• Post a Project

B2B Full-Cycle Product Development Bureau for SaaS

YOUR PARTNER TO BUILD MULTI-SIDED PLATFORMS

U1CORE is a product studio for the products where buyers, sellers, and operators meet, transact, and trust each other. 

Marketplaces, exchanges, auction systems, fundraising platforms, and operational CRMs with multi-role logic.

🔔 Book a Free Call: 
https://calendly.com/hello-u1core/30min

or visit our website - https://www.u1core.com/

OUR SERVICES: 

  • Min project size
    $25,000+
  • Hourly rate
    $50 - $99 / hr
  • Employees
    10 - 49
  • Locations
    Madrid, Spain
  • Year founded
    Founded 2019
  • Languages
  • Timezones

Overview by:

Reviewer avatar
Taras Oliinyk

1 Language that we service

  • English

28 Timezones that we service

ACT
Australia Central Time (ACT)
AGT
Argentina Standard Time (AGT)
AKST
Alaska Standard Time (AKST)
ART
(Arabic) Egypt Standard Time (ART)
AST
Arabia Standard Time (AST)
AET
Australia Eastern Time (AET)
BST
Bangladesh Standard Time (BST)
BET
Brazil Eastern Time (BET)
CAT
Central African Time (CAT)
CET
Central European Time (CET)
CNT
Canada Newfoundland Time (CNT)
COT
Colombia Time (COT)
CST
Central Standard Time (CST)
EST
Eastern Standard Time (EST)
EET
Eastern European Time (EET)
GMT
Greenwich Mean Time (GMT)
IDT
Israel Daylight Time (IDT)
IST
India Standard Time (IST)
JST
Japan Standard Time (JST)
MET
Middle East Time (MET)
MST
Mountain Standard Time (MST)
NET
Near East Time (NET)
NST
New Zealand Standard Time (NST)
PST
Pacific Standard Time (PST)
SGT
Singapore Standard Time (SGT)
SST
Solomon Standard Time (SST)
UTC
Universal Coordinated Time (UTC)
VST
Vietnam Standard Time (VST)

1 Locations

  • Madrid , Spain

Service Lines
Select Focus Area
CMS Focus
Adobe Experience Manager CMS
100%
Frameworks and CMS
User Experience Focus
Industries
Sports
20%
Advertising & marketing
15%
Business services
15%
Financial services
15%
Information technology
15%
Consumer products & services
10%
Real estate
10%
Clients
Midmarket ($10M - $1B)
80%
Enterprise (>$1B)
20%

Pricing Snapshot

Min. project size $25,000+
Avg. hourly rate $50 - $99 /hr
Rating for cost 5 /5

What Clients Have Said

U1CORE offers competitive pricing with good value for cost, as highlighted by clients who noted budget alignment and efficient project management. Specific project costs mentioned include an investment of approximately €7,000 and $25,000 for various services, indicating flexibility for different client sizes.

This summary is based on verified Clutch reviews.

Most Common Project Size

$10,000 - $49,999 based on 63 reviews
< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

Select a service to see pricing information

U1CORE - UI/UX and Dev Partner Review Insights

Overall Review Rating

5.0
  • Quality 5.0
  • Schedule 5.0
  • Cost 5.0
  • Willing to Refer 5.0

Top Mentions

Review Highlights

  • High-Quality UI/UX Design Services

    Clients praised U1CORE for delivering visually stunning and intuitive UI/UX designs. Their attention to detail and ability to translate complex ideas into user-friendly experiences were highly valued.

  • Effective Communication and Responsiveness

    Clients noted U1CORE's effective communication and responsiveness to feedback. The team was praised for their ability to quickly adapt to changes and maintain open lines of communication.

  • Strong Customer Service and Support

    Clients appreciated U1CORE's customer service, noting their willingness to go above and beyond to meet client needs, provide ongoing support, and ensure high client satisfaction.

  • Impressive Collaboration and Partnership

    Clients felt that U1CORE acted as true partners rather than just service providers, contributing ideas, anticipating needs, and aligning closely with clients' strategic goals.

  • Valued Industry Knowledge and Technical Expertise

    U1CORE's deep industry knowledge and technical expertise were frequently praised, with clients noting their ability to deliver high-quality, technically sound solutions.

  • Areas for Improvement in Timeline and Budget Management

    While generally positive, some feedback suggested room for improvement in managing timelines and budgets, indicating occasional delays and budget overruns.

U1CORE - UI/UX and Dev Partner Reviews

Submit a Review
All Filters

0 selected

Sort by
Services
Project Cost
Industry
Location

UX/UI Design for Digital Marketing Company

  • UX/UI Design
  • $10,000 to $49,999
  • Mar. - Aug. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"What stood out most was their ability to combine creativity with a deep understanding of business outcomes."

Oct 3, 2025
CEO, Digital Marketing Company
Anonymous
Verified
  • Advertising & marketing
  • Winnipeg, Manitoba
  • 1-10 Employees
  • Online Review
  • Verified

U1CORE provided UX/UI design services for a digital marketing company. They designed an interactive lead generation tool. Their work included conducting UX research, creating wireframes, and designing UI.

UI/UX Design Services for Talent Acquisition Firm

  • UX/UI Design
  • UX Strategy
  • $10,000 to $49,999
  • Apr. - July 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"What stood out to us was how U1CORE approached the work as a true partnership."

Oct 1, 2025
Marketing Manager, Onhires
Yulia Nekrasova
Verified
  • Other industries
  • Estonia
  • 11-50 Employees
  • Online Review
  • Verified

U1CORE was hired by a talent acquisition firm to develop practical use cases that demonstrate real-world applications of their product. The goal was to highlight the company's technical capabilities.

UX/UI Design for Beauty & Cosmetics Company

  • UX/UI Design
  • $10,000 to $49,999
  • Mar. - Aug. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"What stood out most about U1CORE was their ability to merge creativity with technical precision."

Sep 24, 2025
Product Development Manager, Beauty & Cosmetics Company
Anonymous
Verified
  • Other industries
  • Auckland, New Zealand
  • 51-200 Employees
  • Online Review
  • Verified

U1CORE provided UX/UI design services for a beauty and cosmetics company. The team analyzed the brand's current digital platforms and designed layouts that adapt to different screen sizes.

UI/UX Design for Branding Agency

  • Branding UX/UI Design
  • $10,000 to $49,999
  • Jan. - Aug. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"I am continually impressed with the quality, communication, and value they consistently provide."

Sep 18, 2025
Owner, Hardy Brands
Megan Armstrong wold
Verified
  • Advertising & marketing
  • Bozeman, Montana
  • 11-50 Employees
  • Online Review
  • Verified

U1CORE provided UI/UX design services for a branding agency. The team was tasked with creating high-fidelity screens with modern and clean designs for the client's mobile app.

UI/UX Design for HealthTech Firm

  • UX/UI Design
  • $10,000 to $49,999
  • Mar. - Aug. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Their collaborative approach ensured that every solution was tailored, scalable, and impactful."

Sep 17, 2025
Co-Founder/CEO, HealthTech Firm
Anonymous
Verified
  • Other industries
  • Canada
  • 11-50 Employees
  • Online Review
  • Verified

U1CORE optimized the UI/UX of a healthtech firm. The team conducted in-depth research, identified pain points, improved the UX framework, refreshed the UI design system, and redesigned the full patient flow.

Web Dev for Healthcare Design Solutions Company

  • UX/UI Design Web Development
  • User Research
    +1
  • Less than $10,000
  • August 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"What impressed me most was the team's deep understanding of both design and product strategy."

Aug 27, 2025
Founder & CEO, Healthcare Design Solutions Company
Karyna Bondarenko
Verified
  • Other industries
  • Ukraine
  • 1-10 Employees
  • Online Review
  • Verified

U1CORE redesigned a Web3 product website for a healthcare design solutions company. The team updated the site architecture and wireframes, created a modular design system, and built responsive layouts.

UI/UX Design for Technology Company

  • UX/UI Design Web Design
  • UX Strategy
  • $10,000 to $49,999
  • Feb. - Apr. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"The team was proactive, thoughtful, and consistently on point."

May 13, 2025
Co-Founder, Menter
Konstantin Semenenko
Verified
  • Other industries
  • Paris, France
  • 1-10 Employees
  • Online Review
  • Verified

U1CORE designed the UI/UX of a Web3 platform for a technology company. The goal was to create a modern, visually engaging design that reflected the client's brand identity and was responsive and scalable.

UX/UI Design & Branding for Custom Software Dev Company

  • Product Design UX/UI Design Web Design
  • User Research
  • Less than $10,000
  • Jan. - Feb. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They don't just make beautiful designs, but deeply analyze business goals and create solutions that actually work."

Mar 21, 2025
Owner, Beehive Logic
Rostyslav Pylypiv
Verified
  • Other industries
  • Ukraine
  • 1-10 Employees
  • Online Review
  • Verified

U1CORE provided UI/UX design and branding services for a custom software development company. The team was responsible for conducting research and analysis, creating design concepts, and delivering materials.

Web Design & Development for Solar Solutions Company

  • Web Design Web Development
  • Less than $10,000
  • Feb. - Mar. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They exceeded expectations and have been a valuable long-term partner."

Mar 15, 2025
CEO, Greenday Finance
Boris Piskun
Verified
  • Financial services
  • Laguna Beach, California
  • 11-50 Employees
  • Online Review
  • Verified

U1CORE designed and developed a website from scratch using WordPress for a solar solutions company. The team incorporated some existing code and improved the site's structure and functionality.

UX/UI Design Services for Business Incubator

  • Product Design UX/UI Design
  • $50,000 to $199,999
  • Nov. 2024 - Feb. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They see beyond the project itself, embracing the vision and legacy behind it."

Feb 28, 2025
VP, Khalifa Group
Belal Khalifa
Verified
  • Other industries
  • Dubai, United Arab Emirates
  • 11-50 Employees
  • Online Review
  • Verified

U1CORE designed software and e-commerce landing pages for a business incubator. The team also provided branding services. The client engaged U1CORE for multiple redesign projects.

Digital Product Subscription

🎯 Your Flexible Design Department That Scales With Your Business Perfect for: Startups and companies that need consistent, high-quality design without hiring in-house. Product teams that value speed, flexibility, and constant designer availability. Teams looking to scale design output without adding management overhead.

Small

Perfect for early-stage startups or small teams

$3,800 /month
  • UI Design
  • 1 active request at a time
  • 2–3 day average turnaround
  • Unlimited queued requests
  • Services:

Large

For companies that need even more

$9,999 /month
  • Unlimited queued requests
  • 1-day onboarding
  • Cancel anytime
  • 75% refund after the first week if unsatisfied
  • Custom number of active requests
Features

Small

$3,800

/mo

Medium

$4,900

/mo

Large

$9,999

/mo

UI Design

1 active request at a time

2–3 day average turnaround

Unlimited queued requests

Services:

1-day onboarding

Cancel anytime

75% refund after the first week if unsatisfied

Up to 3 active requests at a time

1–2 day average turnaround

All services from BASIC + more:

Priority support

Daily updates, demos & progress tracking

Monthly strategy call

Unlimited team members

Unlimited revisions

Dedicated dashboard

Custom number of active requests

Team assembled specifically for your needs (designers, devs, PMs)

Integration into your internal tools (Slack, ClickUp, Notion, Trello, etc.)

Ability to work in a hybrid setup with your in-house team

Custom terms for NDA, priority, reporting, and invoicing

Select only specific services if needed

Everything from PRO + extras like:

Small

$3,800

/mo

UI Design

1 active request at a time

2–3 day average turnaround

Unlimited queued requests

Services:

1-day onboarding

Cancel anytime

75% refund after the first week if unsatisfied

Up to 3 active requests at a time

1–2 day average turnaround

All services from BASIC + more:

Priority support

Daily updates, demos & progress tracking

Monthly strategy call

Unlimited team members

Unlimited revisions

Dedicated dashboard

Custom number of active requests

Team assembled specifically for your needs (designers, devs, PMs)

Integration into your internal tools (Slack, ClickUp, Notion, Trello, etc.)

Ability to work in a hybrid setup with your in-house team

Custom terms for NDA, priority, reporting, and invoicing

Select only specific services if needed

Everything from PRO + extras like:

Medium

$4,900

/mo

UI Design

1 active request at a time

2–3 day average turnaround

Unlimited queued requests

Services:

1-day onboarding

Cancel anytime

75% refund after the first week if unsatisfied

Up to 3 active requests at a time

1–2 day average turnaround

All services from BASIC + more:

Priority support

Daily updates, demos & progress tracking

Monthly strategy call

Unlimited team members

Unlimited revisions

Dedicated dashboard

Custom number of active requests

Team assembled specifically for your needs (designers, devs, PMs)

Integration into your internal tools (Slack, ClickUp, Notion, Trello, etc.)

Ability to work in a hybrid setup with your in-house team

Custom terms for NDA, priority, reporting, and invoicing

Select only specific services if needed

Everything from PRO + extras like:

Large

$9,999

/mo

UI Design

1 active request at a time

2–3 day average turnaround

Unlimited queued requests

Services:

1-day onboarding

Cancel anytime

75% refund after the first week if unsatisfied

Up to 3 active requests at a time

1–2 day average turnaround

All services from BASIC + more:

Priority support

Daily updates, demos & progress tracking

Monthly strategy call

Unlimited team members

Unlimited revisions

Dedicated dashboard

Custom number of active requests

Team assembled specifically for your needs (designers, devs, PMs)

Integration into your internal tools (Slack, ClickUp, Notion, Trello, etc.)

Ability to work in a hybrid setup with your in-house team

Custom terms for NDA, priority, reporting, and invoicing

Select only specific services if needed

Everything from PRO + extras like:

Our Story

We transform successful products into unicorns.

We are the growth partner that turns your existing product into a scalable revenue machine. Through a combination of enterprise-grade development, specialized design, and targeted Go-To-Market strategy, we help established businesses capture market share and accelerate growth.

  • 300+ Projects: From mid-market to enterprise scale.
  • $20M+ Revenue: Quantifiable success for our clients.
  • High Retention: 9 out of 10 clients come to us through recommendation

Meet the Team

U1CORE Bureau

U1CORE BureauTeam

U1CORE: UX Product Design & Development Services for SaaS, FinTech, Web3 & AI At U1CORE, we specialize in transforming innovative ideas into high-performing digital products. As a B2B Product Design & Development Powerhouse, we create seamless user

Taras Oliinyk

Taras OliinykCEO

🚀 CEO at U1CORE | Elevating Startups to Market Leadership with Strategic Design 🔥 As the CEO of U1CORE, I lead a design powerhouse, not just any agency. With over five years of collective experience, our team of UI/UX wizards uses an insatiable hu

Oleksandr Viktorov.

Oleksandr Viktorov.BDM

Yulia Braslavets

Yulia BraslavetsPM

PM at U1CORE | Keeping projects on track, teams aligned, and clients happy. Turning complex briefs into smooth workflows and delivered results — on time, every time.

What Sets Us Apart

Built for Growth-Stage Products

We specialize in startups and scale-ups that need more than a pretty interface — they need a product that converts, retains, and grows. Our work is designed to perform, not just to impress.

End-to-End Ownership

From the first discovery call to the final handoff, we own the entire process. No handoffs to mystery subcontractors, no gaps between design and development. One team, full accountability, consistent quality throughout.

Strategy-First

We don't just make things look good — we make them work. Every decision at U1CORE is rooted in business strategy, user psychology, and real market context. We ask the hard questions before opening Figma.

Clutch verification provides an additional layer of data to help you make the right purchasing decision of business services.

Learn More
Verified Client Reviews
31
Overall Review Rating
5
Source
Clutch
Last Updated
June 13, 2026

Business Entity

Business Entity Name UN1CORN Bureau OÜ
Source Estonia e-Business Register
Jurisdiction of Formation Estonia
Date of Formation April 16, 2025
Status Active
Last Updated August 3, 2025
ID 17222302

Credit Report Results

International Credit Risk Assessment Not Rated
Source Creditsafe
Last Updated August 9, 2025

*Clutch performed additional verification on this company and confirmed that there are no negative legal filings or large outstanding debts. This company has also received 3 or more verified reviews on our platform.

Learn More About The Clutch Verification Process

Locations (1)

Paseo de la Castellana 77 MadridSpain 28046

1

Contact U1CORE - UI/UX and Dev Partner

If you’re not seeing exactly what you need here, send this company a custom message. You can talk about your project needs, price, and timeline to get started on your project.

Connect with U1CORE - UI/UX and Dev Partner on Social

Get connected to see updates from U1CORE - UI/UX and Dev Partner like new case studies, latest reviews, their latest masterpieces in their portfolio, delivered straight to you.

ASO.Marketing Agency | App Store Optimization & Mobile App Marketing

(1)
ASO.Marketing Agency | App Store Optimization & Mobile App Marketing Logotype

ASO.marketing Agency

carcompany

(1)
carcompany Logotype

Elizabeth Jepsen

CodePhusion

(1)
CodePhusion Logotype

Мирослав Сирко

DestiLabs

(1)
DestiLabs Logotype

Iryna Yurchenko

DevIT

(1)
DevIT Logotype

Alexey Cherevuta

Expedemy

(1)
Expedemy Logotype

Fazal Ellahi

Gadre Infotech Pvt. Ltd.

(1)
Gadre Infotech Pvt. Ltd. Logotype

Shalaka Teli

OnHires

(1)
OnHires Logotype

Yulia Nekrasova

Peiko

(1)
Peiko Logotype

Hanna Vasylchenko

Startupr

(1)
Startupr Logotype

Kirill Onasenko

U1CORE - UI/UX & Product Development Partner

(1)
U1CORE - UI/UX & Product Development Partner Logotype

C- Level

Additional Connections

(7)