Google Antigravity on Phone: What Works

Google Antigravity on a phone does not exist as a native app, and it is worth being blunt about that up front. Antigravity ships in two forms: the Antigravity 2.0 desktop IDE, which downloads only for macOS, Windows, and Linux, and the new Antigravity CLI (binary name agy), whose installer targets those same desktop systems. There is no iOS, iPadOS, or Android version of either, and no browser version of the IDE. If your goal is to run an AI coding agent from a phone, the honest answer is a native app talking to a persistent cloud Linux box, which is what we build at Cosyra.

This guide separates the two questions people actually mean when they search "antigravity on phone," because conflating them is where most write-ups go wrong. One is "can I install the Antigravity IDE on my iPad or phone?" The other is "can I run the Antigravity CLI from a mobile terminal?" We cover what each one is, the Gemini CLI to Antigravity CLI transition that lands on June 18, 2026, the Termux gap on Android, and the alternative that runs from a phone today. For the wider map see our AI coding agents on mobile pillar and the mobile coding terminal pillar, and for the same Google-tool-without-a-mobile-app pattern see Firebase Studio on phone or its iPad sibling Firebase Studio on iPad.

Can you run the Antigravity IDE on a phone or iPad?

No. The Antigravity IDE is Google's agent-first desktop editor, launched in November 2025 as its answer to the AI-native editor wave. It is a standalone application for macOS, Windows, and Linux, and the official download page lists only those three platforms. The latest build at the time of writing is dated May 25, 2026. There is no iPad app, no iOS or Android app, and no hosted browser version you can open in mobile Safari. So unlike a browser IDE that at least loads on a tablet before falling apart, the Antigravity IDE has nothing to open on a phone at all.

That makes the IDE question short. If the device in your hand is a phone or an iPad, the Antigravity IDE is not an option you can install, full stop. The more interesting question is the second one, because the Antigravity CLI is a terminal program, and terminals are exactly the thing people expect to run on a phone.

What about the Antigravity CLI (agy)?

The Antigravity CLI is Google's Go-built successor to the Gemini CLI, announced in May 2026 and available to everyone. It is a terminal-native agent that carries over Agent Skills, Hooks, Subagents, and Extensions from the Gemini CLI (now packaged as Antigravity plugins). A terminal agent is closer to what works on a phone than a GUI IDE, so this is the path worth examining honestly.

We read the official install.sh on 2026-05-29 to see exactly what it will and will not install. The probe logic is unambiguous:

Two things follow from that. On a desktop or a cloud Linux box the installer drops agy into ~/.local/bin and you are done. On a phone running Termux the OS check passes (Android's kernel reports as Linux) and the arch check passes (modern phones are arm64), but the installer then selects the glibc build, and Termux runs on Android's bionic libc. The downloaded binary will not run there. The practical fix is a proot-distro glibc layer inside Termux, which works but adds a fragile emulation step the official installer never intended. The open Termux request for an antigravity-cli package is the community confirming there is no native Android story yet.

There is a second mobile blocker that matters more than libc. The Antigravity CLI authenticates with a system keyring and a browser-based Google sign-in, and it is tier-gated to Google AI Pro, Ultra, or Gemini Code Assist for individuals. There is no published API-key flow as of 2026-05-29. On a phone that is awkward: a pure mobile terminal has no graphical browser to complete the sign-in callback. We think account-gated browser sign-in is the wrong default for headless and mobile use, and that the lack of an API-key path is Antigravity CLI's biggest mobile blocker today. Claude Code and Codex CLI both take a key from an environment variable, which is why they run cleanly in a cloud terminal you reach from a phone. Google would likely defend the sign-in choice as better for consumer onboarding, and that is the trade-off we would push back on.

The Gemini CLI sunset on June 18, 2026

If you came here because your phone workflow used the Gemini CLI free tier, there is a date you need. Google's transition announcement states that on June 18, 2026, Gemini CLI and the Gemini Code Assist IDE extensions stop serving requests for free Gemini Code Assist for individuals, Google AI Pro, and Google AI Ultra subscribers. Organizations on a Gemini Code Assist Standard or Enterprise license keep their access unchanged. The replacement Google names is the Antigravity CLI.

We ship the Gemini CLI pre-installed in every Cosyra container today, and our Gemini CLI on phone guide walks through that setup. After June 18 the free individual tier behind that workflow stops serving, so the realistic migration for most readers is to a different agent rather than to a tool that has no mobile path. The agents we keep pre-installed and run from phones every day are Claude Code, Codex CLI, and OpenCode, and those do not depend on the Gemini transition at all.

How do you actually run an AI agent from your phone?

The shape that works on a phone is the one both Antigravity forms are missing: a native mobile app talking to a persistent cloud Linux environment. The phone's job is to be a good client to a real Linux box, not to host a desktop IDE or a glibc binary it was never built to run. We start a task on a train, hibernate the container when the stop comes, and pick the same session up on the couch an hour later without re-cloning or re-authing.

That is what we build. The Cosyra app on iOS and Android gives you a persistent Ubuntu 24.04 container with Claude Code, Codex CLI, Gemini CLI, and OpenCode already installed, 30 GB of storage, and hibernation that resumes exactly where you left off. We do not pre-install the Antigravity CLI, and we are not going to claim it "just works" in our container, because we have not finished a hands-on test of the browser sign-in inside a Cosyra session. What we will tell you is that the four agents above are installed, tested, and the honest way to do agentic coding from a phone right now.

Step 1: Install Cosyra

Install Cosyra from the App Store or Google Play. Sign in with Apple, Google, or email, and the app provisions a fresh Ubuntu container on first launch. There is no desktop step and no separate server to rent.

Step 2: Add your model API key

Cosyra is bring-your-own-key, so you pay your model provider directly. In the terminal:

Step 3: Run an agent

Clone a repo and start a session:

How do the realistic phone paths compare?

Lined up by what matters on a phone — whether there is anything to install at all, whether the install is supported or a hack, and how you authenticate — the options sort out clearly. The table covers the realistic paths as of 2026-05-29.

Where the Antigravity tools win

A fair guide names what the other tools do better, so here it is with no hedging. If these describe your situation, use Antigravity and not Cosyra:

• You are on a desktop. The Antigravity IDE is a polished, agent-first editor, and on a Mac, Windows, or Linux machine it is a genuinely strong workspace for building with agents in a GUI. We do not offer a desktop IDE.
• Price on the IDE. The Antigravity IDE is free in public preview for individuals, against our $29.99/month after the trial. On cost alone the IDE wins on a desktop.
• It runs offline and local. Both Antigravity forms run on your own hardware, so they keep working with no internet. A cloud container like ours needs a connection, which is a real trade-off we name honestly.
• Go-built CLI speed and Google integration. The Antigravity CLI is snappy, and if you live inside Google AI Pro or Ultra, its account-based auth is one less key to manage on a machine that has a browser.

Who should pick which?

Here is the decision framework we would give a friend, with the device question front and center.

• Pick the Antigravity IDE if you work on a desktop, you want a free agent-first editor with a graphical workspace, and you are happy inside Google's account-based auth. The phone is simply not its arena.
• Pick the Antigravity CLI if you want Google's terminal agent on a Mac, a Linux workstation, or a cloud box you control, and you can complete a browser sign-in on that machine. On a desktop or your own server it is a fine tool.
• Pick Cosyra if the device in your hand is a phone or a tablet, you want a real terminal and AI coding CLIs you drive yourself, and you want a persistent box that follows you across devices. This is the case neither Antigravity form covers.
• Try Termux first if you specifically want a local, offline terminal on Android, you are comfortable with proot-distro, and a cloud container is a non-starter for you. See our Cosyra vs Termux comparison for where that line falls.

Frequently asked questions

For the agent-by-agent picture across phone and tablet, our AI coding agents on mobile guide maps every option, and the mobile coding terminal pillar covers the terminal-on-a-device decision end to end. If you want the Anthropic agent specifically, see Claude Code on your phone.