# Turnstone vs Google Antigravity

Turnstone records 0 monthly visits with 0% month-over-month growth and Free with paid add-on pricing. Google Antigravity records 16,054,109 monthly visits with +8.1% growth and Freemium pricing.

| Metric | [Turnstone](https://openaitools.app/tool/crow) | [Google Antigravity](https://openaitools.app/tool/google-antigravity) |
| :--- | :--- | :--- |
| Website URL | https://myturnstone.ai | https://antigravity.google |
| Categories | AI Copilot, AI Agent, AI Developer Tools, AI Assistant | AI Agent, AI Developer Tools, AI Code Assistant, AI Copilot |
| Pricing Model | Free with paid add-on | Freemium |
| Monthly Visits | 0 | 16,054,109 |
| MoM Growth Rate | 0% | +8.1% |
| Primary Market | Global | India |
| Direct Visits | 0 | 4,378,684 |
| Review Score | 4.2 | 4.6 |
| Saved Count | 0 | 1 |
| Supported Platforms | Website | Website |

## Turnstone

Turnstone is a desktop app for macOS that turns the AI subscriptions you already own into a team of working agents. Instead of paying for yet another model, you sign in with your existing ChatGPT, Claude, Grok, or Cursor plan (or plug in an API key), and Turnstone gives those plans persistent agents that hold onto context and memory. Because it is model agnostic, you can start a conversation on one provider and continue it on another, and the agent keeps its role and everything it has learned.

The core idea is a coordinated team of agents led by a Chief of Staff. You brief that first agent on what you are working on, and it spins up specialists for each part of the job: outreach, launch writing, signup tracking, engineering, and more. Agents pass tasks to one another, each runs in its own browser tab, and scheduled jobs like a weekday morning brief run automatically and report back in your chat.

Turnstone is free forever on your Mac, and what it learns stays with you in a folder you can open. An optional Turnstone Cloud add-on keeps agents working while your Mac is closed so you can message them from your phone. The app is backed by Y Combinator and is positioned as a model-agnostic alternative for people moving away from single-provider bot platforms.

**Pricing & Plans:** Free forever on Mac, including persistent agents, your Chief of Staff, and app connectors — no card required. Turnstone Cloud, which keeps agents running while your Mac is closed, is $49/month after a free first month for the first 1,000 users. You supply the AI via your own ChatGPT, Claude, Grok, or Cursor subscription, API keys, or a local Ollama model.

- **Bring your own AI subscription:** Sign in with ChatGPT, Claude, Grok, or Cursor, or use your own API key, and run local models through Ollama. Switch models mid-conversation without losing context.
- **Agents that pass work along:** One Chief of Staff agent coordinates specialist agents — outreach, launch writer, signups, engineer — and hands work between them, returning results to your chat.
- **Remembers how you work:** Persistent agents remember how you like work done and how you write in each app, from Gmail to WhatsApp, and draft replies in your voice. Nothing sends until you approve.
- **Private browser per agent:** Each agent works in its own tab of the Turnstone Browser, opening sites, reading pages, and filling forms while you watch. Scheduled jobs run automatically and report back.
- **Local-first data on your Mac:** Agents, chats, and memory live in a folder on your Mac, and connected data is only used to build your own memory. No model is trained on it.

**Strengths:** Runs on AI subscriptions you already pay for, so no separate model costs; Model agnostic: switch providers mid-conversation without losing context; Local-first memory stored in a human-readable folder on your Mac; Free forever desktop tier with no card required

**Limitations:** Mac only — Windows and Linux are not supported; The Cloud tier that runs agents while your Mac is closed costs $49/month after the first free month; Requires you to already have an AI subscription, API key, or local model setup; Browser and app connectors may not suit teams wanting fully cloud-managed workflows

[Profile (Markdown)](https://openaitools.app/tool/crow.md)

## Google Antigravity

Google Antigravity is Google's entry into agentic software development, positioned as a platform rather than a single editor. Instead of asking an assistant to autocomplete a line, Antigravity is designed around agents that take on whole tasks: they read a codebase, produce artifacts such as plans and verification tests, and report back so a human can review the work. The product is distributed across several surfaces so it can fit different workflows — the Antigravity App as a command center for running multiple local agents in parallel, the Antigravity IDE as the fully featured editor with agent manager and artifacts, the Antigravity CLI for keyboard-driven terminal work, extensions for existing editors, and the Antigravity SDK for building custom agents on the same agent harness.

The platform is explicitly aimed at a broad audience: professional developers working in large enterprise codebases, hobbyists vibe-coding on the side, and everyone in between. Google's marketing highlights use cases like frontend and full-stack development, legacy and codebase migrations, technical debt and backlog burndown, automated testing and QA verification, incident triage and root cause analysis, data pipelines and SQL work, developer onboarding and architecture, and enterprise architecture and strategy.

Antigravity connects to Google's Gemini model line, with the site documenting model releases such as Gemini 4 Carbon, Gemini 4 Argon, and Gemini 3.8 Flash, plus agent features like voice mode, custom agents, and a plugin marketplace. It is available for macOS, Windows, Linux, and Googlebook, and Google states it is available at no charge for developers.

**Pricing & Plans:** Free to download and use for individual developers according to Google's own site; organization and enterprise plans are offered separately (pricing on request). Model and quota details can change, so check the official pricing page before committing a team.

- **Multiple agent surfaces:** A desktop app, a full agentic IDE, a terminal-first CLI, editor extensions, and an SDK let you run Antigravity agents wherever you already work.
- **Parallel local agents:** Group conversations into Projects and run several local agents at the same time, across multiple workspaces, rather than one at a time.
- **Artifacts and verification:** Agents produce designed artifacts such as plans and comprehensive verification tests so output can be reviewed, not just accepted.
- **Built on Gemini models:** Runs on Google's Gemini model line, including releases such as Gemini 4 Carbon, Gemini 4 Argon, and Gemini 3.8 Flash.
- **Agent SDK for custom agents:** Use short Python scripts against the Antigravity harness to prototype custom agents, automate engineering tasks, and run evaluations.

**Strengths:** Free for individual developers and available on macOS, Windows, Linux, and Googlebook; Covers many surfaces — app, IDE, CLI, extensions, SDK — so different workflows are supported; Backed by Google and its Gemini models with a steady release cadence; Verification-oriented: artifacts and tests make agent output easier to review

**Limitations:** Tied to Google's Gemini model line rather than being model-agnostic; Enterprise pricing is not published, so costs require contacting sales; Rapid model and feature changes mean quotas and capabilities can shift

[Profile (Markdown)](https://openaitools.app/tool/google-antigravity.md)

## Frequently Asked Questions

### How do Turnstone and Google Antigravity compare in monthly traffic?

Turnstone has 0 monthly visits, while Google Antigravity has 16,054,109. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Turnstone has a month-over-month growth rate of 0%; Google Antigravity has +8.1%.

### How does pricing compare?

Turnstone: Free with paid add-on. Free forever on Mac, including persistent agents, your Chief of Staff, and app connectors — no card required. Turnstone Cloud, which keeps agents running while your Mac is closed, is $49/month after a free first month for the first 1,000 users. You supply the AI via your own ChatGPT, Claude, Grok, or Cursor subscription, API keys, or a local Ollama model. Google Antigravity: Freemium. Free to download and use for individual developers according to Google's own site; organization and enterprise plans are offered separately (pricing on request). Model and quota details can change, so check the official pricing page before committing a team.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Claude](https://openaitools.app/tool/claude-2) | 1,253,439,413 | +23.8% | Freemium | Provides superior reasoning and artifact generation for coding tasks, but lacks a dedicated native desktop development command center. | [.md](https://openaitools.app/tool/claude-2.md) |
| 2 | [Cursor](https://openaitools.app/tool/cursor) | 23,297,751 | +8.4% | Freemium | Offers a more mature polished AI-native coding experience, but lacks Google's specific native multi-agent command center ecosystem. | [.md](https://openaitools.app/tool/cursor.md) |
| 3 | [Manus](https://openaitools.app/tool/manus) | 19,195,779 | -1.7% | Free Trial | A general-purpose AI agent that executes tasks, not just answers them | [.md](https://openaitools.app/tool/manus.md) |
| 4 | [Replit](https://openaitools.app/tool/replit) | 10,016,437 | -7.7% | Freemium, Paid | Enables rapid full-stack app building and deployment entirely in the cloud, but offers less granular local agentic control. | [.md](https://openaitools.app/tool/replit.md) |
| 5 | [Qoder](https://openaitools.app/tool/qoder) | 5,145,040 | +81.8% | Freemium, Free Trial, Free | Deeply reads entire codebases to execute complex multi-file tasks, though integrated as an IDE plugin rather than standalone suite. | [.md](https://openaitools.app/tool/qoder.md) |
| 6 | [Hermes-Agent](https://openaitools.app/tool/hermes-agent-1) | 3,638,741 | -5.4% | Freemium | A free, open-source personal AI agent that learns your projects and works across every messaging app. | [.md](https://openaitools.app/tool/hermes-agent-1.md) |
| 7 | [Kiro](https://openaitools.app/tool/kiro) | 3,330,476 | +4.6% | Freemium | Delivers robust spec-driven engineering and autonomous verification workflows, though configured differently than Google's developer platform. | [.md](https://openaitools.app/tool/kiro.md) |
| 8 | [Devin](https://openaitools.app/tool/devin) | 2,549,346 | +1% | Paid | Cognition's autonomous software engineer that ships real pull requests | [.md](https://openaitools.app/tool/devin.md) |
| 9 | [Command Code](https://openaitools.app/tool/command-code) | 2,358,177 | -12.1% | Freemium, Contact for Pricing | The coding agent that learns your coding taste | [.md](https://openaitools.app/tool/command-code.md) |
| 10 | [Chatbot App](https://openaitools.app/tool/chatbot-app) | 2,170,883 | -9.7% | Freemium | Chat with 30+ leading AI models in one clean, fast workspace | [.md](https://openaitools.app/tool/chatbot-app.md) |

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Source: https://openaitools.app/compare/crow-vs-google-antigravity

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