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Conversion Rate Optimization Agency for AI SaaS

SaaS growth is easier with smart product design from a
UI/UX agency that knows how to improve ROI and LTV

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Trusted by SaaS companies

Stonemason Services

  • Continuous Product Evolution

    SaaS Design Services

    We help SaaS products grow through a continuous design process that combines UX audits, hypothesis testing, and product redesigns. Our approach ensures every design decision is tied to business goals—improving usability, conversion, and long-term retention. By working in cycles, we identify pain points, validate improvements, and deliver scalable solutions for both startups and established platforms.

    • Design System
    • SaaS UI Design
    • SaaS UX Design

      • Improve Conversion Rate (CR) – visitor → signup → paying customer

      • Improve Customer Acquisition Cost (CAC) – lower cost through better UX and higher conversion

      • Improve Lifetime Value (LTV) – longer retention and higher revenue per customer

  • Back on track with UX updates

    SaaS Redesign Services

    We help SaaS products unlock growth with a full redesign approach. Our process focuses on aligning product experience with business goals—streamlining user journeys, improving usability, and modernizing the interface. Whether it’s a dashboard, a web platform, or a mobile app, we redesign products to boost adoption, retention, and customer satisfaction.

    • Design System
    • LTV SaaS UX Design

      • Improve Lifetime Value (LTV) – stronger retention and customer loyalty

      • Improve Engagement – more frequent and meaningful product use

      • Improve Retention – reduce churn and grow loyal user base

  • Open the hidden problems in product

    SaaS
    UX Audit

    We run in-depth UX audits to uncover friction points that block user growth. Through heuristic evaluation, usability testing, and competitor benchmarking, we identify where your product loses conversions, retention, and engagement. Each audit ends with a clear roadmap of quick wins and strategic improvements to maximize ROI.

    • Conversion Analysis
    • Retantion Gaps
    • Usability

      • Improve Conversion Rate (CR) – reduce drop-offs in critical flows

      • Improve Customer Acquisition Cost (CAC) – better UX lowers acquisition costs

      • Improve Lifetime Value (LTV) – stronger retention and recurring revenue

  • Improve the visual brand

    Visual Effects

    We enhance digital products with subtle yet powerful visual effects that create a polished, modern look. From engaging micro-interactions to smooth animations and motion design, our goal is to make the user experience feel intuitive, dynamic, and memorable

    • 3D Modelling
    • Branding
    • Graphic design

      • Improve Decision-making speed – dashboards that make insights actionable

      • Improve User Engagement – interactions that encourage product exploration

      • Improve Product Perception – elevate brand quality through modern visuals

Free Demo Audit

Let’s talk.

We grow as you grow

Our clients’ results say more about our expertise than we can.

  • 60+ clients

    Satisfied clients

  • 110% ROI

    The average income after ux updates

  • 93%

    Design scalability score

  • A deep UX analysis of the product

  • Measure metrics and set goals

  • Evaluate the solutions

  • Design updates and checking results

Portfolio

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  • SaaS growth is easier with smart product design from a UI/UX agency that knows what your customers need

  • We help Customers
    Make Profits that match their — Passions

    We design smart digital products that balance user experience, business strategy, and sustainable growth.

    Smart
    Product Design

  • 169

    projects done

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Set the right inbound marketing strategy

Book a focused one-on-one call during which Anastasiia will review your current approach, challenge blind spots, and show you where to focus next.

Anastasia Shapoval

Founder & CEO

Check what our clients say about
working with Stonemason:

I am delighted with our productive collaboration! Although our acquaintance was quite random, as they say, nothing happens by chance. I used to think that design was just about beauty, but then I realized with you that design is also about efficiency, which is very important to me as a marketer, and you deliver that. Communication is always on point, and I am glad that we can always upgrade our processes to have even more effective collaboration.

Nazar Dziadyk

CEO/Co-Founder at Growth Kitchen

Working with Anastasia`s team is a real pleasure. They integrated seamlessly into our business and worked as if they were part of our internal team. Despite the complexity and multi-component nature of our product, which includes several sub-products for different audiences, they approached the study of our functionality with great care and attention to detail. I would especially like to note their responsibility in implementing the project and bringing the result to a high standard. The team…

Ulyana Shtybel

Co-Founder, CEO of Quoroom

The team perfectly conveyed the technical specifications: all requests from both customers were taken into account. The project required quick implementation, and the team coped very quickly and professionally, beautifully and in detail describing ideas, suggestions, changes, etc. We received a result that could be immediately transferred to development. The team met all our needs professionally, quickly, and with clearly executed work.

Alex Pryshlyak

CDTO & Brand Manager at Superhumans Center

Get started with
a free 3-day trial 

Open the unique opportunity to try the service as a trial. Open the new ways and visions how to improve your SaaS product.

    • 01

      Discovery Call

      On the first step we will onboard in the internal background of the SaaS product.

    • 02

      Design

      Based on the researches we will create a couple of the ideas and visuals to improve the problem areas.

    • 03

      Work Presentation

      Discussion of the solutions and potential of growth will help us to move with the clear vision from both sides.

    • 04

      Partnership

      If you decide to implement our proposal of the research and visuals we will sign the contract.

    Photos made by team – good vibes enthusiasts

    About us

    Our team is a mix of high-speed energy and focused craftsmanship. We’re fueled by big ideas, travel inspiration, and our unofficial Chief Happiness Officer (yes, the cat). From the first wireframe to the final launch, we bring a bit of our world into yours.

    FAQ

    • A UX audit is a structured analysis of a digital product that identifies usability issues, conversion barriers, and user experience gaps. It combines UX heuristics, analytics data, and user behavior insights to provide clear recommendations for improving usability and increasing product performance.

    • A UX audit identifies friction points in the user journey, such as confusing navigation, unclear messaging, or poor interaction design. Fixing these issues helps users complete key actions faster, which can significantly increase conversion rates and reduce drop-offs.

    • A SaaS product often needs a redesign when user engagement drops, conversion rates stagnate, or the interface becomes difficult to scale. A redesign improves usability, modernizes the interface, and aligns the product experience with current user expectations.

    • Most UX audits take between one and three weeks depending on product complexity. The process usually includes UX analysis, analytics review, competitor research, and a structured report with prioritized improvement recommendations.

    • UX research helps teams understand real user needs, motivations, and pain points. Instead of relying on assumptions, companies can make informed design decisions that improve usability, increase engagement, and build products that users actually want to use.

    • Absolutely—we design both web and mobile interfaces. While we don’t take on landing pages as standalone projects, we include them as an integral part of the overall product experience when we’re designing your digital product.

    • Yes, we offer flexible engagement options depending on the scope and needs of your product. Companies can work with us on a project basis, part-time collaboration, or ongoing design support. This flexibility allows teams to access senior UX and product design expertise without committing to a full-time in-house hire.