Google Antigravity for Googlebook: Build Your Own Android Apps With AI Agents

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Pixel art of two people at a desk using Google Antigravity on a Googlebook, with the title Antigravity on Googlebook
Google Antigravity is the AI agent app that comes pre-installed on every Googlebook. You tell it what you want in plain English, and its agents plan the work, write the code and build a real Android app you can install on the same laptop.
It is the same Antigravity that runs on Mac, Windows and Linux, but on Googlebook it lives on Google Play and works through the built-in Linux Terminal. Google lists it as a Beta, and it is one of the clearest reasons to pick a Googlebook over a regular Chromebook.
Below: what it does, how to set it up, your first app, plans and limits, and the Antigravity CLI. Questions? Reach out to us directly.
Price
Free app, AI plan for more
Made by
Google
Needs
Googlebook OS and Terminal
Best for
Building your own apps

What Antigravity does on a Googlebook

Antigravity is Google’s agent-first platform for building software. Instead of one chatbot answering one question, you hand a task to an agent, and it can split the work between subagents that run at the same time. You watch progress, read its plan and approve changes.

On Googlebook, Google’s help page says Antigravity can create personal apps for your laptop, run system commands, read and write files, search the web, connect to other tools with skills and MCP servers, and create artifacts such as implementation plans.

The Play Store listing sums it up as creating and deploying apps right on your Googlebook. That is the key difference from the desktop versions: the app you build can run on the same machine a minute later, as a normal Android window.

Google Antigravity on a Googlebook building a Touch Chords piano trainer Android app next to the finished app
Antigravity builds an Android app, then runs it as a window on the Googlebook. Image: Google
Dynamic subagentsBig jobs are split into parallel parts, such as frontend, backend and testing, each handled by its own agent.
ProjectsGroup conversations into projects that can span several folders, with their own settings and permissions.
Scheduled tasksSet a schedule and agents run routine checks in the background on their own.
Voice promptsTap the mic and speak. Gemini audio models turn speech into a clean written prompt.
Antigravity window on Googlebook showing five subagents running in parallel
Five subagents working on one project at the same time. Image: Google

Pick your model

A menu under the prompt box lets you choose the model for each conversation. Google’s Play Store screenshot shows several Gemini Flash and Pro models, plus Claude Sonnet, Claude Opus and GPT-OSS. Antigravity’s plans page says third-party models are a Google AI Ultra perk, so what you see depends on your plan.

Gemini 4 Argon is available in Antigravity for Google AI Pro and Ultra subscribers. Our Gemini 4 Argon guide covers what it is good at.

Antigravity model picker listing Gemini 3.8 Flash, Gemini 3.1 Pro, Claude and GPT-OSS models
The model picker in the Antigravity app. Image: Google

How to set up Antigravity on Googlebook

Antigravity is already installed. The first launch walks you through a short checklist:

1
Open Antigravity from the launcher and select Get Started.
2
Choose notifications. Allow them if you want to know when an agent finishes or needs approval.
3
Set up the Terminal. If you have not used it yet, Antigravity installs the Linux VM for you. This takes a few minutes.
4
Create an app folder. Pick a dedicated folder and allow Antigravity to use it. Keep personal files out of it.
5
Sign in with your Google Account to start the Antigravity service.
6
Finish the extras. Review the security notice, choose a theme and select the Android plugin so you can build apps for your Googlebook.

Removed it by accident? Open Google Play, search for Google Antigravity and select Install, or use this Play Store link.

Work or school account? Your IT admin may block Antigravity. It is also not available in every country yet.

Build your first app

Create a project, then type what you want. Google’s own example is a good first test: Create a simple Android calculator app for this device.

1
Send your prompt. Type it, or select the mic and speak it.
2
Wait for the build. The agent plans, writes the code and packages the app.
3
Refine it. Send follow-ups such as “make the buttons bigger” or “add a dark theme.”
4
Install the APK. Antigravity opens the folder with your app. Double-click the APK and follow the prompts.
5
Open it. Your app runs like any other Android app. Find all of them later under Generated Apps in the Antigravity sidebar.

Good to know: Google sends apps made with Antigravity to Google Play Protect, which scans them before install.

Antigravity side panel with an implementation plan on the left and a code file open on the right
Plans, walkthroughs and code changes sit side by side so you can review the work. Image: Google

Plans and limits

Antigravity measures usage by how much work the agent does, so simple tasks use less quota than big ones. Here is how the plans compare:

PlanQuotaExtras
No paid planSmaller quota, refreshed weeklyGemini Flash models, all core features
Google AI ProHigher quota, refreshed every 5 hoursGemini 4 Argon, buy extra AI credits
Google AI UltraHighest quota, refreshed every 5 hoursArgon, third-party models, extra credits

Heads up: Google’s Googlebook help page lists a Google AI plan as a requirement, while Antigravity’s plans page describes a free tier. If the app asks you to subscribe, that is why. Free trials of Google AI Pro do not include Argon, as we covered in our trial limits story.

Antigravity CLI on Googlebook

Antigravity also has a terminal version called agy. It runs the same agents and uses the same account, but it lives inside the Linux Terminal instead of its own window. It is the lighter option if you already work in a terminal.

To install it, open the Terminal app and paste the official install command:

curl -fsSL https://antigravity.google/cli/install.sh | bash

Then move into a project folder and start it:

mkdir agy-demo && cd agy-demo
agy

On first launch it asks for a color scheme, a display mode and whether you trust the folder. Useful commands: /agents to switch between subagents, /usage to check your quota, Ctrl + R to review plans and changes, and /exit to quit.

Antigravity appAntigravity CLI
InstallPre-installed, or Google PlayOne command in the Terminal
Looks likeA full app windowText inside the Terminal
Builds Android appsYes, with the Android pluginYes, from your project folder
Best forMost peoplePeople who already use a terminal

Tips for using it safely

Read the plan first: Antigravity shows its plan and changes before it acts. Take a few seconds to check them, especially for commands that delete or move files.

Share only what it needs: the Linux VM only sees folders you allow. Manage them in the Terminal under More, Settings, Shared folders. Google’s Terminal help page has the details.

Reset when things get messy: you can reset the Linux VM from the Terminal’s Recovery settings and keep your files on the Googlebook itself.

Check your chip: apps you build run best when they match your processor. Our Intel vs Snapdragon Googlebook explainer explains why.

Frequently asked questions

Is Google Antigravity free on Googlebook?
The app is free to install and comes pre-installed on Googlebooks. Google’s Googlebook help page lists a Google AI plan as a requirement, while Antigravity’s own plans page also describes a free tier with a smaller weekly quota. Google AI Pro and Ultra give you higher limits and access to Gemini 4 Argon.
Do I need to know how to code to use Antigravity?
No. You describe what you want in plain language, such as a simple calculator or a study timer, and the agent writes, builds and packages the app. Knowing some code helps when you want to check or fine-tune what it made.
Why does Antigravity open the Terminal app?
Antigravity runs its commands inside the Googlebook Linux Terminal, which is an isolated Debian virtual machine. Google says to keep the Terminal app open while you use Antigravity.
Can I install the apps Antigravity builds?
Yes. Antigravity builds an APK and opens its folder. Double-click the APK to install it. Google sends these apps to Google Play Protect for a scan, and you can open them later from Generated Apps in the Antigravity sidebar.
What is the difference between the Antigravity app and the Antigravity CLI?
The app is a full window with projects, a model picker, artifacts and a side panel. The CLI, called agy, runs the same agents inside a terminal. Both use the same Google account and plan limits.
Is Antigravity safe to use on a Googlebook?
Antigravity is in Beta and AI can make mistakes. Commands run inside the Linux VM, folders are only shared after you allow it, and you can reset the VM in one click. Review plans and changes before you approve them.

Support and resources

New to Googlebook? Read what reviewers think in our HP Googlebook 14 review roundup, and see more apps in Googlebook Apps.

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Sophie is a Chicago-based editor for Chrome Geek covering Chromebooks, Gemini, and the Google ecosystem. When she is offline, you can usually find her watching Blackhawks hockey or grabbing iced coffee in the city.