Istvan is a software engineer and entrepreneur, and the founder of PlanArty, a precision time-tracking and profitability tool for service businesses.

With more than two decades of experience managing projects, clients, and teams, he understands both the freedom and the challenges of working independently.

Through The Successful Freelancer series, Istvan shares clear, experience-based insights that help freelancers and small service providers build stable, confident, and profitable careers ? without losing their balance or integrity along the way.

When he's not writing or building systems, Istvan enjoys quiet life in the countryside, exploring ideas that connect productivity, purpose, and long-term freedom.