SERGUSHKIN

Optimalprint

Case study

Cross-Platform Photo Printing Ecosystem

Unifying a global e-commerce print platform across web, iOS, and Android – and connecting it to a 30-country production network

Optimalprint unified design system interface showing a family using the cross-platform photo printing ecosystem on web and mobile devices, featuring real-time preview of personalized products like books and calendars connected to Gelato's 30-country production network.

Optimalprint, a product by Gelato

Canva Print · Vistaprint · Printful

Lead Product Designer – system architecture, design system, multi-platform UX

E-commerce · SaaS · Print-on-demand

Unified design system (100+ components), web + iOS + Android product, checkout architecture

Optimalprint is a global platform for personalised photo products – cards, books, posters, calendars, gifts – printed and shipped through Gelato’s real-time API network of partners across nearly 30 countries.

The product had grown across web and mobile without a shared system. The checkout process was 6 –7 steps, the design language drifted across platforms, and the editor didn’t reflect what the user would actually receive. My job as lead designer was to architect a single product across all surfaces, plug it cleanly into the Gelato Network ecosystem, and cut the path from idea to print to a few clicks.

Keywords:
– B2B + B2C SaaS
– Multi-platform product
– Design system
– System-level interaction models
– API-driven UX
– E-commerce

The challenge

A complex domain – personalisation, print specs, dynamic pricing, multi-region production – that the user shouldn’t feel. The interaction model had to handle real-time previews, locale-specific catalogues, and live network data from the Gelato API, while remaining understandable in three taps. And it had to scale: every component had to work across web, iOS, and Android without diverging.

Checkout interface with unified design system, showing 3-step flow for shipping and payment. Real-time order summary displays print cost, delivery fees, VAT, and total price in GBP before one-tap purchase on mobile or web.
Mobile app interface showing 'Import Images' gallery with recent photos, edit/duplicate/delete actions. Unified design system enables seamless photo upload from camera or library for personalized print products across iOS and Android.
Web editor interface for customizing posters with real-time preview, paper type selection (coated silk), orientation options, and country availability.

My Role

I led product design across the whole ecosystem – research, IA, core flows, design system, and the handover to engineering – partnering with the Gelato Network team, product managers, and local market teams in 30 countries.

– Defined the cross-platform interaction model (“Choose → Customise → Print”) and aligned web, iOS, and Android around it.

– Architected the checkout from 7 steps to 3, with one-tap re-order and persistent draft state.

– Designed a unified design system of 100+ components covering web and native platforms, respecting Human Interface Guidelines and Material Design where it mattered.

– Designed the real-time preview system that surfaced the live Gelato Network state – production location, ship-by date, and price – without overwhelming the user.

– Partnered with engineering to define the API contract for editor state, preview, and order, so design and data shared the same shape.

– Worked across product, engineering, operations, and 30 local market teams to keep one product feeling local in every region.

Impact

A multi-channel product is only as coherent as its design system. If the same component behaves differently on two platforms, you don’t have a product — you have two.

Key Screens

Editor (web + mobile)
  • Real-time preview reflecting live print specs
  • Behavioural-data template recommendations
  • Photo upload from camera, library, or social
  • One-tap variant switching (size, paper, finish)

Goal: Make personalisation feel like designing, not configuring.

Checkout
  • 3-step flow: address → shipping → pay
  • Live ship-by date from production network
  • Saved drafts and persistent cart across devices
  • 1–2 click checkout on mobile

Goal: Cut every second between intent and order.

Process

Discovery & research

I analysed the order funnel and the Gelato Network API surface, ran key-scenario research (creation, preview, order), benchmarked against Canva, Vistaprint, and Mixbook, and interviewed both end users and B2B partners.

System architecture

Before any UI, I defined the system: a single core flow shared across surfaces, a shared editor state model, and a contract with the Gelato API for previews and pricing. The platform-specific work then became local optimisation, not parallel reinvention.

UX strategy & wireframes

Unified the experience for web, iOS, and Android. Cut the path from selection to order from 7 steps to 3. Added real-time preview and templates derived from behavioural data.

Design system & UI

A unified design system for web and mobile with a minimalist UI that gets out of the way of the photo. Personalised template recommendations, interactive previews, and visual storytelling. Native components on iOS and Android that respected each platform without breaking the shared system.

Cross-functional handover

Worked tightly with Gelato Network product, development, and operations, and with local teams in 30 countries – the design hand-off through Figma Dev Mode plus written guidelines so engineering owned the same source of truth.

Outcome & Reflection

The outcome was a unified visual language for the entire Gelato ecosystem, an intuitive, fast interaction model, and an architecture ready to scale into new regions and product categories. The team gained a sustainable UX methodology embedded in the development process. Optimalprint is no longer just a printing service – it’s a digital ecosystem where web, mobile, and a 30- country production network turn user memories into physical objects in three clicks.

Catalogue showcasing hardcover photobooks with bestsellers in Europe & Asia. Features durable protection, glossy/matte coating options, CMYK color standards, and global shipping via Gelato Network across 30 countries.
Product selection interface displaying mug, poster variants with dimensions and pricing. Unified design system enables one-tap variant switching for size, paper type across web + mobile platforms in Gelato Network.