Apex Development Studio designs and ships native iOS and Android apps and mission-driven websites. Every product is private by default, built to last, and held to a standard learned in the Army and in federal IT.
A GLP-1 therapy and weight-loss companion. Log doses, see estimated medication levels, rotate injection sites, follow labs over time and walk with Strides. Health data stays on your devices and in your own iCloud.
A personal life-alignment app that brings together astronomy, numerology, feng shui and Eastern traditions. Every chart is computed on your phone, so your birth, home and family details never leave it.
HINA strengthens communities across the Pacific and Asia through trusted partnerships and local capacity. We built its launch site end to end: the research, the brand system, the copy, the build and the hosting.
Each platform gets its own code written in its own language, so the apps feel right on the phone in your hand. The same standards for privacy, accessibility and testing apply to every one.
SwiftUI apps that pass App Review and feel like they belong on the device.
Kotlin and Jetpack Compose with Material 3, kept in step with the iOS version.
Marketing sites and mission sites that load fast and are easy to keep current.
Health, community, and the everyday systems people count on. Apex builds for the needs that matter most, led by a founder whose career has been about people and systems that could not fail.
Joe McMullin is the Founder and Principal of Apex Development Studio LLC and a Senior Program Manager who leads cloud engineering and cloud security teams in secure government environments. His career runs from leading Soldiers in combat, through running 24/7 data-center and hybrid-cloud operations for federal agencies, to building native mobile apps himself. Apex is where those careers meet: dependable technology for health, community, and the everyday needs people rely on.
22 years in the U.S. Army Corps of Engineers. His service took him from developing and training new Soldiers, to planning operations at senior headquarters and joint commands, to leading Soldiers in combat.
He served overseas in Panama, Iraq and two tours in Korea, and was awarded the Bronze Star Medal and five Meritorious Service Medals.
Nearly two decades in federal and healthcare IT. His work has spanned bare-metal servers, virtualization and hybrid cloud. He was a Systems Engineer and Task Manager at SAIC, then a Technical Program Manager for a global healthcare software company, where his engineers earned government recognition for a record-breaking data-center recovery.
As Director of Operations at Navstar, he ran cybersecurity and hybrid-cloud infrastructure. At Deloitte, he led a team of 12 Program Managers on a $285M enterprise IT contract for the Defense Counterintelligence and Security Agency. Today he leads cloud engineering and security teams covering STIG hardening, ATO and RMF compliance on AWS GovCloud and Microsoft 365 GCC High.
Founder of Apex Development Studio. Joe brings everything from his military, federal and enterprise IT career into building apps that make a real impact for customers. He is hands-on: he designs and ships native SwiftUI and Kotlin apps with health integrations like HealthKit and Health Connect, as well as web platforms for mission-driven organizations.
He also practices applied AI and machine learning, including deep learning, computer vision and multi-model AI workflows. He runs the studio with the discipline he learned in uniform: plan the mission, test before shipping, and support what you launch.
Each new idea goes through the same steps: research, demand testing, and a build that passes our quality gates on both platforms before it ships.
Answer four short questions. It takes about two minutes, and your idea stays confidential. If you'd like an NDA before sharing details, say so in the last step.
Tell us about the app or site you have in mind. The founder reads every message personally.
Prefer email? support@apexdevelopmentstudio.com