Web Application Development Services for browser products built around your workflows.
We provide custom web application development services for the browser software your customers and staff use. We build its frontend, backend and integrations around your workflows and existing systems.
- 120+Projects delivered across 12 countries since 2012
- 100+Senior in-house engineers, six countries
- 5.0Unified rating across 61 client reviews on Clutch
- ISTQBISTQB-certified QA engineers
- ISO 27001Certified security practice, audited by Quay Audit UK
01Overview
Browser applications and the systems behind them
We scope browser applications around the work users need to complete and the systems they need to connect to. Discovery produces an integration map, a written stack recommendation and a sprint plan for the build.
- One team from browser to databaseWe develop the frontend, backend and their integrations together, coordinating the interface with the services behind it.
- Integration scopeThe systems, APIs and data flows the application depends on define its integration work and inform the estimate.
- Built to your specificationYour workflows and required load, accessibility and security shape the application requirements.
- The rest of the engineering clusterFor the broader build decision, see custom software; for agency delivery under your brand, see white-label web development. Choose Mobile for installed apps, modernization for existing systems, or integration for the layer between systems.
02Proof
Web builds for growth, accessibility and integration
The browser interface and the systems behind it need to support the same workflow.
- Sterling Test Prep: a growing customer platformWe developed PHP features and payment processing for the Sterling Test Prep platform. Its COO reported the result on Clutch: "They greatly improved our customer experience."3people on the test-prep build: a project manager, a developer, and a QA engineer
- Four sites, and a compliance bar the client setWe built four corporate websites for a German financial-services group with accessibility implementation in scope. Senior UI/UX Designer Tanja Stuchels described the objectives on Clutch: "Our primary objectives were to ensure full accessibility compliance, modernize the UX, and create a consistent, high-quality digital presence across all sites." Her result: "All four websites have successfully passed internal reviews and are online. The accessibility scores are top-notch, and the user engagement is higher."4corporate websites held to the same accessibility bar, all four live
- Bitergo: Angular frontends connected through RESTWe implemented Angular components and whole user frontends for Bitergo, completed backend integration via REST and supported technical SEO. Managing Director Andreas Trautmann reported the site result on Clutch: "After launching the site we saw a rapid increase of test accounts ordered by potential customers. Now the site provides a steady source of sales leads."15+applications in the warehouse app store whose front end we rebuilt on one shared component set
03Compare
Custom web app, website builder, or SaaS?
Choose the route that supports your browser workflows, integrations and operating requirements, with ownership and licensing terms that fit your plans.
| A custom web applicationunicrew | Website builder or CMSTemplate | Off-the-shelf SaaSBuy |
|---|---|---|
| Best forA browser product or internal platform whose workflows and integrations need a tailored implementation. | Best forA site or application whose content, workflows and integrations fit the platform and its extensions. | Best forAn established workflow supported by the product's features, configuration and APIs. |
| Works best withAgreed requirements, development funding and a product owner who reviews the delivered application. | Works best withA review of supported logic, integrations, performance and the maintenance needs of any extensions. | Works best withProduct fit, subscription terms and data-export arrangements agreed before adoption. |
| You end up owningThe code, roadmap and data under the ownership terms agreed for the build. | You end up owningYour content and configured site, subject to platform, theme and plugin licences. | You end up owningRights to use the product and access or export your data under its contract. |
Quick self-check
Tick what is true for you. The read-out updates as you go.
0 of 4 true
0 of 4 true: define the browser requirement
Start with the work people need to complete in the browser. We assess whether the project needs a custom application, a platform configuration or an integration. For installed apps, choose mobile app development.
Talk it through1 of 4 true: assess a focused change
A focused requirement may be met by a plugin, one integration or a hosting change. We review that requirement with you to establish the web development scope.
Talk it through2 of 4 true: scope the requirements together
We assess these combined requirements against the existing application so you can review the build scope, budget and release sequence.
Book a discovery call3 of 4 true: choose a delivery sequence
A new web build and an application modernized module by module offer different delivery paths. We scope the transition around the workflows your current system supports.
Book a discovery call4 of 4 true: agree the operating requirements
Your browser workflows, integration needs and operating requirements belong in one application scope. Discovery gives you the basis for reviewing the architecture and delivery options.
Talk about the buildOn a web application, the bar for concurrent load, accessibility and security decides the architecture. We write it into the scope before a stack is chosen. In our experience, the builds that age well start from that written bar.
Oleksandr TrofimovChief Technology Officer, unicrew04Capabilities
What we build
We build browser applications and improve existing products, from booking workflows and internal tools to integrated storefronts.
- Custom web application development
Custom web applications
Frontend, backend, integrationsCustomer-facing products with the frontend, backend and integrations they need. Our salon booking application combines real-time availability, SMS reminders and scheduling that respects shared equipment.
- Frontend development services
Frontend engineering
Angular, React, Vue, Next.jsAngular, React, Vue and Next.js with TypeScript. We used Storybook to build shared components for a suite of more than fifteen applications, reusing them across the application interfaces.
- Backend and API development
API-driven backends and integrations
.NET, Node.js, LaravelBackends in .NET, Node.js or PHP/Laravel, with APIs and middleware that translate data between systems. One re-platforming onto Shopify connected the storefronts to Microsoft Dynamics ERP through a custom middleware application.
- Web portal development
Web portals and internal tools
A screen for a system that had noneBrowser interfaces for operational systems. Our work includes a web GUI for a previously API-only platform and recipe-knowledge and electronic data interchange (EDI) tools for internal knowledge management and customer orders.
- Ecommerce web development
Ecommerce and B2B storefronts
B2B and B2CB2B and B2C storefronts connected to product, stock and order systems. Our engineers joined a European manufacturer's IT team on the custom middleware connecting its Shopify shops to Microsoft Dynamics ERP as it replatformed from WordPress.
- Accessible website development
Accessible corporate platforms
A requirement, not a checklistCorporate websites built to the accessibility requirements set by a regulator, tender or customer contract. Our four corporate websites for a financial-services group included accessibility implementation alongside frontend, backend, responsive layout and analytics work.
- Web application testing and QA
QA inside the build
Automation, load, stressOur QA engineers are ISTQB-certified. One ecommerce re-platforming included Quality Automation Test, Load Test and Stress Test work, plus a test plan and test cases for the client's QA process. Web-build testing activities are agreed in scope.
- Web application modernization
Modernization of existing web apps
Incremental, not a rewriteWe modernize existing web frontends and backends incrementally, planning the transition around ongoing product development.
05Stack
Technologies we build with
We recommend a web stack that fits your product, your team and your hiring market. Discovery records the trade-offs so you can review the choice.
React
Next.js
Angular
Vue
Nuxt
TypeScript
Storybook
Node.js
.NET
Laravel
PHP
MySQL
Redis
AWS
Shopify06Engagement
Engagement models for your web application
An in-house team suits a continuing roadmap built on deep product knowledge. We support that roadmap through team extension, or deliver a defined web build under the commercial models below.
Time and materials
Plan changes with the productDevelop an evolving web application under a monthly ceiling you set, with priorities adjusted as requirements and user feedback develop.
- Best when
- You expect the product to move once it is live
- You pay
- Billed hourly, quoted per project
- Typical start
- Two to four weeks
Fixed price
Defined buildCommission one defined deliverable at an agreed price. Scoping establishes the application and integration requirements for the quote.
- Best when
- The application scope and acceptance requirements are settled
- You pay
- Outcome based, quoted per project
- Typical start
- Two to four weeks
Team extension
Long-runNamed engineers work within your product roadmap, alongside your existing team. We agree the continuing work and the engineering roles it needs.
- Best when
- Your web product needs continuing engineering and product knowledge
- You pay
- Billed monthly, per team member
- Typical start
- Two to four weeks
Assess the existing application before commissioning changes
We review the application, operating costs and dependencies past end of life, then provide a written assessment with a ranked improvement plan. You decide separately who delivers that work. There is no minimum engagement period. For a stalled build, our project rescue service addresses the delivery problems.
07Industries
Industries we build web applications for
We build web applications for sector-specific workflows, from warehouse operations and booking to learning and patient-facing services.
Logistics and transportation
Order platforms and warehouse management software connected to operational systems. For a warehouse app store, we implemented Angular frontends and REST backend integration.
Hospitality and leisure
Booking and distribution interfaces for venue operators and hotel-content services. Our work includes a venue platform and a web GUI over an API-only hotel-content application.
E-commerce and retail
B2B and B2C storefronts connected to ERP and marketplace systems. One re-platforming off WordPress connected Shopify shops to Microsoft Dynamics ERP, including product, stock, order and logistics flows.
Financial services
Corporate websites built to defined accessibility requirements. For a German financial-services group, the work covered four corporate websites with accessibility compliance, modernized UX and a consistent digital presence as the client objectives.
EdTech and learning
Browser tools for universities and publishers, including a research-group time-tracking application and a growing test-prep platform.
Healthcare
Patient-facing browser products connected to clinical systems. Our work on a home health monitoring platform included system stabilization, UI/UX redesign and new data integrations, using .NET and React.
Scope your web application project
Share the browser workflows you want to develop, the systems involved and a URL if an application exists. We review those requirements with you to establish the scope of the web build.
What happens after you contact us
- We reply within one business daySend the application URL or a description of the browser product you want to build.
- A call about what the application has to doWho uses it, which systems it has to talk to, and the bar it has to clear: concurrent load, accessibility, security.
- A written scope: the stack decision and the integration mapA sprint plan with real dates, the stack recommendation with its trade-offs in writing, and every integration we found, flagging the ones whose APIs we do not control.
- Contracts, then access on your termsOn a build engagement, access is least-privilege and agreed with your technical contact, read-only wherever the work allows, with no write access to production systems during discovery. Rescue and maintenance access are scoped separately. Most engagements start within two to four weeks.
08Delivery
Web application delivery and handover
We develop the browser interface and API contract into a tested application, then hand over the software and operating access. Ongoing support has an agreed scope.
- Scope the applicationWe define the application requirements, users and integration work. You provide the process owners, the systems it must connect to and the required concurrent load, accessibility and security.You getA sprint plan with dates, a written stack decision with its trade-offs, and an integration map.
- Design the interface and the API contractWe develop wireframes and a UI kit where needed, plus the API contract defining what the frontend and backend exchange. You provide the people authorized to approve the interface and agree the integration requirements for connected systems.You getA UI kit of typography, tokens, components and interaction states, plus the agreed API contract.
- Build in sprints, QA insideWe build working application increments and test them with ISTQB-certified QA engineers. You review the software each sprint and accept it against the agreed requirements.You getA tested, deployable increment every sprint, in an environment you can open yourself.
- Launch and hand overPerformance, accessibility and technical SEO are handled before go-live. You provide production access, DNS control and the person authorized to approve cutover.You getThe live application, documentation, the continuous integration (CI) setup and the access needed to run it.
- Run and improveWe support the application under an agreed scope, or hand operations to your team. You name an owner for alerts and the roadmap, and set priorities for continued development.You getMonitoring, dependency updates and application improvements within the agreed support scope.
09Client voices
What clients say on Clutch
Shippable and well received web GUI for previously API only application. The whole team is highly dedicated to the success of the project and delivers the planned artefacts on time. We are very happy to have chosen Artelogic.
They built the product from start to finish. I appreciated how they thought through the process as well as the input from the business side. It’s not a situation where I tell them to code and they code it. They always give advice on what may come in the future. I’m very satisfied with their project management.
Artelogic invested time to understand our needs and has subsequently proposed appropriate solutions. In the end, the team’s quality deliverables have created value for cost. The EDI tool generates significant daily revenue and helps us solve order collection issues.
Artelogic anticipates our needs and meets them before we even identify them. My team lead wants to keep both of Artelogic’s developers on the project until the product’s release. We have a backlog of 40 big projects, so I only see Artelogic’s involvement increasing.
10Case studies
Our case studies
Explore our booking, research time-tracking and venue-platform work. Older client reviews above use Artelogic, the name unicrew traded under before the rebrand.
See all case studies- HospitalityA salon platform handling 200-300 bookings per vendor a month (Lookgood)unicrew built Lookgood's salon booking platform from start to finish, with real-time availability, SMS reminders, and scheduling that respects shared equipment.200-300Bookings per vendor each month
- EducationThe custom time-tracking tool that got around 40% more project leaders tracking time at RWTH Aachen Universityunicrew built a custom time-tracking web app for a research group at RWTH Aachen University, in place of spreadsheets or off-the-shelf software.~40%More project leaders tracking time
HospitalityAdaptable booking platform for entertainment venuesunicrew developed a platform for Booked It that enhanced the customer experience for nightclub, entertainment center, and festival goers.600+Businesses using the platform
11Questions
Web development questions
Scope, cost, integrations and support are decisions to settle when commissioning a browser application.
We build customer-facing product platforms, internal tools, ecommerce storefronts and corporate websites, with the backends and APIs they need.
Our work includes:
- Warehouse application frontends connected through REST.
- Four corporate websites built to a financial-services group's accessibility requirements.
- A research-group time-tracking application.
- A web GUI over an API-only platform.
For an existing application that needs rebuilding, legacy modernization defines the transition scope.
We quote a custom web application after defining its scope.
The estimate covers:
- The screens and workflows the application needs.
- The systems and APIs it must integrate with.
- Interface design, including a design system where one is needed.
- The required concurrent load, accessibility and security.
Time and materials is billed hourly, quoted per project. Fixed price is outcome based, quoted per project. Team extension is billed monthly per team member.
The development timeline depends on the application scope, integrations and the decisions needed from your team.
Scoping produces a sprint plan with dates. You review working software during sprint delivery. For a milestone-based contract, we agree the delivery milestones; for a hard deadline, we agree which requirements belong in that release.
Yes. We build web applications that integrate with existing systems through their APIs and agreed data flows.
Scoping produces an integration map that identifies connected systems and dependencies on APIs we do not control. Those dependencies inform the scope and delivery plan.
One re-platforming onto Shopify connected storefronts, an AWS product information management system and Microsoft Dynamics ERP. Our warehouse app store work included frontend integration with the backend over REST.
We recommend a stack that fits your product, your team and your hiring market, with the trade-offs recorded in writing during scoping.
Our frontend work covers React, Next.js, Vue, Nuxt and Angular with TypeScript. Backend options include .NET, PHP/Laravel and Node.js.
A suite of more than fifteen applications used Angular with Storybook to share components. A venue platform used Laravel and React, refactoring a legacy system that had no framework.
Accessibility and performance are part of the agreed web application requirements, alongside security and concurrent load.
You provide the bar set by a regulator, tender or customer contract. Where a formal conformance level against a named standard is required, the site owner makes that statement about its sites; we build to the level it names.
For four corporate websites for a financial-services group, full accessibility compliance was a client objective and accessibility implementation was included in the build scope. Performance, accessibility and technical SEO are handled before go-live.
You own the code and roadmap under the ownership and handover terms agreed for the build.
We hand over the documentation, continuous integration (CI) setup and access needed to run the application. If you want continued development, monitoring, fixes and dependency updates, we agree that support scope with you. Bought separately, this is software maintenance and support.
On fixed-scope work a post-launch warranty period is standard, with the length agreed per contract.
Compare web development partners on relevant applications, proposed delivery responsibilities and the ownership and support terms.
Review a live application on a phone, with a keyboard and on a constrained connection. Our case studies and linked Clutch reviews describe the work and its results.
unicrew has 100+ senior in-house engineers across six countries company-wide; the project managers and engineers you work with are based in Ukraine, Poland, Estonia and the UK. We are ISO 27001:2022 and ISO 9001:2015 certified, renewed through a multi-stage audit with Quay Audit UK.
Our web development service works directly with you as unicrew; white-label web development delivers the engineering under your brand.
White-label fits agencies, studios and software companies delivering web applications to their clients. The distinction is the client relationship and whose brand appears on the work.