Most early-stage SaaS founders need the same thing: a senior UX designer who understands product, can ship fast, and won't lock them into a commitment they can't afford six months from now. This post outlines every real option — what each costs, what it gets you, and when each makes sense.
Option 1: Freelance UX designer
A good senior SaaS freelancer in the UK charges £450–£800 per day. For a three-month engagement on a product build, you're looking at £25,000–£45,000. The upside: you get a dedicated person who goes deep. The downside: good ones are booked 4–8 weeks out, availability drops fast, and when they leave, they take the context with them.
Option 2: A full-service agency on a project basis
Agencies quoting on a fixed-scope SaaS design project typically come in at £15,000–£60,000 depending on scope. You get a team, a process, and a deliverable. What you don't get is flexibility — change requests are scoped separately, and when the project ends, so does the relationship.
Option 3: Subscription design agency (no contract)
The fastest-growing model for early-stage SaaS. You pay monthly, get a defined output, and can pause or cancel. The best subscription agencies for SaaS (not just marketing graphics) give you a named designer, a Figma-based design system, and async comms. This is the model MoodBook Devs uses.
- Monthly rolling — no long-term commitment
- Consistent design language across every sprint
- Scales up or down with your roadmap
- Handoff-ready Figma files your engineers can actually build from
Option 4: In-house hire
The right answer eventually — but rarely at pre-seed. A junior product designer costs £32,000–£45,000 plus NI, pension, and tools. A senior is £65,000–£95,000. You also need to manage them, onboard them, and absorb the 3–6 month ramp-up. For most sub-£2m ARR SaaS companies, this is premature.
Which option is right for your stage?
The answer depends on your runway, velocity, and design maturity.
| Stage | Best option | Reason |
|---|---|---|
| Pre-seed / idea | Subscription agency | Low cost, no commitment, fast start |
| Seed / building MVP | Subscription agency or freelancer | Flexibility vs depth tradeoff |
| Series A / scaling | In-house + agency hybrid | Speed + institutional knowledge |
| Series B+ | In-house team | Volume and culture fit matter more |
Frequently asked questions
- Can I hire a SaaS UX designer for a one-off project with no contract?
- Yes. Freelancers work on a project basis with no ongoing commitment. Subscription agencies like MoodBook Devs also operate month-to-month, so you can start and stop as needed.
- What is the cheapest way to get SaaS UX design done for a startup?
- A subscription design agency is typically the most cost-effective option for consistent output. One-off freelancers can be cheaper for a single deliverable, but become expensive when your needs are ongoing.