Google has extended end-to-end encryption to Gmail on Android and iOS, bringing a privacy feature that desktop users have had access to since April 2025 to mobile devices for the first time.
The update closes a notable gap in Gmail’s encryption rollout which has until now meant that users relying on smartphones and tablets to manage sensitive correspondence were without native E2EE support inside the app itself, requiring third-party tools instead.
The mechanism mirrors what desktop users will already recognise: only the sender and the intended recipient can read the content of an encrypted message, with no intermediate access available along the way.
Sending an encrypted email on mobile follows a straightforward process, with a lock icon visible during composition that surfaces an additional encryption toggle before the message is sent.
Delivery behaviour adapts depending on the recipient’s email provider, with Gmail-to-Gmail exchanges arriving like any other message in the inbox, while recipients on other platforms receive a secure link through which they can read and reply via a web browser without needing a Gmail account.
The broader significance for enterprise users is considerable, given that mobile is where much of the day-to-day email activity of large organisations actually takes place, and the previous absence of mobile E2EE left a practical gap in client-facing privacy assurances.
That said, access remains restricted to Google Workspace Enterprise Plus accounts that carry either the Assured Controls or Assured Controls Plus add-on, with IT administrators required to enable the feature for Android and iOS users through the client-side encryption settings before it becomes available.
Personal Gmail accounts are not included in the current rollout, meaning the feature targets enterprise deployments rather than the broader consumer base.
For organisations weighing Workspace against Microsoft 365, the update removes a long-standing line of criticism around Gmail’s mobile privacy capabilities, narrowing the feature gap between the two productivity suites.
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