LLM-Powered GUI Agents in Phone Automation: Surveying Progress and
  Prospects
Authors: name: Guangyi Liu, name: Pengxiang Zhao, name: Liang Liu, name: Yaxuan Guo, name: Han Xiao, name: Weifeng Lin, name: Yuxiang Chai, name: Yue Han, name: Shuai Ren, name: Hao Wang, name: Xiaoyu Liang, name: Wenhao Wang, name: Tianze Wu, name: Linghao Li, name: Hao Wang, name: Guanjing Xiong, name: Yong Liu, name: Hongsheng Li

With the rapid rise of large language models (LLMs), phone automation has
undergone transformative changes. This paper systematically reviews LLM-driven
phone GUI agents, highlighting their evolution from script-based automation to
intelligent, adaptive systems. We first contextualize key challenges, (i)
limited generality, (ii) high maintenance overhead, and (iii) weak intent
comprehension, and show how LLMs address these issues through advanced language
understanding, multimodal perception, and robust decision-making. We then
propose a taxonomy covering fundamental agent frameworks (single-agent,
multi-agent, plan-then-act), modeling approaches (prompt engineering,
training-based), and essential datasets and benchmarks. Furthermore, we detail
task-specific architectures, supervised fine-tuning, and reinforcement learning
strategies that bridge user intent and GUI operations. Finally, we discuss open
challenges such as dataset diversity, on-device deployment efficiency,
user-centric adaptation, and security concerns, offering forward-looking
insights into this rapidly evolving field. By providing a structured overview
and identifying pressing research gaps, this paper serves as a definitive
reference for researchers and practitioners seeking to harness LLMs in
designing scalable, user-friendly phone GUI agents.