Mihai Bold

Hey, I'm Mihai,

Mobile-First Engineer
& Advisor

13+ years taking apps from zero to hero. Detail-oriented, best practices obsessed, and shipping polished mobile experiences with Swift, SwiftUI, React Native, and Expo.

What I Do

13+ Years Experience
20M+ Users Reached
30+ Apps Shipped

Across personal and client projects

Native iOS Development

Swift, SwiftUI, and Objective-C across every iOS generation. I build apps with clean architecture, smooth animations, and pixel-perfect UI. Performance and user experience are non-negotiable.

Cross-Platform Excellence

React Native and Expo for when you need iOS and Android without compromise. TypeScript-first, well-tested, production-ready.

Team Leadership

Leading mobile teams with clear communication and proactive problem-solving. Mentoring engineers and establishing best practices.

Full-Stack Capable

Comfortable across the stack. Firebase, real-time systems, and modern web with Astro, React, and Next.js.

Technical Advisory

Helping startups and teams with architecture decisions, product strategy, and mobile-first thinking.

AI-Augmented Development

Staying ahead with the latest AI tools. Daily driver of Claude Code, Cursor, and more. Leveraging AI to ship faster while maintaining quality.

Tech Stack

Icon size reflects experience level

Languages
Apple
UI
Cross-Platform
Tools
Cloud
Web

Apps I've Built

Photography has been my lifelong passion—these apps are born from it. From professional depth of field calculators to film simulation cameras, I build tools that help photographers capture their vision. Plus a few fun utilities along the way.

Photography

Grayn icon

Grayn

FreeIn-App Purchases

Film simulations for iPhone

Transform your iPhone into an analog film camera with 18+ authentic film simulations and professional photography tools. From color stocks like Portra 400, Ektar 100, and Cinestill 800T to black & white classics like Tri-X 400 and Ilford HP5—capture photos with vintage film looks applied in real-time. Features a minimal design focused on intentional photography with no subscriptions and no ads. Import your own Lightroom presets or share custom simulations via QR codes.

DOF Slider icon

DOF Slider

FreeIn-App Purchases

Depth of field, simplified

A depth of field calculator designed for photographers who want quick, accurate results. Select from hundreds of camera models from major manufacturers, then adjust three intuitive sliders for distance, aperture, and focal length to instantly calculate your depth of field. The minimal interface is designed for one-handed operation, with your thumb positioned for precise control. Supports both metric and imperial measurements.

Appselent collab
DOF Pro icon

DOF Pro

$5.99

Professional depth of field

Building on DOF Slider's foundation, DOF Pro adds the ability to save and load custom settings for different projects—perfect for photographers who work across multiple cameras and setups. With 500+ cameras including vintage and modern models, extensive customization options, and haptic feedback for tactile adjustments, it's the professional's choice for depth of field calculations.

Appselent collab
DOF Cinema icon

DOF Cinema

$11.99

Depth of field for filmmakers

Tailored specifically for cinematographers and filmmakers, DOF Cinema includes an extensive camera library featuring Arri, Blackmagic, Red, Panasonic, and Sony cinema cameras. Covers film formats from Super 16 to Full Frame and medium format. Save your favorite settings as presets and recall them instantly across projects. The streamlined interface reduces distractions during setup on-set.

Appselent collab

Let's Connect

Whether you have a project in mind, want to collaborate, or just want to say hi, I'd love to hear from you.