隨著智慧型手機普及，大量行動應用程式(Apps)近年如雨後春筍般的出現，然而在大量且功能間相似的App中，如何脫穎而出實為值得探討之議題。 本研究依據先進者優勢作為理論基礎，並延伸探討產品特性及行銷策略對先進者優勢維持之影響，透過檔案分析法針對目前市面上數個成功的App進行個案研究，並同時對功能相仿的App進行交叉個案分析，期望歸納出能領導各種類App成功的方法。 本研究蒐集自期刊論文、相關書籍、報章雜誌及網路文獻之資料，經個案分析之研究結果如下： 1. 市場的先佔及高轉換成本為App先進者主要優勢來源；而較低的成本、市場不穩定性及先進者可能失誤，則為App後進者主要優勢。 2. 較佳的產品功能與產品創新能力，或較能提供更多附加價值之App，對App先進者優勢的維持有正向之影響。 3. 不同種類的App在先進者優勢之維持上略有差異，簡要歸納如下 (1) 遊戲類：受先進者優勢、產品優勢及行銷策略影響甚鉅，快速先占市場，並擁有良好產品功能及完整行銷策略較易帶來成功。 (2) 工具類：透過較佳的產品功能、產品品質與產品創新來維持先進者優勢，才能保持長期競爭力。 (3) 娛樂類：先進者優勢與產品優勢同等重要，快速先占市場將有助於發展與競爭力維持。 (4) 社交類：深受網路外部性之影響，故快速先佔市場並持續滿足使用者需求，才能避免被後進者淘汰。 / As more people use smart phones, the number of mobile applications (Apps) is increasing rapidly. However, with so many similar Apps, how Apps can stand out from competing products is an important issue. This study adopts theories related to First-Mover Advantages, Product Advantages and Marketing strategies to develop a general framework for analyzing factors that affect the success of first movers. We chose several well-known apps and used document analysis to analyze the secondary data collected from the Internet, newspapers, magazines, books, etc. Our major findings are as following: 1. Market preemption and high user switching costs are the main source of advantages for first-movers. Lower development costs, risks and the chance to avoid failure are the main source of advantages for the follower to succeed. 2. Better product functions and innovative features have positive effects on keeping First-Mover Advantages. Meeting customer needs and providing more added values also help maintain the advantage. 3. Different factors exist for different types of apps. Product advantages and marketing strategies are keys for Games Apps; app functionality, product quality and innovative features are important for productivity tools; first-mover and product advantages are important for entertainment apps; while network externality is the most critical one for social networking apps.