Services · Mobile app development · Ecommerce apps
Codeeo handles ecommerce app development USA retailers and brands need when customers buy from many states at once: iOS and Android shopping apps with accurate stock, fast wallet checkout, shipping promises that hold, loyalty and returns. We plan each app around the rules that apply nationwide, from sales tax after the Wayfair decision to accessibility, state privacy laws and the FTC's rules on reviews and shipping.
Our team of 80+ works from Dubai, Riyadh and Karachi and has delivered 200+ projects across the UAE and the US. American clients work with us remotely, with discovery, design reviews and sprint demos held by video call and documented in writing. You keep the code, the store listings and all customer data.
200+ companies across the US and the UAEFrom a first store to a listed developer
What a US shopping app can include
Selling across the United States means selling into dozens of tax jurisdictions, several time zones and a mix of state privacy laws, while customers expect the same quick checkout everywhere. A shopping app that works well in one state can still fail in another if tax, shipping estimates or consent rules are hard coded for a single market.
We design the backend so rules are configured by state and region rather than written into the app, then build the features customers notice. The first release only carries what your platforms, carriers and fulfillment network can support from day one. Features that depend on a new warehouse, marketplace or loyalty provider move to a later phase, so the app never promises what your operation cannot yet deliver.
Fast search with typo tolerance, synonyms and filters, product pages with size and fit guidance, and collections your merchandisers publish without a developer. Large catalogs load quickly because images and data are cached close to the shopper, whether they are in Seattle or Miami. Spanish product content can be added beside the English source when your customer data shows the demand.
Shoppers find what they want in a few taps.
Checkout calls a sales tax service that calculates state and local tax for the delivery address, applies product exemptions and records each transaction for filing. Rules for each state are switched on as your sales there create an obligation, which your tax advisor tracks.
Tax collected correctly as you grow into new states.
Apple Pay, Google Pay, PayPal, Venmo where your provider supports it, saved cards and buy now, pay later options, all processed by a PCI DSS compliant provider. Physical goods are paid for outside Apple's in-app purchase system, as the App Store guidelines require.
Customers pay the way they already do everywhere else.
Delivery estimates drawn from your warehouses, cutoff times and carrier data from USPS, UPS or FedEx, shown before checkout. The FTC's Mail, Internet, or Telephone Order Merchandise Rule expects sellers to have a reasonable basis for shipping claims and to tell customers about delays, so delay notices are built into order messaging.
Fewer complaints and chargebacks over late orders.
For chains, the app shows availability by store, offers pickup or curbside at the nearest location and routes ship from store orders when the warehouse is short. Store teams work from a simple pick and handover screen. Store hours, holidays and staffing are set per location, so a store in Phoenix and one in Boston each offer realistic pickup times.
Stores and the app selling from one inventory.
Points and tiers across app, web and stores, replenishment subscriptions with clear renewal terms and easy cancellation, and digital gift cards. Renewal flows are designed to meet the strictest state automatic renewal laws you sell into.
Repeat revenue without surprise charges.
Verified buyer reviews, photos and questions with moderation rules applied evenly. Incentives are disclosed and insider reviews labeled, in line with the FTC rule on consumer reviews and testimonials that took effect in October 2024.
Social proof that holds up to scrutiny.
Notices, cookie and tracking consent, universal opt-out signal handling and a request flow for access, deletion and correction. Settings vary by the customer's state, and marketing SDKs only load once consent rules allow.
One privacy setup that adapts to each state's law.
A restock alert sent at noon Eastern lands at nine in the morning on the Pacific coast and in the early hours in Hawaii. Campaigns are scheduled by each customer's local time, segmented by region, past purchases and loyalty tier, and capped so nobody receives too many messages in a week. Results feed back into the console by campaign and region.
Messages that arrive when people are awake to act on them.
Orders, returns, refunds, promotions, push campaigns and reports managed from a web console, with role based permissions for head office, regional managers, stores and support.
Your team runs the app across every region from one place.
Who this is for
American commerce runs on many models: national chains with hundreds of stores, regional grocers, direct to consumer brands that ship from one warehouse and marketplaces of independent sellers. Each faces the same national rules but needs a different first release. We start from how your orders are fulfilled today and which states drive most of your sales, then plan a rollout that adds regions and features in a sensible order. Rollouts usually begin where your customers are most concentrated, which gives the clearest early read on demand, delivery accuracy and support load.
Brands selling from one or two fulfillment centers need fast reorders, subscriptions, reliable delivery dates and tax handled for every state they reach. Most already run on Shopify or a headless platform, so the app shares the same catalog and customer records and adds push notifications and loyalty the website cannot match. Subscription renewal terms are written to satisfy the strictest state you ship to, which keeps one flow valid nationwide.
Retention features matter more than acquisition here.
Retailers with stores across several states need per store inventory, pickup and curbside, ship from store routing and reporting by region. Integration with point of sale, ERP and order management systems takes most of the effort, so we map data flows before designing screens. Pilot stores test pickup and inventory accuracy before the rollout reaches every market, and lessons from the pilot shape the national release.
We usually launch in one region before rolling out further.
Founders building a marketplace need seller onboarding, payouts through a marketplace payment platform, listing rules, dispute handling and tax handling under state marketplace facilitator laws. These rules shape trust and liability, so we design them with your counsel before writing code. Seller tools for listing, pricing and fulfillment get as much design attention as the buyer app, since sellers leave platforms that are hard to manage.
New ventures need a first version that proves demand without building everything at once. We help choose the smallest set of features that lets real customers buy, then plan the next releases around what usage data shows. Architecture choices are made so the app can grow without a rebuild. We document decisions so investors and future hires understand why the product works the way it does.
A focused first release teaches you the most.
How we work together
Most US clients start with a fixed scope first release, followed by a monthly retainer for continuous improvement. Larger retailers with a multi-year roadmap often choose a dedicated team that stays with the product. Everything runs remotely with written scopes, demos by video call and a shared board. Cost and timing depend on the number of integrations, the size of your catalog, how many states and stores launch first and how complex loyalty and subscriptions are. We hand over documentation and admin training so your team can run daily operations without us.
A defined build with a deadline
We agree what the product has to do, write it down with a price and a date, and build exactly that. Changes are priced before they are made, not discovered on the invoice.
A product that keeps evolving
Named engineers who work your hours, join your standups and stay on the codebase. You direct the backlog; we own the quality of what ships.
Something live that needs looking after
A monthly block of hours for improvements, fixes and the small requests that otherwise wait months. Unused hours carry for a quarter.
Technology
We choose native or cross platform code based on your features, performance needs and the team who will maintain it. We integrate with Shopify, BigCommerce, Salesforce Commerce Cloud, commercetools or a custom backend through their APIs, hosted in your own cloud account.
01Mobile
02Data and cloud
03Marketing and tracking
It depends on integrations, catalog size and rollout scope.
A brand on a modern commerce platform with one warehouse reaches launch much sooner than a chain connecting point of sale, ERP, order management and loyalty systems across several states. We set the timeline after discovery and write it into the scope, usually with a regional launch before the national one. App Store and Google Play reviews add time at the end, so we plan ahead of peak seasons such as Black Friday. Clean product data shortens every later stage, so we check catalog quality in the first weeks of discovery.
Schedule a free consultation and get a written recommendation, with costs, before you commit to anything.
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