Japan’s Smartphone Act fully took effect in late 2025, enabling iPhone users to install apps from outside the App Store and use third‑party payment systems, while Apple still retains certain safety, policy, and gatekeeping restrictions.

Pricing remains structured: a 21% base commission through the App Store, 10% for specific programs, plus 5% if using Apple’s payment system and an additional 5% Core Technology Commission when distributing via alternative marketplaces.

Layered parental controls restrict minors from using alternative payments and purchases, requiring parental verification for non‑Kids purchases and limiting under‑18 users on alternative payment flows.

Apple reports stringent app review and anti‑fraud measures, citing over 2 million submissions rejected in 2025, more than 28,000 illegitimate apps blocked, and over $2.2 billion in fraudulent transactions blocked globally.

Developers can request access to non‑standard features, with Apple forming an interoperability team that may improve cross‑device compatibility with third‑party wearables and accessories.

By March 31, 2026, over 500,000 developers had signed Japan‑specific terms; many can use cheaper alternative registers with comparable or lower fees, while free or physical‑goods‑only apps stay on the App Store without commissions.

Apps listing alternative payments must disclose that such methods exist or external links are used, since Apple cannot verify safety, refunds, or subscription management for non‑Apple processes.

iOS updates in Japan allow non‑WebKit browsers and direct website distribution; iOS 26.3 adds an iPhone‑to‑Android data transfer tool, with some data types still unsupported.

As of March 31, 2026, six alternative app stores were approved to operate alongside the App Store in Japan, including AltStore, Aptoide, Onside, Epic Games, DMM GAMES STORE, and App Arena, with two based in Japan.

Under the law, Apple retains gatekeeper authority, enabling approval of alternative marketplaces and setting restrictions to address cybersecurity, privacy, child protection, device integrity, and IP protection.

In sum, Japan’s legal changes are reshaping iPhone software distribution and payments by introducing real multi‑store competition while preserving gatekeeping and enforcement priorities.