ETENRU
Contact Us→

(SaaS)

SaaS product and MVP development

SaaS product development end to end: product design, onboarding, front-end, a working MVP and a marketing site. Examples: InvoiceCraft, Talyro, ZeroFlow.

Updated: 2 October 2026By the OpenWeb360 team

Building a SaaS product starts before the first line of code: who the product is for, which problem it solves and what is the smallest version you can test it with. We design and ship SaaS products end to end: product design, front-end and a working MVP, and we also build the marketing site that sells the product.

What an MVP is and why start with one

An MVP (minimum viable product) is the smallest working version of a product that solves one core problem and lets you get feedback from real users. It saves months and budget because you don't build things nobody needs. A good MVP is narrow rather than pretty: one clear value the user reaches fast.

What we do in a SaaS project

  • Product design: user journey, key screens, dashboards and components.
  • Onboarding: how a new user reaches first value in minutes. See also SaaS onboarding: the first 5 minutes.
  • Front-end and MVP development: a working, fast and properly built product.
  • Marketing site: the product's website that explains the value and brings sign-ups.
  • Interactive demo: a way to try the product before signing up.

Our SaaS work

  • InvoiceCraft: onboarding flow design for a billing SaaS, taking a freelancer from sign-up to the first sent invoice in minutes.
  • Talyro: product design and marketing page for a cold-outreach SaaS that sells the product's speed before the visitor signs up.
  • ZeroFlow: product design and an interactive demo for a voice-AI SaaS that answers every incoming call around the clock.

How the process works

  1. Clarify: audience, problem, competitors and the scope of the MVP.
  2. Design: the user journey and key screens, which you can approve before development.
  3. Build: the MVP as a working version.
  4. Launch: the marketing page, the demo and the first users.
  5. Iterate: next steps based on feedback.

What it costs

The scope of a SaaS project varies widely, so we give a written quote after clarifying your goal and scope. For the website, brand and marketing part see our pricing page: the Premium package starts at €2,500. For general pricing logic see website cost in Estonia 2026.

Common mistakes of SaaS founders

  • Too many features are built before the first user.
  • Onboarding is complicated and the user never reaches value.
  • The marketing page talks about features, not the user's problem.
  • There is no clear, narrow target audience.
  • Feedback isn't collected or used.

Frequently asked questions

How long does it take to build a SaaS MVP?

It depends on scope. A narrow MVP can be ready in weeks, a more complex one in months. We give an exact timeline after clarifying the scope.

Do you also build a marketing site for a SaaS?

Yes. We build the product's marketing page that explains the value and leads to sign-up, and an interactive demo if needed.

Should I start with design or development?

With design. The user journey and key screens have to be thought through and approved before development, which saves rework.

How do I get a quote for a SaaS project?

Send a short description of your product idea and target audience or book a 30-minute call. We reply within one day.

Building a SaaS product?

Tell us your idea. We'll help take it from design to a working MVP.

Let's talk→