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UI and UX Design and Usability Testing for Software

Interface design backed by usability testing and accessibility review, so the design is validated before it is built. US product teams get this work in US hours, 9am to 1pm Eastern, with delivery from India. Website builds sit on website development. Storefronts sit on ecommerce design. Layouts for phone, tablet and desktop sit on responsive web design. Book a scoping call, or start with a free scoping session.

150+ clients 450+ projects 275+ engineers 15+ years
UI and UX design and usability testing, Vervali
Interface design validated before it is built, Vervali
Accessibility review in the same design pack, Vervali
ISO/IEC 17025:2017 testing laboratory accreditation mark

ISO/IEC 17025:2017Accredited testing laboratory

CMMI Maturity Level 3 process award

CMMI Maturity Level 3The process is written down and repeats

ISO 9001:2015 quality management certification mark

ISO 9001:2015Quality management

ISO/IEC 27001 information security certification mark

ISO/IEC 27001Information security

Interface Design, Then a Usability Test

This page is UI and UX: screens, flows and a test, so the design is validated before engineering writes it. US product teams get this work in US hours, 9am to 1pm Eastern, with delivery from India, from an ISO/IEC 17025 accredited lab with CMMI Level 3 process. Website builds sit on website development. Store catalogue, cart and checkout sit on ecommerce design. Phone, tablet and desktop layouts sit on responsive web design. Book a scoping call, or start with a free scoping session.

Interface Design

Screens, type, components and the visual system a person actually sees. Figma when the quote names it. A pretty file with no journey behind it is not the engagement. Native apps sit on mobile app development. This page is the interface the build will follow.

Usability Testing

Flows, empty states, errors and the path a real user runs. We test the design before it is built. We do not publish fake conversion percentages. Proof from delivery, when we have it, is sector and country. Stay here when the question is whether the work actually gets done.

Accessibility Review

WCAG review sits in the same pack, not as a surprise after launch. Legal-risk ADA and Section 508 work sits on accessibility testing. We do not claim a certificate we do not hold. A screen that fails a keyboard is not ready to build.

Need UI and UX that is tested before it is built? Book a scoping call.

Book a Call

What This Page Covers, and What Sits Next Door

This URL is UI and UX: interface design, usability testing and accessibility review. The website build sits on website development. Storefronts sit on ecommerce design. Layouts sit on responsive web design. Legal-risk ADA work sits on accessibility testing. Stay here when the question is the interface. We do not sell two invoices for the same week unless you asked for both.

Stay on This Page

You need screens, flows and a test before engineering writes the product. A free scoping session is how we see the journeys that already convert. Book a scoping call if the screens are already written down.

Go to Website Development

You need the site, the portal or the web application built and tested, not only the interface. Website development is that page. Native apps sit on mobile app development. Custom platforms sit on custom software development.

Proof From Delivery

Storefronts and platforms we designed, built and tested, sector and country. They show the journeys converted. They are not a claim each job was design-only. Deeper store write-ups sit on ecommerce testing.

USA · Illinois · CAD-products retailer

Before: the store was losing carts on a path that already had traffic. After the first quarter: 30% more online sales and 50% less cart abandonment. Sector and country only.

30% more online sales50% less cart abandonment

USA · Burlington · specialty retailer · WooCommerce

Before: manual processing was eating the operation and the store was not converting the traffic it already had. After three months: 60% more online sales, and 70% less manual processing.

60% more online sales70% less manual processing

One interface, scoped honestly

Book a Call

Tell us the journeys that already convert, and the ones that fail. We will come back with the scope and a quote. Or start with a free scoping session.

ISO/IEC 17025:2017 · CMMI Level 3 · US-hours coverage

Frequently Asked Questions

UI is the screens, type and the visual system a person sees. UX is the journey: research, flows, states and whether the work gets done. We design both, then test them. A pretty screen that fails a task is not the engagement. Usability testing and accessibility review sit in the same pack so the design is validated before engineering writes it. The website or app build sits next door.

We test it. Flows, empty states, errors and the path a real user runs sit in the quote, not as a workshop after launch. Accessibility review against WCAG sits on the same pack. Legal-risk ADA and Section 508 work sits on accessibility testing. We do not publish fake conversion percentages. Proof from delivery, when we have it, is sector and country. A Figma file with no test is not user-friendly.

We do not publish a 4 to 8 week band as a guarantee. Duration follows screens, research, whether we are redesigning a live product, and how many journeys sit in the quote. A small set of screens can be shorter. A multi-product redesign is not. The quote names the weeks. US product teams get this work in US hours, 9am to 1pm Eastern, with delivery from India.

Figma when the quote names it. Other tools, including prototyping and research tools, sit in the quote when they are the right fit. We do not run a tool catalogue as a guarantee. The deliverable is screens, flows and a test, not a licence list. Engineering handoff is named so the build team is not guessing. Stay here for the design. The website or app build sits next door.

Yes. Web, mobile and the storefront paths that already convert. Website builds sit on website development. Native apps sit on mobile app development. Store catalogue, cart and checkout sit on ecommerce design. Phone, tablet and desktop layouts sit on responsive web design. This page is the interface and the usability test. We do not sell two invoices for the same week unless you asked for both.

Yes, when the current product is live and the journeys no longer convert, or they fail accessibility. Redesign is a named line: research, screens, test, then the build sits next door. We do not restyle a theme and call it UX. A takeover of a prior vendor is named in the quote. Stay here when the question is the interface. Book a scoping call, or start with a free scoping session.

Clutch lists Vervali at $25 to $49 per hour as the published floor. Design cost follows screens, research, usability testing and whether accessibility review is in the same pack. A small set of screens is not a multi-product redesign. The quote names the hours. We do not sell a fake conversion percentage as a price. Book a scoping call for a written figure.
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