#3 of 15 UX agencies in Zagreb
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DECODE
Zagreb, Croatia
About
EU-based full-service software development partner with strong software product design capability — UX/UI, wireframing, design systems and information architecture — for mid-market and enterprise clients.
Our Take
Forty case studies are published and most close with a number—237K active users across 137 countries for Vitastiq, 1 million downloads for CAFU, 6 million for Fling, 26 million devices for Shake, and an app for 70,000 crew across 40 Royal Caribbean ships.
The numbers are adoption and scale rather than design outcomes, and the process behind them is described in engineering terms: the Vitastiq redesign cites Google Analytics behaviour analysis across every screen and a Figma handoff, while the Bizzon testimonial praises analytical approach and troubleshooting rather than design work.
Relationships are long—Vitastiq runs from 2016, ASEE is described as five-plus years—and the firm has operated since 2012 from named addresses in Zagreb and Düsseldorf with 90+ staff.
Best for product companies needing a durable build partner with UX folded into delivery, especially in fintech, banking and health.
Key strengths
- Outcome numbers appear on most case studies rather than a select few, and they are adoption metrics that are hard to manufacture: 237K users, 1M and 6M downloads, 26M devices, and 70,000 crew members.
- Engagements are long and named: Vitastiq since 2016, ASEE for five-plus years across leading banks, and one engagement documents eight engineers embedded into the client's team.
- Two verifiable EU offices with street addresses (Radnička cesta 47, Zagreb; Hammer Straße 19, Düsseldorf), operating since 2012, plus a spun-out SaaS product (Shake) as evidence of in-house product capability.
Good to know
- Published metrics measure adoption and scale, not design impact—ask which of the numbers the design work moved, and how that was attributed.
- Case study narratives lead with engineering; research artifacts, personas and usability testing are not shown—clarify whether discovery is a separately priced phase.
- Rates here are directory-sourced rather than published by the firm, so confirm the band and whether design and engineering bill differently.
Reviewed by Gabor Kiss
Founder of UX Agencies · UX Lead at SAP · Aug 10, 2026
Based on the agency's publicly available portfolio. Own this agency? Claim your profile to provide additional context or request a review update.
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