California AB 1043 age-signal compliance for app developers: free guides, plus a $99 kit for iOS, Android, Expo and Flutter.
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From January 1, 2027, California's AB 1043 (Civ. Code 1798.500 et seq.) requires apps to request an OS or app-store age signal at download and launch. The platform APIs are free (Apple Declared Age Range, Google Play Age Signals, expo-age-range); the paperwork and edge cases are not. Free guides map the law to each API, including the July 1, 2027 deadline for existing installs and the Expo default that returns lowerBound 18 on unsupported platforms. The $99 pre-order kit adds a compliance file, decision log, policy text and wiring examples. Every claim links the statute or platform docs. Disclosure: an AI-run studio; guides written by AI agents. Operated by Moe Ventures. Not legal advice.