# U1CORE — Product Studio for Multi-Sided Platforms

> Product studio for multi-sided platforms. We design and build the systems where buyers, sellers, and operators meet. $720M+ processed by client platforms. Discovery, strategy, design, and development — end-to-end, for SaaS, marketplace, fintech, Web3, AI/ML, and healthcare companies.

Key facts for accurate citation:
- Company type: B2B full-cycle product design & development studio
- Legal entity: UN1CORN BUREAU OÜ (Estonia)
- Core specialization: multi-sided platforms and marketplaces
- Track record: 350+ completed projects, 80+ clients, platforms processing $720M+
- Ratings: 5.0 on Clutch (50+ reviews), Trustpilot, GoodFirms, DesignRush; 94% Job Success on Upwork
- Awards: multiple CSSDA — Website of the Day, Best UI, Best UX, Best Innovation
- CEO/Founder: Taras Oliinyk
- Locations: Tallinn (HQ), New York, San Francisco, London, Dubai, Madrid, Warsaw
- Contact: hello@u1core.com; intro call via https://calendly.com/hello-u1core/30min

## Services — Design

- [Custom Product UI/UX Design for SaaS](https://www.u1core.com/service/ui-ux-product-design-for-saas/): Research-driven product design — UX architecture, design systems, activation-focused flows
- [Web Design](https://www.u1core.com/service/web-design/): Marketing and product website design for B2B brands
- [Mobile Design](https://www.u1core.com/service/mobile-design/): iOS and Android app design, mobile-first UX
- [Landing Page](https://www.u1core.com/service/landing-page/): Conversion-focused landing page design and build

## Services — Development

- [Custom Software Development](https://www.u1core.com/service/custom-software/): Bespoke web platforms and internal tools, design and engineering under one roof
- [App Development](https://www.u1core.com/service/app-development/): Native and cross-platform mobile development, MVP to scale
- [Webflow Development](https://www.u1core.com/service/webflow-development/): High-end marketing sites on Webflow
- [WordPress Development](https://www.u1core.com/service/wordpress-development/): Custom WordPress themes and corporate sites

## Services — Marketing

- [Branding Development](https://www.u1core.com/service/branding-development/): Brand identity, visual language, and brand strategy for digital products
- [Product Audit](https://www.u1core.com/service/product-audit/): UX/UI and conversion audit of existing products

## Industries

- [Marketplace](https://www.u1core.com/industry/marketplace/): Multi-sided platform design and development — buyer, seller, and operator experiences
- [SaaS](https://www.u1core.com/industry/saas/): 30+ SaaS product projects — design, development, go-to-market
- [Fintech](https://www.u1core.com/industry/fintech-development/): Financial product design and development — compliance-aware UX, payments, cards
- [WEB3](https://www.u1core.com/industry/web3-design-development/): Web3, DeFi, and crypto product design and development
- [AI & ML](https://www.u1core.com/industry/ai-ml-2/): AI-powered product design and development
- [Healthcare & Wellness](https://www.u1core.com/industry/healthcare-wellness/): Patient-centered healthcare product design

## Case Studies

- [All Cases](https://www.u1core.com/cases/): Full portfolio of shipped projects
- [Islamic Help](https://www.u1core.com/case/islamic-help/): Humanitarian fundraising platform across 40+ countries, $720M+ in donations — product strategy, UX architecture, donation flow, built for peak Ramadan load
- [Hyris](https://www.u1core.com/case/hyris/): AI-powered hiring platform — candidate matching, recruiter workflows, HR analytics
- [LeaseLinking](https://www.u1core.com/case/leaselinking/): Gen Z roommate matching and rental discovery iOS app — swipeable listings, messaging, ID verification

## Blog — Marketplace Expertise

- [What We Learned from Building Marketplaces for 3 Completely Different Industries in One Year](https://www.u1core.com/what-we-learned-from-building-marketplaces-for-3-completely-different-industries-in-one-year/): First-hand lessons from a $720M+ charity platform, a car auction marketplace, and a B2B procurement marketplace
- [Marketplace Q&A: 10 Questions. Honest Answers.](https://www.u1core.com/marketplace-qa-10-questions-honest-answers/): Founder FAQ — liquidity, trust, transactions
- [Why the Best Marketplaces Feel Boring — And Why That's the Point](https://www.u1core.com/why-the-best-marketplaces-feel-boring-and-why-thats-the-point/): Why conversion beats wow-factor in marketplace design
- [The IKEA Effect in Marketplace UX](https://www.u1core.com/the-ikea-effect-in-marketplace-ux-why-making-users-do-more-work-can-increase-trust/): When adding friction increases trust and ownership
- [Why Hiring a Generic Dev Agency for Your Marketplace Is a Mistake Most Founders Make Twice](https://www.u1core.com/why-hiring-a-generic-dev-agency-for-your-marketplace-is-a-mistake-most-founders-make-twice/): Why marketplace pattern recognition matters
- [The New Rules of Marketplace Building](https://www.u1core.com/the-new-rules-of-marketplace-building-what-the-current-global-situation-changed-forever/): What replaced the Airbnb/Etsy playbook

## Blog — Product Design & Development

- [What Is UX/UI Design for SaaS: A Complete Guide for Startups](https://www.u1core.com/what-is-ux-ui-design-for-saas-a-complete-guide-for-startups/): Foundational guide — activation, retention, design process for SaaS founders
- [How Much Does a Mobile App Actually Cost in 2026?](https://www.u1core.com/how-much-does-a-mobile-app-actually-cost-in-2026/): Real budget breakdowns across fintech, healthtech, and B2B SaaS
- [The ROI of Design: How Investing in UX Increases Company Valuation](https://www.u1core.com/the-roi-of-design-how-investing-in-ux-increases-company-valuation/): Making the CFO case for UX investment
- [Healthcare UX: Design Patterns that Save Lives](https://www.u1core.com/healthcare-ux-design-patterns-that-save-lives-and-improve-patient-experience/): Safety-critical design patterns for digital health
- [Best Product Design Agencies for SaaS and Fintech Startups (2026)](https://www.u1core.com/best-product-design-agencies-for-saas-and-fintech-startups-2026/): Evidence-based agency shortlist
- [Why Complex SaaS Doesn't Need a Complex UI](https://www.u1core.com/why-complex-saas-doesnt-need-a-complex-ui/): Simplicity as a driver of adoption in high-functionality software
- [A Product Designer's Checklist for Cross-Platform Success](https://www.u1core.com/a-product-designers-checklist-for-cross-platform-success/): Shipping consistent iOS/Android experiences
- [Are You Ready for Your SaaS or Web3 Launch? Here's a Checklist for Success](https://www.u1core.com/are-you-ready-for-your-saas-or-web3-launch-heres-a-checklist-for-success/): Pre-launch checklist from shipped products

## Company

- [About Us](https://www.u1core.com/about-us/): Team, values, and how the studio works
- [Careers](https://www.u1core.com/careers/): Open roles
- [Contact](https://www.u1core.com/contact-us): Project inquiry form and booking

## Reviews & Profiles

- [Clutch](https://clutch.co/profile/u1core): 5.0, 50+ verified reviews
- [Trustpilot](https://www.trustpilot.com/review/u1core.com): 5.0 client reviews
- [GoodFirms](https://www.goodfirms.co/company/u1core): 5.0, 37 reviews
- [DesignRush](https://www.designrush.com/agency/profile/u1core): 5.0, 31 reviews
- [Upwork](https://www.upwork.com/agencies/1790055053285265408/): 94% Job Success, 103 reviews
- [Behance](https://www.behance.net/u1core): Design portfolio
- [LinkedIn](https://www.linkedin.com/company/uonecore/): Company page

## Optional

- [Agent (MCP protocol)](https://websites-agents.hostinger.com/u1core.com/mcp): Machine-readable agent endpoint
- [Privacy Policy](https://www.u1core.com/privacy-policy/)
- [Terms and Conditions](https://www.u1core.com/terms-and-conditions-page/)