Wall & Fifth

Product design for founders. Built around the business, not just the interface.

Founders building digital products face a specific challenge: the product has to work commercially, not just technically. The activation flow, the pricing logic, the upgrade path, the onboarding sequence — these are business decisions expressed in interface decisions. Wall & Fifth designs from the commercial layer down, not from the visual layer up.

£3k / month

Starting retainer

3–4 maximum

Clients at any time

12+ internally

Ventures built

No lock-in

Commitment

The commercial layer first

Founders who have built a business understand something that most product designers don't: the interface is not neutral. Every screen, every flow, every piece of copy in the product is making a commercial argument. The onboarding sequence is arguing that the product is worth the user's time. The pricing page is arguing that the value justifies the cost. The upgrade prompt is arguing that the paid tier addresses a real problem the user has right now.

When product design ignores the commercial layer, you get interfaces that are visually coherent but commercially ineffective. Beautiful dashboards that don't drive activation. Clean onboarding flows that don't convert to paid. Feature-rich products that users don't understand how to get value from.

Wall & Fifth designs from the commercial intent of each screen backwards — starting with what the user needs to do and what the business needs to happen, and then designing the interface that produces both outcomes efficiently.

Where founder products typically stall

The most common pattern in founder products: the core functionality works, the early users love it, but the metrics don't reflect that. Activation is low. Retention drops after the first week. The free-to-paid conversion rate is a fraction of what it should be.

The cause is almost always the same: the product was designed from the inside out. The founder knew what the product could do and designed an interface that exposed all of it. The new user — confused, impatient, evaluating three alternatives — needed the product to show them one thing first: the fastest path to the moment where the product's value becomes undeniable.

That moment — the activation point — is the most important design challenge in any founder product. Getting a user there, reliably, in the first session, is what separates products that grow from products that plateau.

What we focus on

  • Activation flow — the shortest path from sign-up to the first moment of genuine product value. Every unnecessary step removed, every point of confusion eliminated.
  • Onboarding architecture — the sequence that builds context, establishes habits, and ensures the user returns. Onboarding does not end at the first login.
  • Pricing and upgrade design — the pages, prompts, and flows that make the commercial model legible and the upgrade feel like a natural next step rather than a sales pitch.
  • Navigation and information architecture — the structure that makes the product feel simple even when it isn't. Complexity hidden behind clarity.
  • Empty and error states — the moments most designers ignore, which are often the moments users decide whether to stay or leave.

How we work

Commercial audit

For existing products, we start by mapping the commercial funnel against the actual interface — where users drop off, where the activation point is being missed, where the upgrade logic is unclear. We use session data where available and expert review throughout.

Flow architecture

Before any visual design, we map the critical flows at a structural level — the sequence of decisions, the information required at each step, and the transitions between states. Getting this right first prevents significant rework later.

Component design

We design at component level — building a system rather than individual screens. Every state accounted for, every variant considered, every edge case handled. Clean enough to hand off. Robust enough to scale.

Iteration

We review with the founder throughout, and with users where the timeline allows. The question at every review: does this get users to value faster? Does this make the upgrade feel natural?

What you get

  • Commercial product audit — friction map for existing products
  • Activation flow redesign — optimised for time-to-value
  • Onboarding architecture — built for retention, not just first login
  • Full UI design — components, states, variants, in Figma
  • Pricing and upgrade flow design
  • Design system foundation — scalable and documented
  • Developer handoff — specifications and assets

Who this is for

This engagement suits founders who:

  • Are building or rebuilding a digital product and want to get the design right from the start
  • Have a product with activation or retention problems that might be interface-related
  • Are preparing for a fundraise and need the product to demonstrate quality and commercial logic
  • Have accumulated design debt and need the product brought up to a standard that reflects where the business is now
The best product design is invisible to the user and obvious to the business. Users reach value without noticing how. The commercial metrics move without anyone being able to point to why.

Frequently asked questions

How involved do you get in product strategy, not just design?

As involved as the product needs. We're not a pure visual execution service. We ask about the commercial model, the activation funnel, the retention logic, the monetisation. The answers shape the design decisions. If you want a partner who just executes the spec, we're probably not the right fit. If you want one who challenges the spec when it needs challenging, we are.

Can you work with an existing product that needs rethinking?

Yes. Founder products often reach a point where the original design decisions no longer serve the business — because the customer has changed, the pricing has evolved, or the product has grown in ways the original flow can't accommodate. We audit the existing product, identify the most commercially significant friction points, and redesign from there.

Do you design for SaaS products specifically?

Often, yes. SaaS products have specific design challenges around onboarding, activation, the free-to-paid transition, and dashboard complexity. We understand those challenges because we've built SaaS-adjacent products ourselves. But we also design marketplaces, platforms, content products, and tools — the commercial logic varies but the approach is the same.

How do you handle the handoff to engineering?

We produce component-level Figma output with full state coverage — hover, focus, error, loading, empty — plus interaction specifications for complex behaviours. We can stay involved through the build phase to review implementation and catch decisions that diverge from the design intent. Clean handoffs are part of the standard.

What if the product doesn't have product-market fit yet?

Then the design work should be focused on learning, not polish. Early-stage products need interfaces that make it easy to test assumptions, gather feedback, and iterate — not beautifully designed flows built on unvalidated hypotheses. We calibrate the level of design investment to the stage of the product.

Design the product around the business model.

Tell us what you're building and where the commercial logic isn't translating into the interface. We'll tell you what the engagement looks like.