Expert App Design UI/UX Company | iOS & Android Interface Specialists

Most projects fall between £5,000 and £25,000. MVPs with a core flow and a small design system sit at the lower end; complex apps with multi-role states, advanced components, and testing land higher. We quote by phase with clear deliverables, so you can start lean and invest progressively as traction grows.

UX is the strategy and structure—research, flows, IA, and usability—ensuring tasks are easy and intuitive. UI is the visual layer—color, typography, icons, spacing, and states—that communicates hierarchy and brand. Great products need both: UX to define the path, UI to guide attention and reduce friction.

Simple MVPs can be designed in 3–4 weeks. For feature-rich apps with complex flows, design systems, and testing rounds, expect 6–10 weeks. Timeline depends on scope, feedback cadence, and stakeholder alignment. We plan weekly milestones and show progress in transparent Kanban boards.

We design in Figma, plan in FigJam/Miro, prototype in ProtoPie or Principle, and hand off with Figma Dev Mode or Zeplin. We manage design tokens and component libraries for consistency. For motion, we define Lottie/AE specs that engineers can implement in SwiftUI, Jetpack Compose, or React Native.

Yes. We align with Apple’s Human Interface Guidelines and Google’s Material Design to ensure native feel and faster app-store approvals. We also meet WCAG 2.1 AA accessibility where feasible and document platform-specific patterns to reduce developer rework and user confusion.

Absolutely. We start with a heuristic audit, analytics review, and user interviews to identify friction. Then we prioritize high-impact wins, build a component-based system, and iterate through prototypes and tests. We’ll protect what already works and redesign what blocks conversion or retention.

Yes. We create reusable components, tokens (color, type, spacing), and a pattern library with usage guidelines. This reduces inconsistencies, accelerates delivery, and future‑proofs your product as features grow. We also include governance tips for teams to scale design sustainably.

We design to measured outcomes. That means clear hierarchy, friction-reducing flows, persuasive microcopy, and social proof. We map KPIs to screens, plan A/B tests, and use heuristics proven to lift conversion. Post-launch, we analyze funnels and iterate to improve activation and retention.

Discovery workshops, research, IA, wireframes, visual UI, prototypes, usability testing, a design system, and developer-ready specs. Every engagement includes accessibility checks, component documentation, and an explicit handoff plan so developers can build efficiently and accurately.

Yes. We run moderated or remote usability tests with real users, focusing on key tasks like onboarding, search, and checkout. We capture friction points, prioritize fixes, and retest improvements. Testing is lightweight, fast, and integrated into each design iteration.

We plan buffer time for dev feedback, track updates in a shared backlog, and version components in Figma. We document deviations from design due to technical constraints and ensure accessibility and UX standards remain intact. Clear change logs keep everyone aligned.

Yes. We design native variants that respect platform norms—navigation, gestures, and system components—so your app feels at home on each OS. For cross‑platform builds, we strike a balance between consistency and platform expectations.

We create App Store and Google Play assets—screenshots, feature graphics, and short promo videos—with copy that communicates value fast. We align with current store guidelines and run A/B tests to optimize conversion where available.

Business goals, target users, success metrics, brand assets, feature list (must‑have vs later), known constraints, and any research or analytics. Access to stakeholders and developers accelerates decisions and reduces rework.

We define KPIs with you—activation rate, task completion, time‑to‑value, funnel drop‑offs, NPS, and retention. We set up events in analytics, review heatmaps and session replays where appropriate, and iterate based on evidence, not hunches.