DN5F Studio • Mobile App Studio

Crafting Focused,
Privacy-First iOS Apps

Independent mobile development dedicated to building clean, high-performance, and hardware-integrated software that respects user privacy.

Our Applications

NeckAlign App Icon

NeckAlign: Posture Tracker

iOS App • Health & Productivity

Tired of tech neck and slouching at your desk? NeckAlign is your personal, invisible posture coach. Using the built-in motion sensors in your AirPods, NeckAlign gently reminds you to sit up straight and build healthier habits without requiring extra wearables.

  • AirPods Integration: Real-time head and neck tilt tracking with Apple CoreMotion
  • Background Training: Active session monitors posture while you work, code, or listen to audio (Free: 1 session/day up to 15 min; Pro: unlimited sessions up to 4 hours)
  • Customizable Sensitivity & Delays: Set bad position limits and smart alert delay thresholds
  • 100% Private: Zero tracking, zero telemetry — completely on-device

About DN5F Studio

DN5F Studio is an independent mobile software studio. We build native Swift applications designed with attention to detail, smooth user experience, and a strong conviction that utility apps should never track users or harvest personal data.

For developer inquiries, business questions, or support, contact us at contact@dn5fstudio.com.