Apple has announced a historic change for iOS in Japan, following the enactment of the Mobile Software Competition Act (MSCA) on December 18, 2025. Japan becomes the first country outside the European Union where iPhone users can officially install apps from sources other than the App Store.
This update comes with iOS 26.2, enabling developers to create and manage alternative app marketplaces. Users can now directly download popular apps like Fortnite or AltStore PAL. Apple also allows Alternative Payments, so developers are not required to pay high commissions for transactions processed outside the App Store.
To maintain security, Apple implements Notarization to check apps from external stores for malware and basic safety issues via automated systems and human review. However, Apple warns that this process is not as strict as the regular App Store review, and the company cannot take responsibility for fraud or refunds if users transact through these alternative systems.
Another major change is the ability to choose default apps. Japanese users will see a Choice Screen during setup, allowing them to select browsers and search engines freely. Apple also allows the use of browser engines other than WebKit and opens the Side Button API, enabling developers to assign the button to AI assistants other than Siri.
For child safety, Apple introduces a Parental Gate for users under 18. Apps for children are restricted from linking to external payment sites, reducing risks of scams. Apple notes that Japan’s MSCA provides stronger child protections than the EU’s DMA.
Apple is also adjusting its Core Technology Commission (CTC) fees, collecting 5% on digital goods and services from apps distributed through alternative stores. This marks a permanent shift from Apple’s traditional walled garden model toward a more open and competitive ecosystem in Japan.
This move represents a significant step in giving users more control over their iOS devices while balancing security and developer opportunities.
Source: Engadget
