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Custom web applications

Turn manual work and disconnected systems into software built around your business.

Xstudios develops portals, dashboards, operational systems, APIs and automation workflows that remove repetitive steps, connect data and give your team a clearer way to run the process.

CRM / ERP-stylePortalsCMSBillingAPIsAutomation
Business systems

Build the application around the work your team actually performs.

CRM, ERP, CMS, invoicing and administration are useful labels, but the real value comes from modelling your workflow, data ownership, roles and exceptions correctly. We start there, then build only the screens and automation the process needs.

CRM & customer operations

Lead, customer, account and service workflows adapted to the sales or relationship model.

  • Customer profiles
  • Pipeline/workflow states
  • Activity and communication context

ERP-style operations

Purpose-built operational workflows for projects, resources, tasks, approvals or domain-specific processes.

  • Operational states
  • Role-based actions
  • Dashboards and reporting

CMS & publishing

Structured content systems for websites, portals, knowledge or internal publishing needs.

  • Content models
  • Editorial workflows
  • Permissions and revisions

Billing & administration

Invoicing, documents, approvals and admin workflows integrated with the systems already in use.

  • Document generation
  • Status workflows
  • External integrations

Portals & self-service

Customer, partner, employee or supplier surfaces that expose the right actions and information to each role.

  • Role-based access
  • Self-service flows
  • Secure data boundaries

Dashboards & decision support

Operational views that combine the data needed to act, rather than simply reproducing database tables.

  • Actionable KPIs
  • Exceptions and queues
  • Drill-down context
Automation

Move information forward without losing control.

Automation can handle predictable rules and repetitive handoffs, while AI can assist with tasks such as classification, extraction, summarization or drafting. We design approval points, permissions and auditability around the business risk so faster work does not mean less control.

  • Form, email, document and API intake
  • Routing, validation and state transitions
  • Notifications and communication workflows
  • AI-assisted context extraction or drafting where useful
  • Human approval and audit for sensitive actions
Connected workflow and automation concept
Architecture

Connect the systems you already depend on. Do not create another silo.

A useful application rarely works alone. We design API boundaries, identity, synchronization, error handling and sources of truth so the new software fits the wider operating environment instead of creating another disconnected database.

APIs & integrations

REST/API clients, webhooks, imports and controlled synchronization with third-party systems.

Identity & permissions

Define who can act, in which organization/context, and what data or actions each role can reach.

Data ownership

Explicit sources of truth, lifecycle rules and safe handling of synchronization failures.

Deployment & runtime

Plan environments, configuration, secrets, backups and monitoring with the application architecture.

Testing & evidence

Protect important flows with automated or repeatable checks before changes reach production.

Documentation & handover

Record key decisions, integration contracts and operational steps so the system remains supportable.

Custom, XTND or hybrid?

The best code is sometimes the code you do not have to rebuild.

XTND can provide reusable platform capabilities for connected workflows, content, identity, automation and multi-client/operator scenarios. We evaluate it when those capabilities match the problem; we keep custom implementation where the business needs a differentiated workflow or experience.

01

Custom-first

Purpose-built application and integrations when the workflow is unique or ownership/control requirements favor a dedicated system.

Discuss custom software
02

XTND-first

Configure and extend reusable platform modules when they already map well to the operating model.

Build with XTND
03

Hybrid

Use a custom front end or domain workflow while reusing XTND for shared platform concerns underneath.

Plan a hybrid architecture
Delivery

Software should leave a trail of clear decisions and verifiable behavior.

We prefer phased implementation with explicit scope boundaries, testable acceptance criteria and evidence around risky changes instead of a long “big bang” build.

01 · MODEL

Workflow & roles

Map actors, states, inputs, outputs, permissions and business rules.

02 · PROVE

Critical path

Validate the riskiest integration or workflow before expanding the build.

03 · BUILD

Iterative delivery

Add features in controlled slices with regression protection and review.

04 · OPERATE

Production ownership

Document deployment, monitoring, backups and ongoing change responsibility.

Application delivery scope

Build around the workflow, not around a generic software category.

Custom software is most valuable when it removes repeated work, connects information and gives the right people a clearer operating surface. We can deliver a focused internal tool, a customer portal or a larger business application in controlled phases.

Workflow & requirement mapping

Translate real operating steps, exceptions, roles and data ownership into a delivery scope the team can validate.

Plan the application

Architecture & data boundaries

Define services, databases, APIs, sources of truth and integration boundaries so the application can evolve without hidden coupling.

Architecture review

Identity, permissions & tenant context

Design authentication, roles, permissions and data boundaries for internal teams, customers, partners or multi-client scenarios.

Discuss access model

Integrations & event flows

Connect external services and existing systems using APIs, webhooks, scheduled synchronization or controlled import/export flows.

Integration work

Automation & AI-assisted steps

Combine deterministic automation with AI-assisted classification, drafting, extraction or decision support where human control and context are explicit.

Automation options

Testing, rollout & modernization

Protect important behavior, phase releases, migrate data carefully and modernize inherited code without turning every improvement into a rewrite.

Modernization options
Pricing & engagement

Start small where possible. Scale the budget with the application.

Custom software can range from a focused integration to a multi-phase operational platform. The entry engagements below make it possible to validate scope and risk before committing to a larger build.

Discovery

Technical Health Check

€500–€1k

Review an existing application, architecture or workflow and turn the problem into a practical implementation roadmap.

  • Architecture / workflow review
  • Risk and dependency map
  • Recommended next phase
Start with a technical review
Focused delivery

Application Sprint

€1.5k–€3.5k

For one important feature, integration, automation or contained modernization problem that can be delivered as a focused engagement.

  • Defined feature or problem
  • Implementation and testing
  • Handover / documentation
Plan an application sprint
Ongoing engineering

Technical Partner

Custom / monthly

For products that need recurring development capacity, architecture decisions, integrations, maintenance and a managed backlog.

  • Reserved capacity
  • Continuous delivery
  • Long-term technical ownership
Discuss ongoing engineering
These are indicative ranges, not fixed packages. Final scope and price depend on requirements. Larger projects are scoped individually and can be split into defined delivery phases.
Connected delivery

Custom software works better when the surrounding services are planned with it.

Applications normally intersect identity, APIs, data, automation, hosting and ongoing support. Xstudios can custom-build the differentiating workflow while reusing XTND platform capabilities where that is the faster and more maintainable choice.

Architecture & consulting

Define the right scope, data boundaries and modernization plan before committing the build.

Consulting

Web & customer experience

Create public websites, portals and customer-facing interfaces around the application.

Web design

XTND platform

Reuse connected modules for business domains, content, identity, automation, productization and operator scenarios.

Visit XTND

XTND AI & automation

Use contextual AI, Smart Relay and automation capabilities where the workflow benefits from governed platform-level execution.

XTND AI

Hosting-Shop

Coordinate runtime requirements with Cloud Hosting or other Hosting-Shop services when appropriate.

Cloud Hosting

Ongoing engineering

Maintain, monitor, modernize and extend the application after the initial delivery.

Ongoing support
One project, clear ownership. Xstudios can remain the main delivery contact while XTND contributes reusable platform capabilities and Hosting-Shop provides hosting infrastructure where either is a good fit.
FAQ

Questions worth answering before kickoff.

Examples include customer/CRM workflows, ERP-style operations, CMS, invoicing/admin tools, portals, dashboards, communications, integrations and domain-specific business systems.

Yes. Integration is often the better option. We first clarify data ownership and the API/export capabilities of the existing systems.

No. Many high-value automations are deterministic workflows. AI is useful when the task involves language, unstructured documents, classification or generation and when quality can be governed appropriately.

Potentially. If a recurring configuration pattern emerges, XTND Product Studio/operator capabilities may be relevant. We would evaluate that separately from the first client-specific implementation.
Next step

Have a workflow that is still held together by email and spreadsheets?

Describe the people involved, the information moving between them and the points where work stalls or gets duplicated. That is usually enough to identify an automation or application opportunity.