OpenAI rolled out a fresh update to ChatGPT on iPhone and iPad, extending its Codex coding assistant to mobile users. The patch resolves a sign‑in glitch that blocked Apple‑ID accounts, which previously forced a Google login screen. Users who rely on Sign in with Apple can now reconnect Codex and start coding on the go.

The new build adds push notifications alerts for turn completion, letting developers know when a Mac‑based Codex task finishes or asks for input without staring at the screen. It also introduces the /fork command and promises a /side command soon, expanding the toolset for on‑device prompting. Interface tweaks make reconnections and conversation panes tighter, mirroring the desktop experience.

These refinements signal OpenAI’s push to make Codex the power‑user tier of ChatGPT across platforms. Earlier this month the Mac app gained non‑intrusive app control, and a dedicated subscription debuted alongside GPT‑5.5 and Images 2 upgrades. With the iOS improvements, developers can now rely on a more seamless, notified workflow from phone to desktop.

For teams that already use Codex on macOS, the mobile sync reduces context switching and keeps long‑running scripts visible across devices. The tighter UI and new commands also cut the friction of reviewing diffs, as users can open full files directly from the iOS chat. Overall, the update closes the functional gap between desktop and handheld coding assistants.