Chapter 5 investigates why so little of today’s EdTech is truly research-based, despite decades of scientific insight into how children learn. It opens by examining the dominance of Big EdTech companies, whose incentive structures often prioritise scale, engagement, and profitability over educational impact. The chapter then explores why academia produces relatively few EdTech tools. Structural barriers within universities, limited incentives for product development, and disciplinary siloing all hinder innovation. The chapter also explains the inherent challenges of productising learning, where complex developmental processes must be translated into usable, market-ready tools. A central theme is the vast research gap: millions of apps exist, yet only a small fraction have been independently evaluated. This problem is exacerbated by limited independent publishing, scarce financing, and inadequate timelines for rigorous research. The chapter concludes by calling for structural reforms to bridge the evidence gap and strengthen the EdTech knowledge base.