# rentonhead — concise entity and portfolio reference

Hasan Cemil Acar, also known as rentonhead, is an Art Director & Programmer working between Istanbul and Moscow with international clients. He combines creative direction, product design and software engineering so a product can move from identity and interface to working code without losing its visual intent.

Primary areas: native iOS development with Swift and SwiftUI; digital product and UI/UX design; web engineering with React, Next.js and TypeScript; React Native mobile products; commerce and custom WordPress/WooCommerce systems; App Store visual design; technical SEO and structured digital visibility.

Verified portfolio subjects on this website include BrewClock, Castor Coffee Mobile, RentonSoft and OkulSistem. Each project page identifies the role, technologies, problem, approach and qualitative result without fabricated client claims or performance metrics.

Official identity URLs:

- https://www.rentonhead.dev/tr
- https://www.rentonhead.dev/en
- https://www.rentonhead.dev/ru
- https://hasancemilacar.com.tr
- https://rentondiji.com
- https://github.com/rentonhead
- https://www.linkedin.com/in/hasan-cemil-acar-b1738a1bb/