Hire the Best App Developers in Los Angeles, CA

Hi, I'm Stephen ✌️ 𝐇𝐚𝐯𝐞 𝐚𝐧 𝐢𝐝𝐞𝐚 𝐛𝐮𝐭 𝐈 𝐝𝐨 𝐧𝐨𝐭 𝐤𝐧𝐨𝐰 𝐡𝐨𝐰 𝐭𝐨 𝐬𝐭𝐚𝐫𝐭 𝐚𝐧𝐝 𝐰𝐡𝐞𝐫𝐞 𝐭𝐨 𝐠𝐞𝐭 𝐟𝐢𝐫𝐬𝐭 𝐮𝐬𝐞𝐫𝐬? That gap is exactly where I work best. I've spent 6 years building and shipping consumer apps, AI products, and marketplaces. I started Blupalms at 21, right after building and selling my first app in college — and I still run my own apps today. One has passed 500,000 downloads (portfolio below). What that's added up to: 🏆 Multiple App Store chart placements 📲 5M+ downloads across products I've shipped 🔁 $20M+ processed through the marketplaces I've built ⭐ 100% Job Success & Top Rated Plus across 100+ Upwork projects When you hire me, you get me — not a sales call followed by a handoff to a junior. I own the full path: strategy, design, build direction, and launch. I bring in senior engineering when the scope calls for it, but the product thinking stays with me from day one. Start with a free app audit. Send me what you have and I'll send back a clear, prioritized breakdown of exactly what's standing between your app and a real launch. Real value, no strings: it's yours to run with whether or not we keep working together. If we build together, here's how it goes: 🎯 Strategy — We lock the core loop, the must-have v1 scope, and the launch plan. What ships, what waits, and why. 🎨 UI/UX Design — Full design of every screen and flow, built to convert, not just look good. You approve the direction before anything gets built. 🛠️ Development — I direct the build with senior engineering support, keeping the product decisions with me. You get regular check-ins, not a black box. ✅ QA — Every flow tested across devices before it goes anywhere near review. We catch it, not your users. 🚀 Release Support — I handle the App Store submission gauntlet and stay on it until you're approved and live. 🔁 Ongoing Advising — Post-launch, I help you read the data and decide what's next: retention, monetization, and growth. My guarantee: If I don't deliver a design direction you're excited to build on, your deposit comes back in full. And once we're building, I stay on until your app clears App Store review. If you're serious about building your app the right way, send me a message and let's talk! Excited to see what we build.