The rapid advancement of Extended Reality (XR, encompassing AR, MR, and VR) and spatial computing technologies forms a foundational layer for the emerging Metaverse, enabling innovative applications across healthcare, education, manufacturing, and entertainment. However, research in this area is often limited by the lack of large, representative, and highquality application datasets that can support empirical studies and the development of new approaches benefiting XR software processes. In this paper, we introduce XRZoo, a comprehensive and curated dataset of XR applications designed to bridge this gap. XRZoo contains 12,528 free XR applications, spanning nine app stores, across all XR techniques (i.e., AR, MR, and VR) and use cases, with detailed metadata on key aspects such as application descriptions, application categories, release dates, user review numbers, and hardware specifications, etc. By making XRZoo publicly available, we aim to foster reproducible XR software engineering and security research, enable cross-disciplinary investigations, and also support the development of advanced XR systems by providing examples to developers. Our dataset serves as a valuable resource for researchers and practitioners interested in improving the scalability, usability, and effectiveness of XR applications. XRZoo will be released and actively maintained.

翻译：扩展现实（XR，涵盖AR、MR和VR）与空间计算技术的快速发展构成了新兴元宇宙的基础层，推动了医疗、教育、制造和娱乐等领域的创新应用。然而，该领域的研究常因缺乏能够支持实证研究、并促进XR软件流程新方法开发的大规模、代表性高质量应用数据集而受到限制。本文介绍了XRZoo——一个经过系统整理的综合XR应用数据集，旨在填补这一空白。XRZoo收录了来自九个应用商店的12,528个免费XR应用，涵盖所有XR技术（即AR、MR和VR）及使用场景，并提供包含应用描述、应用类别、发布日期、用户评价数量、硬件规格等关键维度的详细元数据。通过公开XRZoo，我们希望促进可复现的XR软件工程与安全研究，支持跨学科探索，同时通过为开发者提供范例来助力先进XR系统的开发。本数据集为致力于提升XR应用可扩展性、可用性与有效性的研究人员和实践者提供了宝贵资源。XRZoo将持续公开发布并积极维护。