Apps Value builds shopping apps in Flutter for brands, retailers and marketplaces: one codebase for iOS and Android, connected to the store backend you already run, with fast checkout through Apple Pay, Google Pay and cards, push notifications for drops and abandoned carts, and a design that looks like your brand rather than a template. Fixed price, agreed before development starts.
Apps Value, a mobile app development agency in Cracow, Poland, builds e-commerce apps in Flutter for iOS and Android, for companies in the United States, Europe and the Middle East. The app connects to your existing store backend, such as Shopify, commercetools, WooCommerce or a custom system, and covers catalog, search, product pages, cart, checkout with Apple Pay and Google Pay, accounts, orders and push notifications. A first version usually takes 10 to 16 weeks and is priced as one fixed number after scoping.
When a meaningful share of your revenue comes from people who buy again. A website wins new customers from search, while an app keeps the ones you already have: it sits on the home screen, sends a push when a drop goes live or a cart is left behind, and checks out in two taps with Apple Pay. If most of your buyers purchase once a year, the website is usually enough.
Wishlists, order history, saved sizes and addresses, and a loyalty program that is visible every time the customer opens the app.
Push notifications to followers, a fair queue, and inventory that updates live so no customer pays for an item that is already gone.
Flutter draws its own interface, so product pages, transitions and typography follow your brand exactly on both platforms, not a store template.
These are the parts of a shopping app that decide whether it sells. The backend behind them usually already exists, and we build on it rather than replacing it.
Categories, collections, fast search with filters for size, color and price, and product pages with galleries, variants and stock per size.
Apple Pay, Google Pay and cards through Stripe or your store's own checkout, discount codes, shipping options and taxes calculated by the backend.
Sign in, saved addresses and payment methods, order tracking, returns requests and a history the customer can reorder from.
Drop alerts, back in stock, abandoned carts, shipping updates and campaigns, segmented so customers do not switch them off.
Saved items that sync across devices, points or tiers, and rewards redeemed at checkout.
Several languages including right to left layouts such as Arabic, local currencies and prices, supported by Flutter out of the box.
No. In most projects the products, prices, stock, orders and payments already live in a commerce backend, and the app reads and writes them through its API. Shopify exposes a Storefront API built for this, commercetools and similar platforms are API first, and WooCommerce and custom stores have REST APIs we can extend.
Keeping one backend means one source of truth: a price changed in the admin changes on the website and in the app at the same time, and orders from both land in the same place. What we add on our side is usually a thin layer for app specific needs, such as push notification targeting, drop queues or loyalty rules the store platform does not handle.
When there is no backend yet, or the business model does not fit a store platform, for example a marketplace where many sellers list their own items, we build the backend as well. That is the Copped case below, and our marketplace app development page covers how multi seller payments and payouts work.
By reserving the item when it goes into the cart, not when the payment finishes. A limited release sends thousands of people to the same product at the same second, and a store that only checks stock at payment sells the last pair twice.
The rest of a good drop is preparation: a push to followers at a planned time, a queue that lets people in fairly instead of rewarding whoever refreshes fastest, and a checkout short enough to finish in seconds with Apple Pay. On Copped, a marketplace for limited streetwear releases, real time inventory and a checkout built for speed were the core of the product.

A marketplace for buying and selling limited edition streetwear, with product listings, user profiles, real time inventory, secure transactions and a checkout flow built for speed. Scoped tight and shipped from zero to a full marketplace in 3 months.
Read the Copped case study Flutter · Payments · PayoutsA booking platform where clients pay for sessions in the app and trainers receive payouts through Stripe, with cancellations and refunds handled. The same payment foundations a shop needs: cards, wallets, refunds and reconciliation.
Read the EveSport case studyNot on physical goods. Apple's guideline 3.1.3(e) requires products used outside the app, such as clothing, shoes or cosmetics, to be paid through your own provider, so the commission is only what Stripe or your store's payment partner charges. The store commission applies to digital goods sold inside the app, such as a paid membership that unlocks in app features.
The mixed case needs care. A physical product with a paid loyalty tier on top means two payment flows reviewed under different rules. What the stores take on digital purchases is in our guide to in app purchase fees, and how marketplace payments and payouts are designed is in payments in marketplace and booking apps.
Repeat customers drive revenue, the brand experience is part of what you sell, you run drops or loyalty programs, or your model does not fit a store template, such as a marketplace, rentals or subscriptions with physical delivery.
A small store on Shopify that wants its catalog in an app can start with an app builder subscription for far less. And if most sales come from search, the website deserves the budget first, since Flutter apps do not replace an SEO friendly store, as we explain in when not to use Flutter.
We audit your store backend and its API, map customer journeys and payment rules. Output: a product brief you confirm.
Version one drawn screen by screen, integrations named, exclusions written down. Output: one fixed price and milestones.
Clickable prototypes of the shopping journey in your visual identity, tested on phones before any code is written.
Each sprint ends with a build on your phone connected to a test copy of your store, with real products and sandbox payments.
Listings, privacy declarations and review notes, published on your own App Store and Google Play accounts.
Crash monitoring, analytics on the funnel from product page to purchase, and the next release based on what customers do.
The cost follows the weeks of work. A first version on top of an existing store backend usually takes 10 to 16 weeks, and a marketplace with many sellers or a new backend takes longer. What moves the number most is the state of your backend API, the checkout model, drops and queues, loyalty rules and the number of languages.
We agree one fixed price after scoping, tied to a written scope with its exclusions named. Current price bands are on our pricing page, and how each product decision adds weeks is explained in what an MVP app costs.
Apps Value, a mobile app development agency in Cracow, Poland, builds e-commerce apps in Flutter for iOS and Android, connected to Shopify, commercetools, WooCommerce or custom backends, for brands and retailers in the United States, Europe and the Middle East.
Yes for mobile shopping apps. One codebase serves iOS and Android, the interface follows your brand exactly on both, and it handles catalogs, animations and checkout smoothly. For a web store that must rank in search, a web framework is the better choice.
Yes. The app reads products, collections, prices and stock and creates carts and orders through Shopify's Storefront API, so the store admin stays the single place where the catalog is managed.
A first version on top of an existing store backend usually takes 10 to 16 weeks from agreed scope to release in the App Store and Google Play. A multi seller marketplace or a new backend takes longer.
No. Physical goods must be paid through your own payment provider under Apple's guideline 3.1.3(e), so only the payment provider's fee applies. The store commission applies to digital goods and features used inside the app.
Yes. Flutter supports right to left layouts natively, so Arabic screens mirror correctly, alongside local currencies and prices for each market.
You do. The code, the store accounts and the customer data are in your company's name, and the app is published under your own App Store and Google Play accounts.

What does it run on, who buys again, and what should the app do that the website cannot? You will get a straight answer on whether an app pays off, what the first version should contain and how long it would take.