Apple Advances Toward End-to-End Encrypted RCS Messaging
Evidence from recent iOS beta versions suggests end-to-end encryption for cross-platform RCS messages is nearing release, marking a major step in secure messaging between iPhone and Android users.
Apple has taken steps toward implementing end-to-end encryption (E2EE) for Rich Communication Services (RCS) messages, with code found in recent iOS beta versions and a release candidate that includes a beta version of the feature. This development follows the introduction of RCS Universal Profile 3.0 by the GSM Association (GSMA) in March 2025, which established a framework for E2EE in cross-platform messaging.
Background on RCS Integration
Apple integrated RCS support into iOS with the release of iOS 18 in 2024, utilizing RCS Universal Profile 2.4. This initial implementation provided basic messaging features including read receipts, higher quality photos, and typing indicators. End-to-end encryption was not included, as it was not part of the RCS standard at that time.
In March 2025, Apple confirmed plans to add support for end-to-end encrypted RCS messages across iOS, iPadOS, macOS, and watchOS following the release of RCS Universal Profile 3.0. Google also committed to implementing E2EE for RCS communications.
Evidence of E2EE in Beta Versions
Code analysis of the iOS 26.3 beta, reported by MacRumors, revealed carrier bundle settings indicating that certain cellular carriers will have the option to enable end-to-end encrypted RCS messaging. This code was found in carrier bundle files for four major French carriers: Bouygues, Orange, SFR, and Free.
Apple has released the release candidate of iOS 26.5, which includes a beta version of end-to-end encrypted RCS messaging between iPhone and Google Messages on Android. The feature can be toggled in Settings under Messages > RCS Messaging > "End-to-End Encryption (Beta)", which is enabled by default. Android users must have the latest version of Google Messages to participate.
Available Messaging Indicators
When E2EE is enabled, the iPhone Messages app will display the text "Text Message ยท RCS | [lock icon] Encrypted" at the center of conversations with Android users. Google Messages will show a lock icon for encrypted conversations.
Expected Additional Features
Beyond E2EE, an upgrade to RCS Universal Profile 3.0 is anticipated to introduce several enhancements previously exclusive to iMessage:
- In-line replies
- Full Tapback support for emoji reactions (replacing current text-based fallbacks)
- Message editing capabilities
- Ability to unsend or recall messages
Implementation Timeline
The specific release date for these features remains unconfirmed. Apple has stated that E2EE for RCS will arrive through "future software updates." Evidence from beta versions suggests the feature may be introduced in an upcoming iOS update, potentially with iOS 26.5 or a later release within the iOS 26 cycle, though some analysis indicates it could arrive as late as iOS 27.
Carrier implementation is required for activation, and Apple may collaborate with Google to ensure a consistent experience across iOS and Android platforms. The feature may initially be restricted to certain countries as carriers begin implementation.
iOS 26.5 is expected to launch within the next week.