Comparison Guide 2026 TestAS vs. TestDaF: What's the Difference, and Do You Need Both? Two distinct major examinations, both developed and administered by g.a.s.t. (Gesellschaft für Akademische Studienvorbereitung und Testentwicklung e. V.), both targeting prospective international students in Germany — but evaluating completely different domain competencies. Here is the ultimate, publication-grade guide to how they differ, how universities evaluate them, and how to determine your exact application requirements. 👉 Practice TestAS & TestDaF Free: testasprep.netlify.app Figure 1: TestAS and TestDaF serve distinct roles in the German higher education admissions framework. If you are planning to study in ...