UI
Kit &
Components
Library
Design

Mobile app screens reviewed by a team, with comment cursors

One System, Every Screen

Without a shared kit, every new screen reopens settled questions. Which blue, which button, which spacing. A proper UI kit answers them once. Designers assemble faster, developers stop rebuilding the same card, and the product stays consistent as the team grows.

  • Mobile app screen fragment
  • Mobile app screen fragment
  • Mobile app screen fragment
  • Mobile app screen fragment
  • Mobile app screen fragment
  • Mobile app screen fragment
  • Mobile app screen fragment
  • Mobile app screen fragment
  • Mobile app screen fragment

How You Benefit

Faster to Build

2.52x IDS

the Visium design system made its complex healthcare product measurably faster to build on.

Component Depth

189 cmps

the HubSpot UI kit we shipped, one library covering an entire product surface.

Consistent Onboarding

up to 61%

faster developer onboarding when the team builds from one documented kit.

Deeper User Engagement

+47%

Bombardier mobile app showed an almost doubled engagement rate after we took the project in our hands.

Higher User Retention

2.8x RR

Pipedrive’s mobile deal management flow increased retention due to its high performance and look.

Team Productivity

+40%

For team management apps, like Virtups, productivity rates skyrocket when we engage in Mobile Design.

What does Mobile App Service entail?

Five layers turn a scattered interface into one component library, from the first audit to a dev-ready kit your engineers inherit.

Current-state review

UI Audit

Every existing screen checked for duplicate styles, drifting components and gaps.

Design tokens

Foundations

Color, type, grid, spacing and effect styles set once as the kit's base layer.

UI kit elements

Core Contains

Buttons, inputs, cards and menus built as reusable, named components.

Every condition

States, Variants

Hover, active, disabled and error states so each component is production-ready.

Dev-ready kit

System

Documentation, naming and a structured Figma library your team builds from.

Highlight Work

Discover the products we designed, techniques we implemented, and results we achieved.

Levitate

Our main focus has been on developing an intuitive user interface that provides ease of interaction. Our approach has been deeply rooted in understanding the users’ needs, preferences, and behaviors. We prioritized simplicity and clarity in design, aiming for a clean and uncluttered layout that facilitates easy navigation and control.

View full story 😊
  • Wellness

    Client type

  • 41% CR

    Conversion

  • 4.1x RR

    Retention

  • +51%

    Increase in the number of users

  • +73%

    Increase in user satisfaction

  • +44%

    Revenue growth

Need a Kit Your Whole Team Can Build From?

First things first... please share your contact details

This will help our team get in touch with you within 24 to 48 hours via email.

How We Build a UI Kit System

Seven stages take your interface from audit to a maintained component library. Foundations come before components, and components before patterns, so nothing is built twice. You review each stage before the next begins.

briefing stage of the mobile app design process
strategy stage of the mobile app design process
analytics stage of the mobile app design process
wireframe stage of the mobile app design process
concept stage of the mobile app design process
flows stage of the mobile app design process
next steps stage of the mobile app design process
  • briefing stage of the mobile app design process

    UI Audit

    We collect every screen and catalog the interface as it stands today: colors in use, type styles, spacing, every button and input variant.

    Duplicates and inconsistencies get flagged against a single reference. The audit shows exactly how much drift exists and sets the scope for the kit.

  • strategy stage of the mobile app design process

    Design Tokens

    The kit’s base layer comes first. We define color styles, a type scale, a spacing and grid system, and effect styles such as shadows and radii.

    Set as tokens, these values flow into every component downstream, so a single change updates the whole system.

  • analytics stage of the mobile app design process

    Elements

    With foundations fixed, we build the atomic ui kit elements: buttons, inputs, selects, checkboxes, cards, tags and navigation.

    Each is a named, reusable component tied to the tokens, not a one-off drawing. This is the layer that makes assembly fast.

  • wireframe stage of the mobile app design process

    States and Variants

    A button is not finished until every condition exists. We build hover, active, focus, disabled, loading and error states, plus size and style variants, using component properties so one element covers every case.

  • concept stage of the mobile app design process

    UI+

    Core elements compose into larger patterns: forms, tables, modals, filters, empty states and dashboard ui kit cards.

    Built from parts that already exist, these stay consistent automatically and give designers whole sections to drop in rather than rebuild.

  • flows stage of the mobile app design process

    Assets

    A matched icon set and shared assets round out the kit. Icons are drawn on one grid at consistent weight, sized to the type scale and delivered as components, so they swap and recolor like any other part of the system.

  • next steps stage of the mobile app design process

    Handoff

    The library gets organized for real use: clear naming, logical Figma structure, usage notes and variables.

    Developers receive tokens, specs and a documented kit they can build from on day one, plus guidance on extending it.

Briefs We Solve Most Often

  • Shauna Lakes
    Shauna Lakes

    CMO, Fashion Startup

    We’d designed our main screens but needed a funding round, fast. The team turned those screens into a stable UI kit our developers could build the rest of the product from. We walked into the round with a working MVP, not a slide deck.

    Realtor mobile app on a phone
  • Robert Jones
    Robert Jones

    VP, Smart Tech Company

    We were growing quickly and our interface was falling apart. Every feature looked like a different product. Rondesignlab built one component library that pulled it back together, and new screens now match without anyone policing them.

    IoT companion mobile app on a phone
  • Greg Meyers
    Greg Meyers

    founderFounr

    Contractors rotated through our product and each one guessed at how things worked. A documented design system fixed that. New people now read the library, understand the system in a day and ship work that fits.

    EdTech mobile app on a phone
Realtor mobile app on a phone
IoT companion mobile app on a phone
EdTech mobile app on a phone

Countless Industries

From healthcare design systems to fintech component libraries, every kit carries sector knowledge from the first token.

Industries we design mobile apps for

Case Study

See how we apply UI Kit & Component Library to match a specific case. The cherry on top of our designs:

App Mobile

This case presents the concepts of enterprise applications on a mobile platform made by our designers at Rondesignlab.

View full case 😊
  • Influence

    Client type

  • 49% CR

    Conversion

  • 3.8x RR

    Retention

FAQ

  • What’s a UI kit and a component library?

    A UI kit is the visual starting point: styles, colors, type. A component library is those components built to be reused and maintained. We deliver the library, so the kit stays usable as the product grows.

  • Can you build a kit from our existing product?

    Yes. We start with a UI audit of your current screens, keep what works, and rebuild the rest as reusable components without a full redesign.

  • What do we receive at the end?

    A documented Figma library: design tokens, core and advanced components, icons, usage notes and developer-ready specs your team can build from immediately.

  • How long does a UI kit take?

    Scope decides it. A focused kit can take as little as one sprint, a full design system for a large product takes longer. You get a timeline after the audit.

  • How is this different from your design system service?

    A UI kit is the component layer. A full design system adds governance, contribution rules and cross-product scaling. We can start with the kit and grow it into a system.

Clutch Review

Their impressive comprehension of all the challenges that the project entailed makes them the go-to partner for any future digital projects.

Furthermore, Rondesign Agency’s responsive team is thorough during projects and when providing quotations.

“
Colin Eldridge

Colin Eldridge, Digital Producer, Skyword, Inc

Ready to Give Your Team One Source of Truth?

First things first... Tell us how to reach you!

This will help our team get in touch with you within 24 to 48 hours via email.

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