DesignRush profileZiefah Health We Secure 2MO BSides Belgrade Unikat ITIN Oguz Law Kevin Romanet Physiotherapy BeST Belgrade Entropy Community
Jungle Creatives Reviews & Testimonials

Web Development Review from Radomir Mikić
Working with Jungle Creatives was an amazing experience. They delivered our website for Entropy Community in just 7 days, and the quality exceeded all expectations, both the website itself and the backoffice/dashboard experience are top-notch.The team was extremely fast, efficient, professional, and easy to work with throughout the entire process. Everything was delivered on time, communication was smooth, and the final result feels premium in every aspect.Highly recommended to anyone looking for a reliable and high-quality web agency.

Web Development Review from Olgu Uysal
I have been working with Jungle Creatives for a long time, and they have never disappointed me. I am very meticulous about my work and have high expectations, especially regarding design and technical execution. Jungle Creatives consistently delivers high-quality results that often exceed my requirements. Their professionalism and project management are rock solid. I highly recommend working with them!

Web Design Review from Nevena Žeželj
Working with Jungle Creatives has been an outstanding experience from start to finish!!They are a group of truly exceptional, creative, and highly talented individuals who go far beyond just technical skill.. What impressed me personally the most is their ability to deeply understand what a brand stands for and translate that seamlessly into both powerful visual identity and compelling copy.From our very first meeting, everything felt aligned and effortless. The entire process from initial conversations to final project rollout was smooth, professional, and extremely well-structured.Timely delivery, excellence, and reliability are exactly what define their work I would say.I can wholeheartedly recommend Jungle Creatives to anyone looking for a team that not only delivers, but truly elevates your brand. I mean this from the heart.Cheers,Nevena
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsSoftware, mobile and SaaS application development since 2004.
We are located in beautiful Phoenix, Arizona, and we can meet you in person anywhere in Arizona or Southern California. We have clients coast to coast and we have a long and proud history as a technology advocate for small business. To learn more, call us at 623-845-2747 or visit datatitan.com...
Top Services:
- Mobile App Development
- Software Development
- IT Services
- Digital Services
- Digital Strategy
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsData Titan Services
Data sourced from the agency's DesignRush profileUnited States Air Force Fidelity National Financial The University of Texas at San Antonio Continental Floral Greens International Insurance Group Cupid Nation Blue Sky Communications Nitti Builders Edvance Research Vilore Foods Internationa
Data Titan Reviews & Testimonials

Software Development Review from Emma Bowers
John Tomblin has served as the software architect and Chief Technology Officer for our software startup, LabPair, for the past two years. During this time John has played an essential role in developing the LabPair software, helping us hone our business model, and plan our launch strategy. I have been delighted with John's services and look forward to our continued partnership.John enjoys a high degree of success as a developer because he is able to engineer software solutions for a variety of marketplaces, no matter how complex or niched. In additional, he has a highly orchestrated, efficient, time- tested process that he uses to scope software projects and get them programmed to clients' specifications. I have been especially appreciative of how John and his team have been both forthright and accurate in estimating the time and cost associated with project development. By far, my favorite part about working with John is his jovial personality, can-do attitude, and excellent communication skills.

Software Development Review from Thomas Canale
In 2022, I realized that I needed to find a software development firm capable of designing and developing a SaaS application that would serve the real estate community's need to create reliable, usable, Competitive Market Analysis (CMA) reports, but do so in such a way that also reduced the creation time by as much as 95%. After meeting John and his team, and talking for several weeks about my project, I knew instantly that Data Titan was the right company. Not only were they attentive to every detail of the project, but they also remained vigilant with communications, managing change orders, and keeping to the exact time schedules set for the two-year project, and its numerous phases. Additionally, John's company used 'Scope Atlas', their company's software development application system, to design every screen before any programming work. Having now been through a two-year development process, I realize this project would have never launched without 'Scope Atlas', John's leadership, his senior team, and most importantly, his considerable expertise and insight in the software development sector. I wholeheartedly recommend John and his company for any software or mobile app development project you may be considering. Thank you.
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Software Development Review from Kara Peterson
Have you ever had a dream? Have you envisioned greatness? This is who I am, I had the idea, but it was just out of my grasp. John Tomblin is in the business of making your creativity and genius a reality. When I first reached out to John, I thought I was on one track. I have a habit of seeing the end, but all of the details are distractions and I had not given them any thought. I was completely unaware of the scope of my project. John did a year long scope and sequence with me, that turned into consulting. He showed me that there is so much more than the end product. I have worked with technology companies in the past and they do one thing really well, they develop technology. John looks at the project holistically. From when the consumer/customer first engages with your product, to how they will actually purchase the product, to the ease of use of the technology, to the performance of your product, to the marketing - how will you first find these customers, and so much more. John is detail oriented and very organized. Nothing slips past him because of his methodology with his wireframes. He holds weekly meetings to make sure the client (me) and he have both done our "homework" to move the project forward. The meetings also ascertain that we are both on the same page about the project. Working with John is a pleasure; I look forward to our weekly talks. I am certain that he is "on my side" and is looking out for my best interests. The world has gotten very small and it is easy to find someone to build your product. However, it is not easy to find someone who will listen to your dream, help you reach it, look out for your best interests and whom you can put complete faith in.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsAutomate Innovate Dominate.
HashStudioz Technologies is an award-winning product development company providing innovative IT solutions to clients from startups to Fortune 500 firms. With a team of over 1,000 experts, they have successfully completed 200+ projects, offering advanced technologies such as IoT, Blockchain, Cloud Computing...
Top Services:
- Software Development
- IoT
- Mobile App Development
- DevOps Consulting
- Cloud Consulting
- Show more
- Location
- Altadena, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsHashStudioz Technologies Services
Data sourced from the agency's DesignRush profileTHINK Gas Fyrii JoyScore
HashStudioz Technologies Reviews & Testimonials

Software Development Review from Ryan Kenning
HashStudioz Technologies is a huge contributor in helping us update our systems. They've built internal portals for our customer base and our dealer base, and as we continue to grow, we use them to enhance those two solutions they created for us.Regarding the process, we start with a meeting to lay out what we want, whether it's a solution or an upgrade to a solution. We look to them for advice and insight, what theyve seen, and what they think is the best way for us to go theres back and forth communication regarding getting everything set up. After that, they put out a great statement of work for us and have a kickoff meeting to start the task weve known each other for so long that everything is routinary.we are delighted with the functionalities that HashStudioz Technologies has developed over the years, which has streamlined our processes. we also praise their friendly approach to explaining things and making everything smooth.

Software Development Review from Dan Moscatiello
We evaluated several proposals and HashStudioz Technologies provided a solution that best fit our organization. There were several vendors and we were satisfied with our options and ultimately selected Fingent.The software had to account for company data, student data, course data and bring those data points together in a complete CRM package. The software is effective and improving our business efficiency and performance.Overall, the engagement with HashStudioz Technologies yielded positive results.They collaborated well with us. Moreover, the team was responsive and accommodating to our needs and change requests.

Software Development Review from Robert Learney
HashStudioz Technologies developed our devices UX/UI so we could view and pull data. The goal was to have interface capabilities to turn the data into explainer graphs and the ilk. At the beginning of the project, I provided HashStudioz Technologies team with Arduino-based demo boards that interacted with specialized frontend hardware that captured usable data. I also gave HashStudioz Technologies information about the protocol and data format I was using. HashStudioz Technologies delivered a usable UX/UI that met our needs within two sprints, despite working with hardware they had no experience with. we were satisfied with HashStudioz Technologies's work and project management we had sprint review meetings and project progress meetings with the project manager.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsCustom Software That Works In The Real World
SoftDoes is a Kansas City custom software and AI development company that designs and builds web platforms, mobile apps, MVPs and AI automation. Written scope and price before code, 100% IP ownership, rated 5.0 on Clutch...
Top Services:
- Software Development
- AI Development
- Mobile App Development
- Web Development
- UI/UX Design
- Show more
- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $75/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 10 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSoftDoes Services
Data sourced from the agency's DesignRush profileAltera Brizacorp Color and Harmony FMY Orthodontics Ulala WIX Reclaim Route One Consultancy PacificWest GLS Media LLC
SoftDoes Reviews & Testimonials
Yuliia Ten's Review Sourced from Google
I started working with SoftDoes when our product had already grown beyond the point where small fixes were enough. We needed to rethink several parts of the system and make sure the next stage of growth would not create even more technical debt.The team got into the project fast. Within the first few weeks, they helped us identify the main bottlenecks, clean up several fragile integrations, and improve the parts of the platform that were slowing us down the most.One practical result was that a key operation that used to take around 4-5 minutes now takes less than a minute. I also saw a noticeable drop in recurring technical issues after the release.What I liked most was the way they worked with us. Very little ceremony, clear communication, good technical judgment, and a strong sense of ownership.I’d be happy to work with SoftDoes again on another complex software project.
Ryder Mackey's Review Sourced from Google
My experience with SoftDoes has been extremely disappointing. Their communication is terrible, the people I dealt with were highly unprofessional, and their pricing is absolutely outrageous compared to the value of the work being delivered.One of my biggest concerns is the company’s lack of transparency. From what I’ve observed, their development work appears to be outsourced to people in Ukraine through another company called Come Back Agency. Even when I searched for SoftDoes online, its website appeared to redirect to Come Back Agency.Take a look at their LinkedIn yourself. They present themselves as a Kansas City-based company, yet I couldn’t find a single employee listed as being based in Kansas City. That raises serious questions about their business structure, where their team actually operates, and who you’re really paying to develop your software.My interactions with the CEO, Orest, were particularly unpleasant. I found him extremely arrogant, dismissive, and condescending. He speaks to customers as though they’re beneath him. Rather than addressing legitimate concerns professionally, his attitude made an already frustrating experience even worse.Their Google reviews also raised serious red flags for me. Several reviewer profiles appeared to have AI-generated profile pictures, and the reviews themselves read as though they were written by ChatGPT rather than genuine customers. Many of these accounts had only ever reviewed SoftDoes.After I confronted them about these concerns, I noticed that some profile pictures had been changed to what appeared to be stock images, and the accounts had gained an additional review of random places. I cannot independently verify who operates these accounts, but the timing and patterns made me seriously question the authenticity of their online reputation.Nothing about my experience with SoftDoes has inspired trust. If you’re looking for custom software development, do yourself a favor and look elsewhere. Verify who you’re actually doing business with, who will be developing your software, and what you’re paying for.
Kevin Parker's Review Sourced from Google
We had been running a large part of our business through spreadsheets and a mix of different tools for years. We've grown past spreadsheets now. SoftDoes built a custom platform around the way our team actually works. That's probably what we appreciated most about working with them.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsDesign that eats
Memeador is a product design collective that believes design should earn attention. We take on work only when we can make it win and we say so when we can't. Our members are senior practitioners who act as strategic partners, bringing rigor, taste and humanity to products people actually love...
Top Services:
- Product Design
- Web Development
- Mobile App Development
- AEO
- UI/UX Design
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $175/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 2 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsMemeador Services
Data sourced from the agency's DesignRush profileAgent37 Trendwitch Intelligence Khora Energy
AI-driven custom software development for complex, high-growth industries.
NEKLO is an international custom software development partner. Since 2008, weve specialized in building and scaling digital products for high-stakes industries, including Healthcare, Fintech, Energy, and Construction...
Top Services:
- AI Development
- Software Development
- Mobile App Development
- Product Design
- Software Testing
- Show more
- Location
- Burlingame, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsNEKLO Services
Data sourced from the agency's DesignRush profileLulu and Georgia Raken Planet Blue Belleze My1stYears JustBeeKids Complete Solar Call Loop Implentio TeamDays
Best award-winning software development company in South Korea.
Time Tec South Korea is a top-rated, multi-award-winning software development company providing a full suite of services and solutions like mobile application development, software development, Microsoft Dynamics 365 development, web development, ServiceNow consulting, and cybersecurity consulting to small...
Top Services:
- Software Development
- AI Development
- Mobile App Development
- Cybersecurity
- Show more
- Location
- Roseville, California
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsIn Time Tec South Korea Services
Data sourced from the agency's DesignRush profileTruckStop Rise Services Fullbay
We Elevate Brands From Good to Great.
At AlphaSquad Technologies, we transcend mere development to craft transformative digital experiences. With unmatched proficiency in Web Development and Mobile Application Development, we pave the way toward an innovative, digitally evolved landscape. Our specialization lies in pioneering Website Design...
Top Services:
- Mobile App Development
- Digital Services
- Product Design
- Web Design
- UI/UX Design
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAlphaSquad Technologies Services
Data sourced from the agency's DesignRush profileSigmaGo Solutions Calonic JoinMil Sunkara Edufeel
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