Astryx vs Ito: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Astryx and Ito — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
A
Astryx
Meta
Meta's open-source React design system with 150+ accessible components, built for developers and AI assistants to build with the same tooling.
Key features
- 150+ Accessible Components: A cohesive React component library covering forms, navigation, data display, feedback, and more, all built for accessibility.
- Agent-Ready CLI: A scriptable CLI (`astryx component list`, docs, scaffolding, codemods) that Cursor, Claude Code, and Codex can drive directly.
- Swizzle for Full Ownership: Eject a component's full source into your project when you need to customize beyond props — no forking the library.
- Theme via CSS Variables: Themes are CSS custom-property overrides, so designers can rebrand Astryx without wrapping or forking component source.
- No Styling Lock-In: Styles are authored with StyleX internally but you override with Tailwind, CSS modules, or plain CSS — no library adoption required.
- Seven Ready-Made Themes: neutral, butter, chocolate, matcha, stone, gothic, and y2k themes ship out of the box and are fully customizable.
- Dark Mode + Brand Theming: Brand-level theming and dark mode work together across every component without extra wrapping.
- Live Docs, Storybook & Sandbox: Full docs at astryx.atmeta.com, a hosted Storybook, and an interactive Sandbox for humans and agents to explore.
Best for
- AI-Assisted UI Builds: Let an agent scaffold a React app that a designer and engineer both extend, all from the same component and CLI reference.
- Rapid Product Prototyping: Assemble accessible screens from ready-to-ship templates and swap themes to prototype multiple brand directions.
- Design System Adoption: Replace a hand-rolled component library with a maintained, accessibility-audited system without changing your styling approach.
- Rebrand Without Forking: Ship a distinct visual identity by overriding CSS custom properties instead of forking the component source.
- Multi-Framework Codebases: Bring Astryx into a project that already uses Tailwind, CSS modules, or plain CSS without adopting a new styling library.
- Component-Level Customization: Use swizzle to eject specific components when you need internal control while keeping the rest of the system managed.
I
Ito
Ito
AI code review tool that builds and runs your app on every PR, catches runtime bugs, and attaches a failing test as evidence.
Key features
- Targeted Test Plans: Reads the PR diff and description on open, then focuses testing on the user flows the change affects — no test cases to write and no suite to maintain.
- Containerized Test Execution: For every PR, Ito builds a real single-use copy of your app from source and navigates it like a real user against your real backend.
- Self-Healing Codebase: Proposes a fix as its own PR for the bugs it finds so the fix loop starts before an engineer opens the ticket.
- Product Demo Videos: Posts a polished walkthrough of every change to the PR so reviewers see the feature in action, not just the diff.
- Automatic Smoke Testing: Maps each change to at-risk user journeys and builds a smoke-test plan without human authoring.
- Full PR Findings with Evidence: Every failure includes a video replay, exact lines responsible, logs, and reproduction steps, with severity ratings to prioritize.
- Auto Re-run on Fix: Push a fix and Ito re-runs the failed flows automatically to confirm the bug is resolved before merge.
- Agent Sandboxes: Gives autonomous coding agents a live, managed copy of your app to build and test against without hitting production.
Best for
- AI-Generated PR Verification: Teams whose engineers and coding agents open many PRs a day get every one built, exercised, and evidence-backed before merge.
- Catching Runtime-Only Bugs: Surface authentication, concurrency, service-authorization, and data-migration bugs a static reviewer or diff-only AI can't see.
- Removing Manual QA Bottlenecks: Reclaim the hours each developer spends manually verifying AI-written code by delegating the pre-merge runtime pass to Ito.
- Regulated & Security-Sensitive Codebases: Financial, healthcare, and defense teams get SOC 2 Type II, isolated test runs, and zero data retention on every PR.
- Enabling Agent Automerge: Give autonomous coding agents a runtime gate so they can merge safely without an added human review bottleneck.
- PR Demo Artifacts: Reviewers and PMs get a runnable video walkthrough of the feature attached to the PR instead of guessing from the diff.
