Alternative app stores (also called alternative app marketplaces) are third-party services that distribute mobile applications outside a platform's default app store. They typically provide an application catalog, discovery, installation and update mechanisms, and policies for developers and users. They are distinct from "sideloading", which generally refers to installing apps directly without using a marketplace interface.[1][2]
The meaning and availability of alternative app stores vary by platform. Android has long supported multiple distribution routes, including third-party stores and direct installation from non-default sources with user permissions.[3] On iOS and iPadOS, alternative distribution has historically been limited; in the European Union, Apple introduced new distribution options in response to the EUDigital Markets Act (DMA), including alternative app marketplaces and web distribution for eligible apps and developers under specific terms.[2][4][5]
History
Alternative marketplaces emerged alongside the growth of mobile platforms, particularly where installation from multiple sources was technically possible. Android's ecosystem created room for alternative stores and other distribution methods, which has been associated with discussions about user choice, fees, and security in policy and industry coverage.[3]
In the EU, regulation has become a central driver of the contemporary "alternative marketplace" discussion on iOS. The DMA introduced obligations for designated gatekeepers intended to increase contestability and user choice in digital markets, and the European Commission has taken enforcement steps related to Apple's App Store practices under the DMA framework.[4][5][6]
On Android, alternative distribution may include third-party app stores and direct installation of apps obtained outside the default store. Installation from a given source typically requires explicit user consent or device permissions, and distribution can be managed through different channels depending on device settings and policy.[3]
Apple's EU distribution documentation describes options for developers including distribution via alternative app marketplaces and, for eligible apps and developers, web distribution for EU users under specified business terms and requirements.[2]
Public debate and reporting around DMA implementation has also focused on installation friction and whether conditions meaningfully enable competition for alternative marketplaces.[6][7]
Regulatory context (Digital Markets Act)
The Digital Markets Act is an EU regulation intended to address competition issues in digital markets by imposing obligations on designated gatekeepers, including rules related to user choice and access for business users.[5]
In April 2025, the European Commission announced it had found Apple in breach of certain DMA obligations and imposed a fine, while Apple publicly disputed aspects and indicated it would appeal, as described in European Commission announcements and news reporting.[4][8][9] The commission has published preliminary findings regarding Apple's rules for alternative app distribution under the DMA framework.[6]
Outside the EU, regulators such as the UK's Competition and Markets Authority (CMA) have examined competition in mobile ecosystems, providing additional context for policy debate around distribution and platform power.[10]
Business models and fees
Alternative app stores can use various monetization approaches, including commissions on sales, subscription bundles, and other fee structures.[11][12]
On iOS in the EU, Apple's documentation describes a Core Technology Fee (CTF) under certain alternative business terms, structured around "first annual installs" above a threshold and accompanied by other requirements and conditions.[13]
Security, privacy, and trust considerations
Apple has argued that broader distribution mechanisms such as sideloading can increase security and privacy risks, framing App Store review and platform controls as part of a "trusted ecosystem." [14] Independent security research has also examined malware risks associated with third-party marketplaces, particularly in Android-era alternative markets, though risk depends on specific market practices and time period.[15]
Policy documents and reporting around DMA implementation have highlighted debate about trade-offs among competition, user experience, and safety, including scrutiny of whether alternative marketplace conditions deter effective competition.[6][7]
Reception
Supporters of alternative app stores have argued they can increase competition and provide more choice for developers and users, while critics raise concerns about security, complexity, and whether platform rules and fees make competing marketplaces viable.[7][14]
EU enforcement documents and reporting have described ongoing disputes about the practical effectiveness of Apple's DMA compliance and conditions for alternative distribution.[6][7][8]
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