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Google Antigravity VS Keylight.dev

Compare Google Antigravity VS Keylight.dev and see what are their differences

Google Antigravity

Google Antigravity - Build the new way

Rating
0 reviews
Alternatives Is it good?
Keylight.dev

The simplest way to license your app.

Rating
5.0 · 1 review
Pricing
Open source Freemium $19 / Monthly (Up to 2000 licenses active.)
Alternatives Is it good?
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Which is more popular?

Based on our record, Google Antigravity should be more popular than Keylight.dev. It has been mentioned 37 times since March 2021.

social mentions
37 vs 4
Developer Tools popularity
98% vs 2%
alternatives listed
240+ vs 1

Base details

Website, pricing, platforms and company facts side by side.

Google Antigravity
Keylight.dev
Website antigravity.google keylight.dev
Pricing —
Open source Freemium $19 / Monthly (Up to 2000 licenses active.) Official pricing
Platforms —
Web
Company — Startup from Belgium · 1 - 9 employees · 2026
Listed in
Developer Tools AI Coding Code Autocomplete +1
Developer Tools Software Development License Management Productivity Tech Web App Tool +4

About Google Antigravity and Keylight.dev

In their own words, as submitted to SaaSHub.

Google Antigravity
Keylight.dev

No description of Google Antigravity yet.

Keylight sits between your payment provider and your app. Licenses, activations, customers, and usage all live here. Switch providers, or run several, without shipping a new build.

Read more about Keylight.dev

Features and specs

What each product offers, as listed by its team.

Google Antigravity 4 features
Keylight.dev 16 features
  • Innovative Technology
    Google Antigravity introduces groundbreaking technology that potentially revolutionizes the way we understand physics and gravity.
  • Increased Mobility
    If successful, antigravity technology could allow for unprecedented levels of mobility, enabling new forms of transportation and logistics.
  • Environmental Benefits
    By potentially reducing the need for traditional fossil fuel-based transportation, antigravity technology could have significant positive impacts on the environment.
  • Economic Opportunities
    This technology could create new industries and job opportunities, fostering economic growth and development.

Possible disadvantages

  • High Cost
    The development and implementation of antigravity technology are likely to require significant investment, making it expensive and potentially inaccessible to many.
  • Technological Challenges
    Antigravity involves complex scientific principles that may present formidable technological challenges and limit its feasibility.
  • Ethical Concerns
    The introduction of antigravity technology may raise ethical questions, such as its impact on society and potential misuse in military applications.
  • Regulatory Hurdles
    Bringing antigravity technology to market would require navigating numerous regulatory environments, which could delay its deployment.
  • License Management
    Create, validate, revoke, and manage software licenses from one dashboard.
  • Device Activations
    Limit how many devices can use a license and manage individual activations.
  • Offline Access
    Keep apps working securely without a constant internet connection using signed offline leases.
  • License States
    Handle trial, free, paid, expired, limited, and grace-period access through one consistent state.
  • Payment Provider Integrations
    Connect Stripe, Paddle, Lemon Squeezy, Polar, Gumroad, and other payment platforms.
  • Provider Independence
    Change payment providers or use multiple providers without rebuilding your app’s licensing system.
  • Swift SDK Integration
    Add licensing to macOS and iOS apps using a native Swift package.
  • Secure License Validation
    Protect license data with cryptographic signatures and tamper-resistant validation.
  • Trials and Free Tiers
    Configure trials, free plans, fallbacks, and upgrade paths without building custom logic.
  • Customer Dashboard
    View licenses, customers, devices, activations, plans, and access status in one place.
  • License Analytics
    Track activations, active licenses, usage, and customer activity.
  • Key Rotation
    Rotate SDK signing keys without breaking older application versions.
  • Webhook Synchronization
    Convert payment, renewal, refund, cancellation, and subscription events into license updates.
  • Device-Bound Storage
    Store license data securely on the customer’s device without unnecessary Keychain prompts.
  • REST API
    Connect custom backends, checkout systems, and internal tools to Keylight.
  • Agentic Orchestration
    CLI usable by AI Agents to run the whole setup and more.

Analysis

An editorial look at what each product does well and who it suits.

Google Antigravity
Keylight.dev

Overall verdict

  • Google Antigravity is a promising agent-first development platform that reimagines the coding workflow around autonomous AI agents, making it a strong choice for developers who want to leverage Google's Gemini models in an IDE built for the agentic era.

Why this product is good

  • Built around an agent-centric approach, allowing AI agents to autonomously plan, execute, and validate coding tasks across the editor, terminal, and browser
  • Powered by Google's advanced Gemini models, offering strong reasoning and code generation capabilities
  • Provides a mission-control style interface where developers can orchestrate and monitor multiple agents working in parallel
  • Agents can produce verifiable artifacts like task lists, screenshots, and browser recordings to build trust in their output
  • Free to use during its public preview period, lowering the barrier to entry for experimentation

Recommended for

  • Developers who want to embrace agentic, AI-driven coding workflows
  • Teams already invested in Google's Gemini and AI ecosystem
  • Engineers looking to automate repetitive coding, testing, and browser-based tasks
  • Early adopters interested in exploring the future of AI-assisted software development
  • Individuals wanting to experiment with autonomous agents at no cost during the preview

Overall verdict

  • I don't have verified, up-to-date information about Keylight.dev specifically, so I can't confirm its quality, features, or reliability. It may be a newer or niche tool that isn't well-documented in my training data. I'd recommend checking recent user reviews, the official website's documentation, and community forums (like GitHub, Reddit, or Twitter) for firsthand feedback before making a decision.

Why this product is good

  • Unable to verify specific features, pricing, or performance claims for this product
  • No confirmed user reviews or independent testing data available
  • Cannot confirm company legitimacy, support quality, or security practices without direct verification

Recommended for

  • Users willing to conduct their own due diligence by visiting the official site directly
  • Developers who can test the product via a free trial or demo before committing
  • Anyone who checks third-party review sites, GitHub issues, or community discussions for real user experiences

Videos

Walkthroughs and reviews on video.

Google Antigravity 2 videos + Add
Keylight.dev 0 videos + Add

I Tried Google Antigravity So You Don't Have To!

More videos

  • - Is Google Antigravity Better Than Cursor 2.0?

No Keylight.dev videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Google Antigravity
Keylight.dev
98% 98%
Developer Tools
2% 2%
0% 0%
Tool
100% 100%
100% 100%
AI
0% 0%
89% 89%
Productivity
11% 11%

Questions & Answers

As answered by people managing Google Antigravity and Keylight.dev.

What makes your product unique?

Keylight.dev's answer:

Keylight keeps app licensing separate from payments. You can use Stripe, Paddle, Lemon Squeezy, Polar, Gumroad, or your own checkout without tying your app to one provider.

It handles license keys, device activations, trials, free tiers, offline access, grace periods, and signed license state through one SDK.

Why should a person choose your product over its competitors?

Keylight.dev's answer:

My goal is to make all apps work with Keylight. So all of your licenses, from any types of apps, is going through Keylight for analytics, customer portal, support, ...

Most licensing tools are bundled into a payment provider. Keylight is built as an independent licensing layer.

That means you can change payment providers, sell through multiple platforms, or change your pricing model without rebuilding licensing inside your app.

It also gives developers a ready-made SDK and dashboard instead of requiring them to build and maintain their own licensing backend.

How would you describe the primary audience of your product?

Keylight.dev's answer:

Keylight is primarily built for independent developers and software companies selling apps directly to customers.

Its main audience includes:

macOS and iOS developers Web app and SaaS developers Developers selling outside app stores Teams migrating from a payment provider’s built-in licensing Developers who need trials, device limits, offline access, and license analytics

What's the story behind your product?

Keylight.dev's answer:

Keylight started because I kept rebuilding the same licensing systems for different apps: license keys, trials, activations, offline access, device changes, and all the edge cases that come with them.

I also did not want licensing to be controlled by whichever payment provider an app happened to use.

So I built Keylight as a standalone layer between the app and the payment provider. Payment platforms send events to Keylight, and the app receives one consistent license state through the SDK.

Who are some of the biggest customers of your product?

Keylight.dev's answer:

That's confidential.

Which are the primary technologies used for building your product?

Keylight.dev's answer:

Swift and Swift Package Manager for the Apple SDK Rust SDK / JS SDK / C# SDK / C++ SDK TypeScript React Next.js Stripe Connect and payment-provider webhooks Cryptographic signatures for secure, offline-capable licenses REST APIs for application and provider integrations

User comments

Share your experience with using Google Antigravity and Keylight.dev. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

Google Antigravity no reviews yet
Keylight.dev 5.0 · 1 review

We have no reviews of Google Antigravity yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Google Antigravity 37 mentions
Keylight.dev 4 mentions
  • I Already Had Sentry. Then an iPhone from 2018 White-Screened My Karaoke App.
    I used Antigravity with Gemini and the Sentry MCP. Not to generate the PR. To sit next to the issue list and ask what was actually mine. - Source: dev.to / 28 days ago
  • Kimi Work
    This landing page looks like a cheap ripoff of google's antigravity: https://antigravity.google/. - Source: Hacker News / 2 months ago
  • Google Antigravity vs OpenAI Codex - Which AI coding agent is better?
    Google Antigravity and OpenAI Codex are the two most capable AI coding agents in wide use in 2026, and they answer the same question in opposite ways: where should an autonomous coding agent live and do its work. Antigravity rebuilds the... - Source: dev.to / 2 months ago

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  • How offline license activation actually works
    You don't want to hand-roll Ed25519 and lease parsing. Most licensing SDKs hide this behind a couple of calls. With Keylight, for example, the offline path collapses to: activate once, then a local checkOnLaunch() that verifies the lease... - Source: dev.to / 3 months ago
  • I compared the licensing tools for my indie Mac app — the honest breakdown
    Full disclosure: I now build Keylight, so weigh this accordingly — I'm telling you the seam it's designed for, not that it wins every row. - Source: dev.to / 3 months ago
  • How to add license keys to a SwiftUI macOS app (in under an hour)
    Full docs and the free tier are at keylight.dev. If you're on Tauri or Electron instead of native Swift, the same SDK pattern exists in JS/Rust. - Source: dev.to / 3 months ago

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Alternatives to Google Antigravity and Keylight.dev

When comparing Google Antigravity and Keylight.dev, you can also consider the following products.

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