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$500M+
in funding secured for our clients
UX prototyping services
The fact is that the UX prototyping removes the guesswork. At Lazarev.agency, your go-to AI UX design agency, interactive prototypes prevent those nightmare scenarios where you build something, launch it, and then discover users hate it. Usability issues get caught early when fixing them takes hours, not weeks of emergency rewrites.
- Validate ideas early
Test design concepts with real users before development begins. You'll know what works and what definitely doesn't before committing serious resources. - Cut development costs
Usability testing on prototypes finds problems when they're still cheap to fix. Way better than discovering critical issues after launch when everything's already built. - Simplify complex projects
Complex features get broken down into testable chunks. The systematic UX design approach reduces project complexity before it becomes a real problem.
Lazarev.agency designs the best UI for AI products. Officially.
Lazarev. is more than about making profits for us and our clients. We're committed to saving lives in Ukraine, taking on pro bono projects, championing diversity, equity, and inclusion.
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120+
awards backing our excellence
03
2015
founded, 10+ years of experience
04
San Francisco, CA
AI product design agency
05
Full-cycle product design
from user research to production-ready design systems
Among our clients:
Awards & Recognition
Our team’s work was honored with most of the world-known trophies
x5 the Webby
x5 Red Dot
x2 awwards
x4 the FWA
Real problems UX prototyping services solve
Product managers waste entire quarters building features users don't want. Development teams get stuck with unclear requirements that change mid-sprint again. Stakeholders make big design decisions based on gut feelings instead of data. These pain points cost companies millions in failed launches and emergency redesigns.
01
Stop building products users don't want
Interactive prototypes reveal usability issues before developers write production code. Real users test prototypes and the feedback is brutally honest in the best way. Testing results show which design solutions work and which totally miss the mark.
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Reduce development costs through smart planning
Wireframe design and information architecture work happens before any high fidelity prototype gets created. This approach maps out complex features while they're still easy to change. Clear visual representation means developers know exactly what to build.
03
Accelerate decision-making
Interactive prototypes in the high fidelity allow stakeholders to experience the entire product vision without the need to invest in the development. This transparency accelerates approvals in a big way and achieves buy-in.
Our approach to UX prototyping
UX prototyping process combines user research, rapid prototyping, and continuous usability testing to deliver products users actually want. Every prototype connects directly to business goals.
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Research-driven foundation
Everything starts with understanding user needs and pain points. The goal is making sure each interface element serves a specific purpose in the user experience, not just filling space because it looks balanced.
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Interactive prototype development
Closable prototypes made by the design team with prototyping tools of industry standards. High fidelity prototypes contain realistic information, real life interactions and effective visual design. The low-fidelity variations are laid out and user flows but not polished with graphics.
03
Systematic user testing
Real users test prototypes while the team collects user feedback on usability and how well the interaction design actually works. Testing results reveal those painful gaps between user expectations and actual product behavior.
See how we turn UX ideas into products
Explore case studies where concepts became live experiences. Real prototypes, real outcomes, and real improvements in user journeys.
Complete UX prototyping services
Comprehensive prototyping services cover every stage from that initial "we have an idea" concept through to development-ready specifications developers can actually use.
What our clients say
Our UX prototyping services are selected by product managers and their development teams. We provide them with a quicker development cycle, lower costs of the revision, and increased user satisfaction rates. However, do not simply believe us, see real feedback from our clients.
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"We've been working with Lazarev. since the very series seed to series B stages of our product. It's amazing how they always research and find ideas that exceed our own initial envision!"
Kumesh Aroomogan
Founder at Accern
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"We saw an increase in engagement metrics, in users and in resume submissions."
Marlena Stablein
Director of Operations, Blavity
Industries where prototyping makes the biggest impact
Lazarev.agency, the best user experience prototyping agency, expertise spans industries where user experience directly impacts business success, which, honestly, is most industries now. The team has delivered 200+ prototypes across different sectors, each tailored to specific regulatory requirements and user workflows.
Who we are and why teams like yours work with us
We exist for B2B teams under pressure to turn an AI roadmap into visible product usage, expansion, and a safer story in front of the C‑suite and investors. If design isn’t moving revenue, adoption, or retention, it’s decoration. We design to avoid that. Since 2015, we’ve shipped 600+ products and earned 120+ awards for work on complex, data-heavy tools: fintech platforms, AI copilots, decision engines, and vertical SaaS. Our work has helped clients turn “we have AI features” into “our customers actually use and pay for them.”
We started designing AI products in 2017, long before “AI-native” became a buzzword. With 30+ AI products shipped, we focus on the hard part most teams struggle with: making complex intelligence feel simple, trustworthy, and obviously valuable in a demo, a POC, or a QBR. We’re a 40+ person team of UX strategists, product designers, and analysts who treat design as a business function.
What sets us apart from a typical agency or a single in-house hire is pattern recognition at scale. We’ve seen what works – and what quietly kills adoption – across hundreds of AI and data-heavy products. That lets us spot failure modes early, bring proven interaction patterns to your team, and reduce the risk that your next AI release is another unused toggle in a settings menu.
We start with research not because it’s “best practice,” but because designing without understanding your users, your market, and your revenue model is just guessing with nicer pixels. From there, we collaborate with your product, AI, and design leaders to define where AI should show up, how it should behave, and how to make it obvious, safe, and monetizable.
If you’re a Head of AI, Product, or an AI-native founder who needs AI capabilities to be seen, understood, and used now, not someday, we’re built to be that partner.
At this stage, clients engage us for 4–6+ month AI & data product UX redesign programs, treating us as their primary product design partner for the core platform.
10+ years
of experience in UI/UX design
Trusted by over 1,000 companies of all sizes
120+
international industry awards
600+
projects successfully completed
Our proven 5-step prototyping process
This methodology has helped 200+ companies launch successful products with fewer post-launch revisions.
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Discovery
This stage involves interviews with the stakeholders, competitive analysis and audits of the products that are already in the market when necessary. The entire context will avoid the development of prototypes that appear grand but fail totally in the business objectives or market conditions.
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Interactive prototype creation
The design team prototypes classify by creating industry-standard prototyping tools in the form of clickable prototypes. Such interactive experiences can be used to simulate the real functionality, allowing the stakeholders to have an experience of the product vision.
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User testing and feedback collection
The prototypes are used by real users and the team receives a wide feedback on usability problems and the effectiveness of interaction design in the real world. The process of testing identifies some crucial points that will be learned to make the design changes and meet the expectations of the users.
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Design refinement and delivery
Final deliverables include interactive prototypes, component libraries, design specifications, and documentation explaining key decisions and rationale. Developers receive everything needed to implement designs accurately without constant questions.
Frequently asked questions
How we work, scale, and deliver measurable outcomes.
How long does the UX prototyping process take?
Single feature rapid prototyping is a 1-2 week affair. Full user tested comprehensive high fidelity prototypes typically require 4-6 weeks. Timeline is indeed very much dependent on the complexity of the project and the number of design iterations that testing during project development can show are necessary.
What's included in UX prototyping services?
This package consists of user research, planning of information architecture, wireframe design, interactive prototype development, full usability testing, user feedback, and design iterations depending on what is revealed during the process of testing.
How does prototyping reduce development costs?
Prototyping identifies usability issues and design problems before writing code, when changes cost hours instead of weeks of developer time. User testing provides data-driven insights that eliminate guesswork from development, reducing revision cycles by up to 60% in typical projects.
Can you create prototypes for mobile apps and web products?
Yes. Prototyping services cover web applications, mobile apps (both iOS and Android), desktop software, and cross-platform products. The process adapts to each platform's unique interaction patterns and user expectations. Mobile prototypes account for touch interactions, various screen sizes, and platform-specific conventions. Web prototypes consider responsive design needs and different browser behaviors.
How many design iterations are typical?
Most projects go through 2-4 major design iterations based on user testing feedback. Initial wireframes get refined after stakeholder review. First interactive prototypes get improved after user testing sessions. High fidelity versions get polished after final validation rounds. Budget for iterations upfront — they're genuinely where the real value comes from in this whole process.
Do you provide ongoing support after delivering prototypes?
Yes. Support includes answering developer questions during implementation, reviewing builds to ensure they match prototype specifications, and creating additional prototypes for new features as products evolve over time. Many clients work with the team long-term, prototyping new functionality as their products grow and scale.
Let's talk about your AI adoption challenge