Interior design projects unfold over weeks or months, with dozens of moving parts that traditional invoicing tools don�t understand. Platforms like Ivy focus heavily on product sourcing, but often leave designers juggling time tracking, billing, and client communication elsewhere. Tympi is built to manage the entire interior design workflow, not just the purchasing side. Designers can track time spent on consultations, concept development, sourcing, site visits, and revisions, all within a single project. Each phase of work is visible and documented, making it easy to explain fees and avoid underbilling. Tympi also allows designers to bundle sourcing hours, design fees, and project management into one clean, professional invoice. Compared to Ivy, Tympi provides broader operational clarity, helping designers manage clients, time, and revenue from mood board to final install. The result is fewer billing surprises, clearer expectations, and a more polished client experience.