The "１級建築施工管理技士受験対策2nd ver." app is an educational tool designed for individuals preparing for the １級建築施工管理技士 (First-Class Architectural Construction Management Engineer) exam. With a total download count exceeding 500,000, this app offers a comprehensive collection of past exam questions, including 1,344 historical questions and 4,522 true/false questions spanning 17 years (from h19 to r05). It covers subjects such as "建築学" (Architecture), "共通" (Common), "施工" (Construction), "施工管理" (Construction Management), and "法規" (Regulations).

The app's features include past exam questions in multiple-choice format, true/false questions with explanations, reference materials, a memorization notebook in a unique format, a performance tracker, and customizable settings. Users can benefit from random question order, detailed explanations for correct and incorrect answers, and the ability to reference materials while answering questions for effective learning.