We design portals, dashboards and SaaS products around the people who use them every day: clear flows, calm interfaces and a design system your developers can build and grow from.
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Web app and platform design is the UX and interface design of software people log in to: customer portals, dashboards, internal tools and SaaS products. It covers who the users are, the tasks they repeat, the flows and screens for each task, and every state in between, from empty and loading to errors and permissions, delivered as a design system developers build from.
Last reviewed 25 October 2026 by the Rubik Digital team.
You
I can never find the setting I need.
Rubik Digital
Navigation and information architecture rebuilt around the tasks people repeat, with search where it earns its place.
You
Every screen works differently.
Rubik Digital
A design system of shared components and patterns, so tables, forms and filters behave the same everywhere.
You
Our team needs training just to use it.
Rubik Digital
Flows simplified around real tasks, with clear labels, helpful empty states and guidance at the moment it's needed.
You
The dashboard shows everything except what matters.
Rubik Digital
Dashboards designed around the decisions each role makes, with the key numbers first and detail one click away.
Select an area to see what's involved. Most platforms need several, designed as one system.
Self-service portals where customers manage accounts, orders, documents and support without calling you.
Dashboards that put the numbers each role needs first, with filters and drill-downs that make sense.
Admin panels and back-office tools that make repetitive work faster and less error-prone.
End-to-end product design for subscription software, from sign-up and onboarding to daily use.
Interfaces that adapt to who's logged in, without hiding what people need or showing what they shouldn't.
A component library and rules in Figma, matched to code, so the product stays consistent as it grows.
A technical compliance platform repositioned and redesigned for the senior buyers who choose it.
B2B Professional Services · Design · Development
We repositioned a complex compliance platform into a clear enterprise proposition, aligning product, messaging and UX to support high-value pipeline growth.
Every stage is handled by the same designers, working alongside your product team and developers.
Start a projectWeb App & Platform Design, itemised
Users, roles and goals.
Interviews with users and stakeholders, plus a review of the current product and analytics.
Key tasks mapped.
User flows and information architecture for the tasks people repeat most.
Screens laid out.
Low-fidelity screens and states to settle structure before visual design.
Designed and tested.
High-fidelity screens and a clickable prototype, tested with real users.
Ready to build.
A design system, specs and walkthroughs, with designers on hand during development.
Portals, internal tools and SaaS products need different things from their design. Here's how they compare.
| Customer portal | Internal tool | SaaS product | |
|---|---|---|---|
| Main users | Customers who visit now and then | Your team, every working day | Subscribers deciding whether to stay |
| Design priority | Self-explanatory, no training needed | Speed for repeated tasks | Quick value, then depth over time |
| Hardest part | Making complex accounts feel simple | Data-heavy tables and bulk actions | Onboarding, plans and upgrades |
| Measured by | Fewer support calls | Time saved and fewer errors | Activation and retention |
It depends on the number of screens and user roles, how complex the data and workflows are, how much research and testing you want, and whether you need a full design system. Redesigning a handful of key flows costs far less than designing a new SaaS product end to end. We scope it from your product and users, with a fixed, itemised proposal.
Get a fixed proposalWhat moves the price
Every view, plus its empty, loading and error states.
Effect on budget: High
Each role adds views and states to design.
Effect on budget: Medium
Tables, filters, charts and bulk actions take the most care.
Effect on budget: High
Interviews and usability tests with real users.
Effect on budget: Medium
A full component library matched to your code.
Effect on budget: Medium
Product designers who work beside the developers who build platforms.
Our designers sit with our developers, so designs respect real data, performance and edge cases.
Empty, loading, error and permission states are part of the design, not left to guesswork.
A design system means new features ship faster and look like they belong.
We keep designing new features and refining flows as your users and product change.
Expert guidance and flawless execution. Our go‑to agency for all things digital.”
What people usually ask us before a project starts. If yours isn't here, ask it in the form and someone senior will reply.
A website mostly informs and persuades visitors. A web app is used to get things done, often daily and behind a login, so its design focuses on tasks, data, roles and every state of every screen.
Start a conversation
Tell us who uses it and where they get stuck. We'll come back with how we'd design it better.
