Google will begin imposing restrictions on sideloading apps on Android devices starting in September 2026 within the framework of a new developer verification program. Under the initiative, only apps from verified developers—those who have provided Google with identification, a copy of their app signing keys, and paid a 25 USD fee—will be able to be installed on smartphones.

Android Ecosystem President Samir Samat told Ars Technica that a separate feature called "Advanced Mode" will be available for users who want to install unapproved apps. However, unlike the usual "unknown sources" switch, this option will not be displayed to the user by default and is hidden in the developer settings.

To enable the installation of unverified apps, the user will need to manually activate developer mode, find the "Allow unverified packages" option in the system settings, confirm the action by entering a PIN or password, and reboot the device. After this, there is a mandatory 24-hour delay, after which the user will be able to choose whether to grant installation permission temporarily (for seven days) or permanently.

According to Samat, the daily delay is introduced to counter social engineering schemes in which attackers force the victim to immediately install the application under the pretext of an urgent threat. During this time, he noted, the user has time to verify the authenticity of such statements.

Privacy experts interviewed by the publication expressed concern that the verified developer database could pose risks to independent app developers in the event of subpoenas. Questions also remain about how the verification program will apply to developers from countries under international sanctions.