rentonhead
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Hasan Cemil Acar · rentonhead

Independent creative technology practice · Istanbul ↔ Moscow

Art direction and engineering, in one continuous practice.

I’m Hasan Cemil Acar, known as rentonhead — an Art Director & Programmer designing and building native apps, digital products, modern web experiences and brand systems for international teams.

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Selected collaborations · Worldwide

Selected work

Products shaped from first idea to working system.

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Capabilities

Creative direction with technical consequence.

Capabilities
01

Product & Creative Direction

Positioning, product narrative, interface direction and visual systems that give the work a coherent point of view.

Output
Direction · Product framing · Design systems
Tools
Figma · Adobe Creative Suite
02

Native iOS Development

Purpose-built iPhone experiences with a native interaction model, clear architecture and an App Store-ready delivery path.

Output
SwiftUI apps · Prototypes · App Store delivery
Tools
Swift · SwiftUI · Core Data
03

Web Engineering

Fast, accessible product and portfolio experiences with a maintainable component and content architecture.

Output
Web products · Frontends · Design systems
Tools
Next.js · React · TypeScript
04

Commerce & WordPress Systems

Commerce flows and custom operational tooling that extend WordPress and WooCommerce around real business needs.

Output
Stores · Plugins · Integrations
Tools
PHP · WordPress · WooCommerce
05

Brand & App Store Visuals

Identity systems, launch graphics and App Store narratives that translate product value into a clear visual story.

Output
Identity · Launch kits · Store visuals
Tools
Figma · Photoshop · Illustrator
06

SEO & Digital Visibility

Technical foundations and structured content that help people and AI-assisted search understand the product accurately.

Output
Technical SEO · Content structure · GEO
Tools
Next.js Metadata · Schema.org · Search Console

Design + engineering

The visual idea survives the build.

Strategy, interface design and implementation happen at the same desk. Technical constraints inform the concept early; the design system stays intact through SwiftUI, Next.js, React Native or WordPress delivery.

SwiftUINext.jsFigmaReact NativeWordPress

Working method

A small, direct process with fewer handoffs.

  1. 01

    Discover

    Clarify the real problem, audience, constraints and signals of success.

  2. 02

    Define

    Set the product narrative, information architecture and technical direction.

  3. 03

    Design

    Build the visual system and interaction model around real content.

  4. 04

    Build

    Turn the approved direction into a responsive, maintainable product.

  5. 05

    Refine & ship

    Test edge cases, performance and accessibility before release.

Brand network

One person, three distinct contexts.

rentonhead is the global creative technology practice. The Turkish personal profile lives on HasanCemilAcar.com.tr; commercial digital services for businesses in Türkiye live under RentonDiji.

Hasan Cemil Acar Turkish profile ↗RentonDiji Business solutions in Türkiye ↗

Contact

Have a product that needs both a point of view and working code?

Share the context, desired outcome and timing. A short email is enough to start.

Email Hasan