About
Hi, I'm Charles Feinn, the engineer behind AppSimple. I specialize in building practical AI solutions and user-focused mobile applications.
My Path to Practical AI
My route to combining mobile development and applied AI wasn't conventional, but it was driven by a consistent theme: a fascination with how complex systems connect, interact, and learn. This started early, leading me to co-found a music technology company focused on online collaboration back in the MySpace era – essentially, a social network with embedded audio editing tools.
When the iPhone arrived, I saw the next evolution of connection and interaction. I dove headfirst into mobile, teaching myself Objective-C and dedicating years to building native applications. This period wasn't just about coding; it was an intense education in creating technology that was intuitive, reliable, and genuinely solved problems for users. It ingrained a discipline of practical, user-centered implementation.
Yet, that underlying fascination with learning systems never waned. As AI and Machine Learning matured, I recognized it as the culmination of my interests – a powerful way to build systems that could truly adapt and learn. It felt like the missing piece I'd been searching for since my earliest explorations into network dynamics.
Today, AppSimple exists at the intersection of these experiences. I bring the practical discipline of building polished mobile applications to the potential of applied AI. My goal isn't just to implement the latest AI techniques, but to do so in a way that's grounded, effective, and delivers tangible value – informed by years of making technology work in the real world.
Experience Highlights
My Approach
I believe in the power of technology to solve real business problems, but I'm also pragmatic about its limitations. My approach is built on three core principles that apply equally to mobile development and applied AI:
Practicality First
I focus on solutions that deliver tangible results, not theoretical possibilities. Every implementation is designed to solve specific business problems efficiently, whether it's a mobile app or AI system.
Clear Communication
I translate complex technical concepts into plain language, ensuring you always understand what's possible, what's not, and why certain approaches are recommended. This is especially important when working with emerging AI technologies.
Long-term Partnership
I don't just deliver and disappear. My goal is to build a lasting relationship where I can continue to support your technology journey as your needs evolve and new capabilities become available.
Technical Expertise
My technical background spans several key areas:
Mobile Development
Native iOS and Android development, cross-platform solutions, user experience design, and integrating mobile applications with business systems.
Machine Learning & AI
LLM evaluation frameworks, prompt engineering, custom ML pipelines, AI integration strategies, and intelligent document processing systems.
Workflow Automation
Design and implementation of automated processes that reduce manual effort and increase accuracy using AI tools and mobile solutions.
Hybrid Solutions
Creating systems that combine mobile interfaces with AI backends, integrating on-device AI features with mobile UX, and developing cross-platform hybrid applications.
Let's work together
Whether you need a mobile application, an AI-powered solution, or a solution that combines both technologies, I'm here to help bring your vision to life with practical, user-focused technology.
Get in Touch