# See Diffraction review your UI.

> See Diffraction review your UI. Choose a time for a demo with Justus.

Canonical: https://www.diffraction.sh/book-demo

- [Meet the Photon Engine.](https://www.diffraction.sh/photon-engine): Discover how Diffraction’s Photon Engine reviews changed web apps: context-aware exploration, verified UI findings and recorded browser evidence for your GitHub pull requests.
- [Give your agent the full picture.](https://www.diffraction.sh/developers): Connect Diffraction to Claude Code, Cursor, Codex or your terminal. Give coding agents UI review findings, screenshots, recorded flows and performance insights.
- [See the full spectrum of every diff.](https://www.diffraction.sh/): UI review for GitHub pull requests. Find visual and interaction regressions across browsers and screen sizes, with recorded evidence for every finding.
- [Privacy Policy](https://www.diffraction.sh/privacy): How Diffraction handles personal information, review evidence and your privacy choices.
- [Terms & Conditions](https://www.diffraction.sh/terms): Terms for using Diffraction, including reviews, subscriptions, credits and cancellation.
- [A clearer view. For every developer.](https://www.diffraction.sh/pricing): Starter for $20/month or Pro for $40/developer/month. Save 20% with annual billing. Monthly credits, unlimited repositories, and extra credits at $1 each.
- [A different perspective.](https://www.diffraction.sh/blog): Notes on UI review, browser evidence, and the details that make an experience work.
- [What is UI review?](https://www.diffraction.sh/ui-review): UI review is product experience review for UI-affecting GitHub PRs on web apps. Exercise the running product, find aberrations with evidence, and catch failures source review misses.
- [UI review vs visual testing](https://www.diffraction.sh/ui-review-vs-visual-testing): UI review checks the running product experience on GitHub PRs. Visual testing catches pixel baseline drift. Source-only PR bots review code. Why those miss product failures Diffraction calls aberrations.
- [Diffraction glossary](https://www.diffraction.sh/glossary): Definitions of aberration, UI review, and product experience review. How Diffraction names product experience failures on UI-affecting GitHub PRs for web apps.
- [UI review for your role](https://www.diffraction.sh/for): UI review framed for executives, designers and QA, engineers, and engineering leads. Product experience review for UI-affecting GitHub PRs on web apps. hello@diffraction.sh.
- [UI review for executives](https://www.diffraction.sh/for/executives): Product experience review for UI-affecting GitHub PRs. Catch costly aberrations before they hit brand, conversion, or governance. Design-partner interest: hello@diffraction.sh.
- [UI review for designers and QA](https://www.diffraction.sh/for/designers-and-qa): Verify the shipped UI matches intent on UI-affecting GitHub PRs. Evidence you can replay, not screenshot arguments alone. hello@diffraction.sh.
- [UI review for engineers](https://www.diffraction.sh/for/engineers): See what the running PR head actually does before you merge UI-affecting changes. Overview for agent and human PRs on web apps. hello@diffraction.sh.
- [UI review for engineering leads](https://www.diffraction.sh/for/engineering-leads): Confidence and efficiency at the PR boundary. Fewer post-merge product surprises without turning every PR into a manual QA session. hello@diffraction.sh.
- [The Three Checkboxes That Moved Almost a Billion Dollars](https://www.diffraction.sh/blog/three-checkboxes-almost-billion-dollars): On 11 August 2020, Citibank meant to send $7.8 million in interest. A silent default in Oracle Flexcube sent nearly $894 million instead, and three people signed off.
- [Six People and a National Signup Flow](https://www.diffraction.sh/blog/six-people-national-signup-flow): HealthCare.gov launched on 1 October 2013. By the morning of 2 October, war-room notes recorded six successful enrolments.
- [The Button That Was Costing $300 Million a Year](https://www.diffraction.sh/blog/button-costing-300-million-a-year): Jared Spool's classic case study: a major $25B retailer's checkout forced Login or Register. The flow worked, and still cost hundreds of millions until someone watched real behaviour.
- [A code diff is only part of the picture.](https://www.diffraction.sh/blog/why-ui-changes-need-ui-review): Why we’re building a review layer for the experience on the other side of a pull request.