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Custom software development services built to fit your business.

We provide custom software development services for businesses building a new product or improving how they operate. We design, build and integrate applications around your workflows, data 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

What our custom software development services include

We design, build and integrate custom applications for customer products and business operations. Discovery gives you a written scope, estimate and phased release plan before you commit to the full build.

  • Application engineeringOne team builds the user interface and the services behind it, coordinating the work across both.
  • Data engineeringPipelines, warehousing and reporting connect the data your application and analytical models use.
  • Project-based deliveryAn agreed scope, defined deliverables and a release plan for the product or workflow you are commissioning.
  • Domain-specific expertiseWe apply delivery experience in fintech, healthcare, logistics and hospitality to the workflows and systems in your scope.
  • Senior in-house engineersOur 100+ senior in-house engineers are unicrew employees. Our QA engineers are ISTQB certified.

02Proof

Custom software supporting long-term operations

Our custom systems support order management, document management and vehicle inspections. In January 2019 unicrew led The Manifest's Top 100 Custom Software Developers list. These engagements show how that work supports operations over time.

  • MiniMoves, a national moving operation, runs on our order platformIt handles inventory selection, pricing and order tracking for the moves the company books. VP of IT Jeff Sides, on Clutch: "double digit growth without a substantial increase in staffing".
    Double digitgrowth, maintained without a substantial increase in staffing
  • WaiverKing has grown on software we have maintained since 2014A document management business serving gyms and studios, on a platform we refactored and have kept releasing for over a decade. CEO Craig Elsdon-Dew credits us with growing the platform "from a couple hundred companies to around 2,000" (verified Clutch review).
    ~2,000companies on the platform, which carried a couple hundred when the engagement started
  • Scale that carries an industryWe built the vehicle-inspection platform that runs paperless inspections for Jack Cooper, one of the biggest US providers of logistics and transportation services. The company has managed inventory and inspections on well over 9 million vehicles.
    9M+vehicles supported, the scale of Jack Cooper's own inventory and inspection operation

03Compare

Custom software, off-the-shelf, or low-code?

Choose custom software when your product or workflow needs capabilities that available tools cannot support well. Our build-or-buy guide explains the cost and ownership considerations.

Custom softwareunicrew Off-the-shelf SaaSBuy Low-code / no-codeConfigure
Best forA differentiated product or workflow that needs control over its features and integrations. Best forAn established workflow that the product's features, configuration and integrations support. Best forA prototype or production workflow that fits the platform's logic, integration and operating capabilities.
What it asks of youSet priorities, fund development and review working software against an agreed scope. What it asks of youCheck product fit, subscription terms, supported APIs and data export before adoption. What it asks of youCheck platform fit, licensing, performance and integration limits before implementation.
You end up owningThe code, roadmap and data, under the ownership and transfer terms agreed before work starts. You end up owningUse of the product and access to your data under its subscription and export terms. You end up owningApplication configuration and data access under the platform's licence and export terms.

Quick self-check

Tick what is true for you. The read-out updates as you go.

0 of 4 true

Build where you compete, buy the rest

A custom build supports the workflows that differentiate your business. Discovery compares your requirements with available tools and identifies where configuration, integration or new software fits.

Talk it through

One signal, one conversation

A single gap may need configuration or one integration. We review that requirement with you before recommending the scope of a custom build.

Talk it through

Worth scoping before you budget

These requirements need to be assessed together. Discovery defines the software and integrations involved, then produces a scope and estimate for your budget decision.

Book a discovery call

Now it is a sequencing question

We use discovery to prioritize the requirements, define the first release and identify what belongs in later phases.

Book a discovery call

Four for four

Your workflow and integration requirements make a custom system worth assessing. Start with discovery to compare the options and agree a phased delivery plan.

Start with discovery

We build custom software where the process is the reason customers choose you, and integrate off-the-shelf tools for the rest. We design each custom system to be cheaper to change in year two than it was to build in year one.

Oleksandr TrofimovChief Technology Officer, unicrew

04Capabilities

Custom applications and systems we build

Our custom software work covers new applications, enterprise platforms and improvements to existing systems. Choose the capability that matches your project for its scope and delivery details.

  • Custom application development

    Customer platforms, portals, dashboards and internal tools, built in React, Next.js, .NET or Laravel, with the services and integrations they need.

  • Custom application development

    Native or cross-platform apps in React Native or Flutter, using a shared backend with your web product to keep application logic consistent.

  • Custom enterprise software development

    Platforms for complex workflows across departments, with architecture, integration and data protection designed around the organization's requirements.

  • Cloud-native modernization

    Re-architect or rebuild an aging system module by module, with the transition planned around the business operations it supports.

  • Cloud infrastructure and CI/CD

    Cloud-native backends, migration and automated build and deployment pipelines (CI/CD). FinOps, the practice of managing cloud usage and spend, connects infrastructure decisions to operating costs.

  • AI-infused custom software

    AI features inside your application, using hosted models or a retrieval layer that supplies relevant data from your systems. We also build agents to your specification.

  • SaaS product engineering

    SaaS products

    MVP to platform

    Discovery, design and engineering in one team, from the first release of a subscription product to the development of its platform.

  • Dedicated development team

    A dedicated senior team working within your process and on your product roadmap, with continuity as the product develops.

05Trust

Client results from custom software development

The CEO of a Nashville software consulting firm reported six out of seven executions on time and on budget. Barrett Values Centre reported the lead time to assemble its team, and Lookgood described bookings on its platform.

  • Six out of sevenProject executions on time and on budgetCounted by the CEO of a Nashville software consulting firm, over engagements of at least six months each
  • 2 weeksLead time to assemble a teamPatrick McGuire, Director IT at Barrett Values Centre
  • 200-300Bookings per vendor each monthPei Shan Wong, Founder of Lookgood, on the appointment booking platform we built

06Stack

Technologies for new and existing systems

We select technologies around your existing systems, data flows and maintenance needs.

FrontendWhat your users touch
BackendServices, APIs, and business logic
CloudWhere it runs, and what it costs

07Engagement

Engagement models and commercial terms

The agreement sets the delivery model, ownership and transfer terms before work starts. Models can change with your needs; ongoing support is scoped separately.

  • Time and materials

    Most common

    Fund an evolving scope under a monthly cap you set. You prioritize the work as requirements develop and review each delivered iteration.

    Best when
    Requirements evolve as users adopt the product
    You pay
    Billed hourly, quoted per project
    Typical start
    Two to four weeks
  • Fixed price

    Defined build

    Commission a defined deliverable at an agreed price. Discovery establishes the scope before we quote, and you sign off the requirements.

    Best when
    Requirements are settled and signed off
    You pay
    Outcome based, quoted per project
    Typical start
    Two to four weeks
  • Engage a named senior team dedicated to your roadmap. You set its priorities, and the team size can change with your needs.

    Best when
    Your roadmap needs ongoing engineering and continuity
    You pay
    Billed monthly, per team member
    Typical start
    Two to four weeks
Taking over an existing system

Technical assessment before a delivery commitment

We assess the existing code, operating costs and areas that need improvement. You receive a written audit and a prioritized plan; commissioning the delivery is a separate decision. For a stalled build, our project rescue service addresses the delivery problems.

08Industries

Industry workflows we support

We build custom systems for logistics, hospitality, fintech, healthcare, e-commerce and education. The scope reflects each sector's workflows, existing platforms and operational requirements.

Logistics and transportation

Order management, warehouse and fleet tools for logistics operations, including a national moving operation and automotive logistics.

Hospitality and leisure

Booking, membership and venue systems planned around seasonal demand, including a platform for the entertainment industry.

Fintech and trading

Payment flows, accounting integrations, and commodity trading (CTRM/ETRM) platforms. We built the commodity trading platform and the accounting integration behind a financial advisory firm.

Healthcare

Monitoring platforms, patient-facing products, and integrations with clinical systems, including a home health monitoring platform we stabilized and scaled.

E-commerce

Storefronts connected to enterprise resource planning (ERP), marketplace and warehouse systems, including a manufacturer selling B2B and B2C across seven European countries.

EdTech and learning

Learning platforms and research tools, including a time-tracking tool built for a university research group's project leaders.

Scope your custom software project

Share the product or workflow you want to develop, your existing systems and what you have already tried. We review the requirements with you and identify what is needed to scope a build, configuration or integration.

Let's talk

What happens after you contact us

  1. We reply within 1 business dayA written reply that says whether this looks like a build, and what is missing before anyone could scope it.
  2. Discuss your requirementsWe discuss your goals, constraints and existing systems.
  3. Review the proposed scopeWe outline the approach, team shape and work involved in writing.
  4. Decide how to proceedReview the written scope and choose the next step on your timeline.

09Delivery

Custom software delivery process

Each stage defines what we deliver and what we need from you.

  1. DiscoveryWe run workshops to analyze your requirements, business goals and technical constraints, then agree the scope and acceptance criteria. You provide the process owners, existing materials such as mockups and sample data, and a decision-maker who can approve the scope.You getA written scope, a detailed estimate, and a phased release plan.
  2. ArchitectureWe design the system around your existing technology and record the reasoning behind the stack choice. You provide access to systems it must integrate with and the contractual, compliance and roadmap constraints that affect the design.You getAn architecture blueprint and a stack decision, with the trade-offs recorded.
  3. Agile developmentWe build in short iterations and present working software for review. You provide representative test data and a person authorized to review each iteration and accept the work against the agreed requirements.You getWorking software at the end of each iteration, reviewed and accepted by your side before it counts as done.
  4. EvolutionWe support, update and scale the software after launch under a separately agreed scope. You provide production access and priorities for the next release. Monitoring and release responsibilities are defined for that support engagement.You getMonitoring, scheduled releases and a current roadmap within the agreed support scope.

10Client voices

Client reviews of our software development work

See our client reviews
5.0 unified ratingacross 61 verified client reviewsRead them on Clutch

11Case studies

Custom software development case studies

Explore how we developed and improved document, booking and moving-company platforms, automated data processing and built research tools.

See all case studies

12Questions

Custom software development questions

Scope, cost, timelines, integration and ongoing maintenance are decisions to settle before commissioning a custom system.

Custom software development means designing and building an application around your business requirements, workflows and data. It can be a customer-facing product, an internal tool or a platform connected to your existing systems.

Discovery compares a custom build with off-the-shelf products and low-code tools. Ownership and transfer terms for the code and roadmap are defined in the agreement before work starts.

Custom software development cost depends on the features, integrations, technology, design and QA your project needs. Discovery produces an estimate and phased release plan before you commit to the full build.

We agree one of three billing models:

  • Time and materials: billed hourly, quoted per project.
  • Fixed price: outcome based, quoted per project.
  • Team extension: billed monthly per team member.

A custom software project's timeline depends on its complexity and scope. Discovery produces the roadmap and timeline estimates for your requirements.

In our delivery experience, an MVP might take a few weeks when development is supported by AI, or 3 to 4 months with a traditional approach, while a complex enterprise system can take over 12 months.

Most engagements start within two to four weeks. There is no minimum engagement period.

unicrew has 100+ senior in-house engineers across six countries company-wide, with the project managers and engineers you work with operating from Ukraine, Poland, Estonia and the UK. We have operated since 2012, originally as Artelogic, the name used in several client reviews here. We have five offices; the US office is a business address in Ormond Beach, Florida.

The CEO of a Nashville software consulting firm said in his Clutch review: "I work with nine different teams. Their team is one of three that I never have to worry about the quality of their deliverables."

Our unified Clutch rating is 5.0 across 61 verified client reviews, as of 31 July 2026.

Yes. We integrate custom software with enterprise resource planning (ERP) and customer relationship management (CRM) systems, payment providers, carrier or supplier APIs and data warehouses. Discovery maps the integrations your application needs.

On an end-to-end platform for a household moving company we integrated four payment gateways and Twilio voice behind one billing interface.

The co-founder of a rental-equipment SaaS said in his Clutch review: "When we agree to a development phase, there aren’t any huge roadblocks that come up because of something we hadn’t anticipated or tested."

We plan maintainability in the architecture and check changes for security vulnerabilities before release. Where independent services fit the system, we use microservices and containers. Docker packages a service with the dependencies it needs to run, supporting updates and scaling.

We embed security checks into automated build and deployment pipelines (CI/CD), a practice called DevSecOps. Our work runs under ISO 27001:2022 and ISO 9001:2015 certifications, renewed through a multi-stage audit with Quay Audit UK. Our QA engineers are ISTQB certified.

Ongoing maintenance and support have an agreed scope, including production access, release priorities and responsibilities.

Both. We build new products and take over existing codebases. An assessment establishes the code's condition and constraints before we agree a delivery plan.

Legacy modernization addresses an aging system's architecture. A takeover begins with a written audit and prioritized plan, with delivery commissioned separately.

An executive at a UK SaaS company described a takeover in a Clutch review: "We’ve made far better progress than we were two years ago with a different team."

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