I am Oleksandr Filyuk, 15+ years and 130+ projects. I design iOS and Android apps for Chernihiv clients — from online services for hotels near Chernihiv Detinets to B2B apps for Chernihiv oblast wood processing companies.
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I design mobile apps for any platform and industry
Mobile app design following Apple Human Interface Guidelines with native iOS components.
Design following Google Material Design 3 guidelines adapted for the Android ecosystem.
Unified design for iOS and Android considering differences between both platforms.
UX/UI design for cloud services and business tools with complex interfaces.
Mobile store design with catalog, cart, payment and order tracking.
App design for messaging, communities or content platforms focused on engagement.
I study your audience, competitors, and business goals. I conduct UX research and create user personas.
I build the app structure, user flows, and navigation model. I define key usage scenarios.
I create schematic layouts for all screens. I test interaction logic before visual design begins.
I develop the visual style, design system, and detailed mockups for every app screen.
I create an interactive prototype for testing. I prepare specifications and assets for the development team.
Choose the optimal package for your project
10 screens
$1000$1200What's included:
30 screens
$3000$3600What's included:
50 screens
$5000$6000What's included:
50+ screens
$5000+$6000+What's included:
Cost will be calculated individually depending on your request.
Answers to the most popular questions
It depends on scope. MVP of 8-12 screens — 3000-5000 USD. Mid-size app of 20-30 screens with onboarding, auth, profile and main features — 6000-10000 USD. Complex app (B2B with roles, marketplace, banking) — from 12000 USD. The price covers UX research, information architecture, wireframes, final UI, interactive prototype, design tokens, iOS and Android specs. 30% prepayment, the rest by milestones. More on mobile app design and a paired website can be bundled.
MVP of 8-12 screens — 4-6 weeks: 1 week for research and IA, 2 weeks for wireframes, 2-3 weeks for UI and prototype. Mid-size app of 20-30 screens — 8-12 weeks. Complex — 12-20 weeks. I work step by step with weekly Figma and Loom demos — the client always sees progress. Each stage has a sign-off point after which going back gets expensive and slow.
Both, in two variants. Variant one — native design: separate mockups for iOS following Apple Human Interface Guidelines and for Android following Material Design 3. That gives perfect UX because users get the system they are used to. Variant two — cross-platform design for Flutter or React Native: a single set of screens adapted to both. Cheaper and faster but requires more compromise. Which approach to choose we discuss at the brief based on budget and goals.
Yes, and I often design the system so that a web version can be added later easily. Design tokens and components are platform-agnostic from day one — later we extend them to desktop and tablet. If from the start it is clear that both an app and a website are needed, I recommend doing them simultaneously — it is cheaper and more consistent. Website details on the web design in Chernihiv page.
Always. I do not start drawing without research — that is a principle. Standard package: interviews with 5-8 representatives of the target audience (30-45 minutes each), analysis of 3-5 competitors (foreign and Ukrainian), customer journey map, personas, feature prioritization with MoSCoW. Only then — information architecture and wireframes. Research is included in the price, not billed separately.
I do not develop personally — for that I have trusted teams. Native iOS — Swift developers, Android — Kotlin. Cross-platform — Flutter or React Native. I know teams in Chernihiv, Kyiv, Lviv, some are graduates of Chernihiv National Technological University and Chernihiv National Pedagogical University. I can either recommend a team or work with your existing developers — in that case I prepare a detailed handoff: specs, tokens, video walkthrough.
Every app I design meets WCAG 2.2 AA. That means text-to-background contrast at least 4.5:1, tap targets at least 44x44 points on iOS and 48x48 dp on Android, dynamic type support (user increases system font — app adapts), labels for all icons and buttons for VoiceOver and TalkBack, keyboard navigation and external switch support. I verify this on real devices, not only in Figma.
I deliver several artifacts. First, a Figma file with components and auto-layouts — the developer can review all states, variants, icons. Second, design tokens in JSON or SCSS — colors, typography, spacing, shadows, radii. Third, specifications separately for iOS and Android with recommended SF Symbols or Material Icons. Fourth, a 15-30 minute Loom video walking through key screens and scenarios. This dramatically reduces questions during development.
Yes. Chernihiv oblast is a forest region with active timber export. I build B2B apps for dealers and wholesale clients: product catalog with filters by wood species, cut sizes, volumes and FSC certificates, orders with confirmation, Nova Poshta tracking, PDF acts and invoices, manager chat. Separately I build mobile solutions for forestry brigades — output tracking, timesheets, GPS coordinates. Usually paired with a website.
Yes, this is one of my favorite categories here. Chernihiv is the oldest city of Ukraine with princely roots from the 9th century. For tourism brands I build apps with an interactive city map, routes through Chernihiv Detinets, Boldyna Hora, Anthony Caves, Saviour-Transfiguration and Borys-and-Hlib Cathedrals, audio guide in Ukrainian/English/Polish, hotel and tour booking. I apply the same approach to apps for Kotsiubynsky Park and Old Town walking tours.
Chernihiv has many businesses founded by parents in the 1990s and now run by children in their 30s and 40s, often with Chernihiv National Pedagogical University or foreign education. The second generation often initiates the mobile transformation — loyalty apps, B2B portals, CRM integration. I help them move the business to mobile without breaking what works: I keep the brand, the 50+ audience, and add modern convenience for younger customers. It is a delicate process but very rewarding.
I do design personally, no team delegation. For development I bring in Swift, Kotlin, Flutter and React Native specialists I have worked with for 5-10 years. Among them are Chernihiv people — some graduates of Chernihiv National Technological University and Chernihiv National Pedagogical University, some from Kyiv Polytechnic Institute and Lviv schools. A local Chernihiv team has an advantage — smaller time gap and the option to meet in person near Hollywood mall or in the Chernihiv IT Cluster office. All my contractors are Ukrainian.
Comparison with other options
| Me | Other agencies | |
|---|---|---|
| Platform guidelines | Apple HIG + Material Design 3 | One design for both platforms |
| Accessibility | WCAG 2.2 AA, VoiceOver, TalkBack | Never checked |
| Prototype | Interactive in Figma | Static screens |
| Design tokens and design system | Always handed to developers | Screens drawn one by one |
| Real-device testing | iOS + Android, different sizes | Simulator only |
| Developer handoff | Specs, tokens, video walkthrough | Just a Figma link |
I am Oleksandr Filyuk, a product designer with 15+ years of experience and 130+ delivered projects. Among them are dozens of mobile apps for banks, marketplaces, hotels, logistics, medical and B2B services. In Chernihiv I design apps for the tourism industry, Chernihiv oblast wood processing companies, historical-center hotels, IT teams from Chernihiv IT Cluster, and second-generation family businesses entering the mobile space.
Tourism apps with maps of Chernihiv Detinets, Boldyna Hora, Anthony Caves, Saviour-Transfiguration and Borys-and-Hlib Cathedrals, audio guide and bookings. B2B apps for dealers of Chernihiv oblast wood processing and manufacturing companies. Hotel apps with online check-in, mobile key, service ordering. Loyalty apps for restaurants and cafes around Heroes Alley and Mahistratska Street. Delivery services, marketplaces, medical apps.
Stage one — a one-hour brief focused on the business goal, not on features. I help the client decide whether they really need an app (versus a website or PWA), which problem it solves, how success is measured. Many clients arrive with "build an app like our competitors" — I help narrow this to specific value.
Stage two — UX research. Interviews with 5-8 representatives of the target audience, analysis of 3-5 competitors (often foreign — US, UK, Poland), customer journey map, personas, feature prioritization. Stage three — information architecture: screen tree, navigation, primary scenarios.
Stage four — wireframes in Figma which I test with users through Maze or UserTesting. Stage five — final UI with component systems, separately for iOS following Apple HIG and Android following Material Design 3 (or a single Flutter/React Native variant when cross-platform is chosen). Stage six — interactive Figma prototype and a Loom video walkthrough. Stage seven — developer handoff: specs, tokens, recommendations.
MVP of 8-12 screens (onboarding, auth, home, key flow) — 3000-5000 USD, 4-6 weeks. Mid-size app of 20-30 screens with full functionality (profile, settings, notifications, integrations) — 6000-10000 USD, 8-12 weeks. Complex (B2B with roles, marketplace, fintech, social) — from 12000 USD, 12-20 weeks. Billed separately: app icon design (300 USD), App Store and Google Play screens (500 USD), design system updates. 30% prepayment, the rest by milestones. The app often comes with a website — details on web design in Chernihiv and logo design in Chernihiv for full identity.
I do not draw one design and "adapt" it to two platforms — that ends with an app feeling foreign on both. Instead I create separate designs: for iOS — following Apple Human Interface Guidelines (native navigation, SF Pro fonts, SF Symbols, bottom tab bar, swipe-back), for Android — following Material Design 3 (Roboto, Material Symbols, FAB, bottom navigation with active state, ripple effects). It pays off — users recognise their system and start using the app immediately, with no learning curve. If the client chooses cross-platform (Flutter or React Native), I deliver a single universal design with adaptive elements that feel native on both systems.
Every app I design meets WCAG 2.2 AA. Text contrast at least 4.5:1, tap targets 44x44 on iOS and 48x48 dp on Android, dynamic type support (xs to accessibility5), labels for all icons for VoiceOver and TalkBack, keyboard and Bluetooth switch navigation. I test on real devices — iPhone, iPad, Pixel, Samsung — not only in simulators. That matters in Chernihiv, where my clients include tourism companies — among their customers are seniors with vision impairment who must receive the same experience.
Chernihiv is a princely city on the Desna river with a thousand-year history and a particular business character: calm, grounded, oriented to long-term relationships. I adapt my process to that character — I do not push trends, I do not use templates, I do not propose features for features' sake. My clients often turn out to be second-generation family businesses — children of founders who returned from Chernihiv National Pedagogical University or from abroad to run their parents' company. For them a mobile app is a way to step into a new era without breaking what has worked for decades. I help them move to mobile gracefully: keep the brand, the 50+ audience, and add modern convenience for younger customers. All my developers are Ukrainian, some are graduates of Chernihiv National Technological University and Chernihiv National Pedagogical University. Team meetings can be held in the Chernihiv IT Cluster office or in cafes of the Old Town.