Start
A store with up to 500 products to launch online sales.
from$3,500
5–6 weeks
- Catalog and filters
- Payments + shipping
- Order admin
- Basic SEO
Online stores, end to end
E-commerce development: a store that sells 24/7
We build stores that are easy to buy from on a phone: a fast catalog, a clear cart, two-click payment and reliable shipping. The category structure is built for SEO from day one.
Everything you need to sell
High-converting checkout
One-screen checkout, guest purchase, saved addresses and quick reorder.
Smart catalog
Filters, search suggestions, product variants, comparison and wishlists.
Payments & shipping
Stripe, local gateways, Apple Pay / Google Pay; carriers with pickup-point maps.
Inventory & ERP
Two-way sync with your ERP: stock, prices, order statuses and invoices.
Marketing tools
Promo codes, sales, loyalty points, email flows and product feeds for Google Merchant.
SEO & speed
SEO templates for categories and products, Product structured data and a fast mobile catalog.
Who it's for
- Fashion and accessories brands
- Furniture, decor and home goods
- Beauty and health
- Electronics and spare parts
- B2B wholesale
- Stores moving off a marketplace platform
What's included
- Assortment and competitor research
- UX prototype of catalog, product page and cart
- Unique design + mobile version
- Catalog, filters, search
- Online payment and shipping
- Admin for products and orders
- Product import from Excel/ERP
- SEO structure and structured data
- GA4 e-commerce analytics
How much an online store costs
Price and timeline are fixed in the contract after a free brief.
Business
Best valueA store with integrations for steady sales.
from$5,500
6–8 weeks
- ERP sync
- Customer account, loyalty
- Google Merchant feeds
- SEO category structure
Marketplace
A custom platform: multiple vendors, B2B, complex logic.
from$9,000
3+ months
- Vendor dashboards
- Wholesale prices and roles
- API and integrations
- Scalable architecture
Staged payments 40 / 40 / 20Formal contractPay in USD, EUR or UAHYou own the code and access
How we work
1–3 days
Brief & research
We study your business, competitors and goals. Price and timeline get fixed.
1 week
UX prototype
Structure and flows that lead a visitor to a request.
1–2 weeks
UI design
A custom design for your brand on every screen size.
2–6 weeks
Development
Clean code, integrations, SEO foundation, testing on real devices.
After launch
Launch & growth
Analytics, team training, then SEO and product growth.
Our work
E-commerceWooCommerceConversion Focus
UrbanCart Store
E-commerce platform for fashion & lifestyle products
A WooCommerce store with collections, best sellers, a fast cart and a mobile version built for one-handed shopping.
E-CommerceShopifyConversion Focus
Nova Commerce
Shopify store for lifestyle products
An atmospheric Shopify store: collections, customer reviews, shipping and returns benefits right on the first screen.
Why clients trust us
We don't promise "#1 in a week". We offer terms that protect your money and your project.
Formal contract
Stages, deadlines, price and warranty — in writing before work starts.
Fixed price
The price doesn't change as long as the scope stays the same.
Staged payments
40 / 40 / 20: you pay for the result of each stage, not everything up front.
12-month warranty
We fix bugs for free for a year after launch.
NDA
We sign a non-disclosure agreement before discussing details.
You own the code
Domain, hosting, repository and admin access are registered to you.
Platforms, technologies and integrations we work with
WordPressWooCommerceShopifyOpenCartReactNext.jsNode.jsLaravelFlutterReact NativeFigmaGoogle Analytics 4LiqPayMonobankWayForPayStripeНова Пошта1С / BASTelegram Bot APIOpenAI / Claude API
Common questions
Didn't find an answer? Message us on Telegram — we reply within an hour during business hours.
Message on TelegramHow much does an online store cost?
A starter store begins at $3,500, a store with ERP sync, loyalty and customer accounts at $5,500, a marketplace or B2B platform at $9,000.
Which payment methods can you connect?
Stripe, PayPal, local Ukrainian gateways (LiqPay, Monobank, WayForPay), Apple Pay and Google Pay, buy-now-pay-later and cash on delivery.
Can you migrate products from my old store?
Yes. We import products, categories, customers and orders from Shopify, WooCommerce, OpenCart or Excel and set up 301 redirects so you keep your rankings.
Which platform do you build on?
Shopify, WooCommerce or a custom stack (Next.js + a headless engine) — depending on your assortment, budget and integrations.
How long does it take to build an online store?
A starter store takes 5–6 weeks, a store with ERP sync and customer accounts 6–8 weeks, a marketplace from 3 months.
Will the store be SEO-optimised?
Yes: an SEO structure for categories and filters, meta tag templates, Product and BreadcrumbList structured data, a fast mobile catalog and a product sitemap.
Can I add products myself?
Yes, in the admin you add and edit products, prices and promotions and process orders. Bulk import from Excel or your ERP is also possible.
From the blog
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An online store only earns money when buying is effortless: products are easy to find, photos and descriptions answer questions, and checkout takes a minute. We design stores around exactly that journey — from a Google search to a repeat purchase.
Prostir Lab builds online stores with modern payments, shipping integrations, ERP and inventory sync. An SEO-ready category structure, product structured data and a fast mobile catalog help the store earn organic traffic without constant ad spend.
Tell us about your project — estimate in 24 hours
Free consultation, a work plan and a fixed price. No obligations.