Apple's iOS 27 overhauls the Messages app with Apple Intelligence driving contextual suggestions that surface one-tap actions — attaching photos when requested, adding events to Calendar, or creating reminders from grocery asks. A systemwide Write with Siri button sits above the keyboard to compose, proofread, or critique messages, while Smart Replies now mimic your personal writing style. Siri can also search messages for links, addresses, and media, then act on that data by drafting replies or scheduling events.

Quality-of-life fixes address longtime annoyances: a new setting removes the audio button entirely to stop accidental voice recordings, failed texts now auto-retry instead of requiring a manual tap, and media sending resumes automatically when connectivity returns. Cross-device syncing across iPhone, iPad, Mac, Apple Watch, and Vision Pro is faster and more reliable, with recent camera photos appearing in Messages almost instantly. Tapback notifications consolidate in group threads, and search now indexes offloaded media with thumbnails instead of placeholders.

Genmoji gets a complete redesign — start from an emoji from text, an existing emoji, a photo, or a person, then iterate with a "Describe a change" interface that tweaks colors and objects without regenerating from scratch. Style options now include sketch and drawing modes beyond the default 3D cartoon look. RCS conversations with Android users gain inline replies via long-press and functional reaction emoji on images and videos, fixing an iOS 26 regression. A Markup-based drawing tool and faster large-thread scrolling round out the update.

The sheer breadth of changes signals Apple treating Messages as a platform rather than a feature — AI integration, cross-device continuity, and interoperability fixes arrive together, suggesting the app's role as a default communication hub is only deepening.