
Sushi Box
Ordering built for the phone: 8 categories, 74 items, dish sheets with weight and composition, and one tap to call or send a ready-written Viber order.
- Mobile-first website
- Ordering
- UA · EN
03Mobile applications
Mobile-first products and custom mobile experiences — for customers who decide on the move, and for owners whose decisions can’t wait for a laptop. We recommend an app only when a mobile-first website won’t do the job.
HatalyX conceptOn this page: a HatalyX concept app with fictional data — no client app is shown — and live mobile-first websites: Sushi Box, the Ari Zona e-menu, Iregi Fatelep.
Today, at a glance
One decision waiting, projects in progress, the day’s tasks.
AI summarises, a person decides
Summaries are drafted by AI and checked by a person before anyone acts on them.
Approve on the spot
The offer, what changed, and two clear choices.
What it solves
Five situations where the phone decides — and, for each, where our answer is live, or that it is shown as a concept.
Products designed for the phone first, then scaled up to larger screens.
Sushi Box — 8 categories and 74 items, built for the phone
One tap to call, or a ready-written order in a messenger.
Sushi Box — call the shop or send a ready-written Viber order
A menu made for the guest’s phone: search, categories, photos and a basket.
Ari Zona e-menu — UA · HU · EN, search and a basket
A companion app for daily decisions: approvals, tasks and summaries.
Shown as a HatalyX concept, with fictional data
A straight recommendation: often a mobile-first website does the job for less.
Part of the free first consultation
What we build into it
The format follows the job: a mobile-first website, an installable web app or a native app. Your offer names which one, and why.
Example interface
A restaurant menu that lives on the guest’s phone. It is a mobile-first website, not an app — and it does an app’s job at the table.



Wood and gold taken from the restaurant itself; Ukrainian, Hungarian and English one tap apart.
Each dish with its photo, portion and price; one tap adds it to the basket.
Menu, events, about the restaurant and the basket — always at the bottom of the screen.
In the work
Our real phone-first work is mobile-first websites, not native apps. Open them on your phone — nothing to download.

Ordering built for the phone: 8 categories, 74 items, dish sheets with weight and composition, and one tap to call or send a ready-written Viber order.

A menu on the guest’s phone in three languages: food and drinks, search, categories, dishes with photos and a basket.

A catalogue that works in the yard: sizes and gross prices on the phone, with a fixed bar to call or jump to timber or firewood.
Real client workHatalyX concept
These three are mobile-first websites. No native app is shown here: HatalyX has not released a client app yet, so the app above is a concept with fictional data. When a project needs a native app, the offer says so — and why.
All workHow the work goes
Five steps, the same for everything we build. You know what you get, for how much and when — before any work starts.
How projects are scoped and paidWe get to know your business and your goals. A short conversation shows what you need — and what you don’t.
A detailed offer and plan: exactly what you get, for how much, and when.
We design and build the system and keep you informed along the way — no black boxes.
We test on key screen sizes and modern browsers, fix what we find, and prepare the launch with your approval.
We launch, train you to manage it, and stay close afterwards — one message, and we help.
Other services
Corporate, catalogue, hospitality and ordering sites — built around how customers decide.
Booking engines, portals, admin panels and tools that run in the browser.
Customers, requests, projects and documents — one place for the team to work.
Catalogues, price lists, ordering, reservations and availability.
Automations and AI-assisted drafts — with a person making the decisions.
Start a project
A free, no-obligation conversation. Tell us about the business — we’ll recommend only what is worth building.
or write directly