Web App Design & Build
500 Designs is a web and app design agency that takes digital products from strategy and UX through interface design and development, creating useful experiences built to scale.
Top 10 Firm by 50Pros 2025
5-Star Rated in Clutch
America’s Fastest Growing Private Companies
#1 for Best Branding Agency in Los Angeles
Top Recommended Provider in San Francisco
We begin every project with alignment, defining goals, audiences, and technical roadmaps so each decision drives impact and scalability.
We unite design and engineering under one roof, creating true collaboration that delivers apps that look exceptional and perform flawlessly.
We design intuitive, responsive interfaces backed by research and testing, transforming complexity into effortless engagement.
We engineer secure, flexible systems built to evolve with your business and support continuous innovation.
Professional Education / Accounting
We designed a mobile-first learning product with short lessons, guided progress, gamification, certification, and firm-level oversight for busy accounting professionals.
Result:
A mobile-first journey from onboarding through certification
Construction Technology / FinTech
We rebuilt PayeWaive’s brand and website around CFO priorities, making its payment and compliance platform easier to understand, trust, and act on.
Result:
+140%
increase in new users
Logistics / Enterprise Commerce
We combined brand strategy, customer journey mapping, UX/UI, and design systems to connect fragmented products and legacy systems through one cohesive commerce platform.
Result:
One connected experience across previously siloed systems
Aviation / Workforce Technology
We transformed scattered learning and career resources into one skills-first platform where frontline and corporate employees can find relevant roles, development tools, and next steps.
Result:
90,000+
employees supported by one skills-first platform
FinTech / Financial Wellness
We redesigned the website around clearer product journeys and more direct calls to action, helping users understand the platform and continue their financial journey through the app.
Result:
18M
U.S. app downloads supported by web-to-app conversion
Co-FounderPerfectly Tea“They really go the extra mile, delivering more than what we expect.”
Director of Brand & MarketingCPG Startup“They step in and try to fully understand the industry and issues.”
Director of MarketingFedEx“This team is the real deal. Our executive team loved the output! It’s FedEx 2.0!”
From idea to execution, we combine strategy, design, and engineering to build digital ecosystems that grow with your business.
We Define the Foundation for Success
We begin by understanding your business, audience, and technical requirements. Through workshops and research, we define the core problem, key features, and success metrics that will guide the build.
We Bring Ideas to Life Through Experience Design
Next, we transform strategy into experience. Our design team creates intuitive interfaces and workflows, wireframed, prototyped, and validated with real users to ensure usability, delight, and conversion.
We Build with Precision and Purpose
Our engineers bring the design to life building with scalable frameworks, clean code, and secure architecture. We focus on performance, integrations, and reliability, followed by rigorous testing before launch.
