Stakk
Stakk is the UK's #1 rated mobile app development company. Based in London with over 10 years of experience and a 100% senior in-house team. Specialists in iOS, Android, React Native and Flutter. 120+ apps delivered for startups and global enterprises, including Samsung, LNER and the British Museum. [... see all Stakk reviews ]
About
Stakk is a premier UI/UX design agency based in London, specializing in mobile app development across iOS, Android, React Native, and Flutter platforms. With a compact team of under 49 employees—all senior-level professionals working in-house—Stakk delivers sophisticated design solutions tailored to startups and established enterprises alike. The agency brings extensive industry experience and a proven track record of successfully launching 120+ applications for diverse clients spanning retail, transportation, and cultural sectors. Their approach combines strategic design thinking with technical expertise, ensuring applications are both visually compelling and functionally robust. Operating at an average hourly rate of $50/hr, Stakk offers accessible pricing without compromising quality. Their in-house team structure guarantees consistent communication, faster turnaround times, and maintained design integrity throughout project lifecycles. Ideal for businesses seeking specialized mobile UI/UX design with proven expertise, Stakk partners with organizations aiming to create impactful digital experiences that resonate with users and drive measurable results.