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The App Economy
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24 February 2026

Available open access digitally under CC-BY-NC-ND licence.
Mobile apps have transformed how we live, work and connect – but at what cost?
This book examines the immense power Apple and Google wield over society, arising from their control of app stores as well as mobile operating systems and browsers. With the EU’s new Digital Services Act defining their influence as a potential 'systemic risk', Konrad Kollnig unpacks the implications for competition, privacy, and regulation.
Offering a clear roadmap for scholars as well as policy makers, this book not only reveals the hidden risks of app ecosystems but also outlines practical solutions for ensuring fairer digital markets.
1 Introduction: Welcome the Rulers of the App Economy
Part I: Foundations
2 An Introduction to the App Economy for Non-Techies
3 A Brief History of the App Economy: From Landline to AI
4 The Legal Framework of App Stores
5 App Research with Technical and Legal Methods
Part II: Risks
6 App Monetisation and Moderation
7 (The Lack of) Data Protection, Privacy and the Rule of Law
8 Health, Autonomy and Addiction
9 Smartphones on Wheels? Sustainability of and beyond the App Economy
Part III: Conclusions
10 How Apple and Google exert their Dominance over Society
11 How to respond to Apple and Google’s Dominance
12 Concluding Thoughts: Building App Infrastructure to Withstand Geopolitics