The tool defines the business.
People copy data, maintain shadow spreadsheets, work around rigid states, and carry important rules in their heads because the packaged model almost fits.
THE WORKAROUND BECOMES THE PROCESSCustom business software
Custom business software built around how you work.
You know the customers, rules, exceptions, and opportunities that generic software misses. Devyou turns that domain knowledge into an owned production system and stays to improve it as the business learns.
$5,000 per month. Month to month. One active milestone. Senior team plus AI. You own everything.BUSINESS KNOWLEDGE IN SYSTEM ONLINE
ACTIVE MILESTONE
One valuable workflow from need to production
Customer experience, business rules, data, permissions, integrations, tests, release, and operating visibility arrive together
YOUCustomers, workflow, and domain judgmentEXPERTISE
DEVYOUProduct, engineering, and productionBUILD
NEXTImprove what real usage revealsQUEUED
+ BUY THE COMMODITY. BUILD THE ADVANTAGE.
What custom business software means
Your operating knowledge becomes a system the business owns.
Custom business software is designed around one organization or a focused market instead of asking the organization to conform to a generic product. It can encode the customer journey, approvals, calculations, exceptions, data relationships, permissions, integrations, and operating controls that make the work valuable.
That does not mean custom-building everything. Microsoft's build-or-buy guidance recommends weighing control, customization, time to market, expertise, total cost, support, and updates. We apply that decision capability by capability, not once for the entire system.
The system reflects how value is created.
Customers, operators, rules, data, and existing services work through one coherent product that can evolve with the business.
WORKFLOWSRULESDATAINTEGRATIONSOPERATIONSOWNERSHIP
MAKE DOMAIN KNOWLEDGE COMPOUNDBuild, buy, connect, or keep human
Custom is a strategic boundary, not a religion.
The strongest system usually combines reliable products with a custom core. We help choose the boundary so engineering effort goes toward the business advantage instead of rebuilding commodity infrastructure.
Buy what already fits
Payments, transactional email, cloud hosting, storage, monitoring, identity, and other common capabilities usually belong with mature providers.
Connect useful systems
Keep the CRM, accounting, commerce, scheduling, or industry tools that work. Integrate them through supported APIs and observable data flows.
Build the differentiator
Own the workflow, rules, customer experience, data model, or operator system that creates a meaningful advantage and cannot be purchased cleanly.
Keep judgment human
Exceptions, sensitive approvals, irreversible actions, and ambiguous decisions need visible context and deliberate human control.
Replace the bottleneck
Custom-build when licenses, manual coordination, disconnected data, or rigid product assumptions materially constrain the business.
Record important decisions
Capture the context, choice, and consequences so the product can evolve without repeatedly reopening settled technical questions.
AWS recommends architectural decision records to preserve the context and consequences of significant choices. We keep decisions lightweight, visible, and connected to the product outcome.
Who this service is for
Small team. Deep knowledge. A system worth owning.
The strongest fit is not defined by employee count. It is a founder, operator, or domain expert who understands a valuable problem and needs an experienced technical team for the long haul.
Your knowledge can become software.
- The business depends on rules or workflows generic tools cannot represent
- Customer or operator experience creates competitive advantage
- Spreadsheets and manual handoffs are limiting growth or reliability
- Important data is fragmented across people and products
- You want to own the system and improve it continuously
Buy or hire differently when the evidence says so.
- A standard product already solves the complete need well
- The project is mainly a website, theme, or simple marketing funnel
- The work needs dozens of developers operating in parallel
- The core deliverable is a mobile game or deeply native consumer app
- Hard real-time, scientific, or safety-critical computing is central
What we build
Customer products and the operating software behind them.
Devyou works across the visible product and the less visible systems needed to deliver, support, measure, and improve it.
Vertical software
Turn specialized industry rules, terminology, customer needs, and operating knowledge into a focused product.
Customer and partner portals
Give customers, vendors, members, franchises, or partners secure access to the right information and actions.
Workflow and operations systems
Replace fragile spreadsheets, forms, inboxes, and status meetings with one clear operating model.
Data and search products
Collect, clean, enrich, connect, search, analyze, and expose valuable proprietary or industry data.
Business automation
Coordinate approvals, notifications, imports, reconciliation, scheduled work, and exception handling across systems.
SaaS and subscription products
Support organizations, permissions, plans, billing, onboarding, support, administration, and the workflow customers pay for.
Dashboards and decision tools
Put the right metrics, context, explanations, and next actions in front of operators and customers.
Existing software improvement
Stabilize critical behavior, improve weak workflows, modernize safely, and add value without rewriting sound code by reflex.
For cross-system approvals, reconciliation, queues, and exception handling, see our dedicated business process automation services.
A practical development process
Start with one valuable outcome, not an imagined final system.
Working software teaches more than a giant specification. We understand enough to make one responsible decision, build the complete production slice, then use customer and operator evidence to select what comes next.
Learn the business
Map the customer, workflow, domain rules, current tools, data, constraints, exceptions, and evidence. Decide what should be bought, connected, built, or left human.
Ship one complete slice
Build the interface together with logic, permissions, data, integrations, administration, tests, monitoring, and deployment needed for a real outcome.
Operate and improve
Release, observe behavior, support users, fix weak points, measure value, and choose the next active milestone from the shared queue.
No exhaustive PRD. No disposable handoff. One private Trello board holds the queue, current milestone, product decisions, progress, and releases.
Production responsibility
The system has to survive the business using it.
A polished happy path is not enough. Custom business software must protect data, explain failures, support operators, and remain changeable after real customers arrive.
Domain model and data
Records, relationships, history, validation, imports, migrations, retention, search, and integrity.
Accounts and permissions
Authentication, organizations, roles, administration, access boundaries, and safe separation.
Integrations and recovery
APIs, webhooks, queues, retries, idempotency, reconciliation, and visible failure handling.
Operator tools
Admin screens, review queues, corrections, exports, support context, and controlled overrides.
Testing and release
Automated coverage for valuable behavior, review of critical changes, deployment, rollback, and verification.
Security and dependency care
Secrets, least privilege, protected environments, dependency updates, vulnerability response, and audit trails.
Monitoring and support
Errors, logs, performance, background work, uptime, business events, and enough context to act.
Backups and continuity
Recovery procedures, data protection, account ownership, documentation, and a system that can be handed over.
NIST's Secure Software Development Framework organizes secure development around preparing the organization, protecting software, producing well-secured releases, and responding to vulnerabilities. We scale those outcomes to the product's actual risks.
Proof from production
We use this model on software we own and operate.
Podseeker and SocialPhotos are not portfolio mockups. They are continuing products with customers, payments, support, data, integrations, infrastructure, incidents, and years of operating history.
podseeker.co
LIVE SAAS / DATA PRODUCT
Podseeker
Millions of podcast records, verified contacts, outreach workflows, subscriptions, team operations, documentation, programmatic SEO, and a public API.
Millions of records10,000s of pitches4.7 / 5 on G2
socialphotosapp.com
LIVE SAAS / SHOPIFY PRODUCT
SocialPhotos
Customer media collection, moderation, product tagging, shoppable galleries, merchant operations, recurring billing, and storefront delivery.
Live since 2014100s requests per second4.9 / 5 on Shopify
How the partnership works
You lead the domain. We lead the software.
You should not need to become a software architect, evaluate every infrastructure service, or supervise AI-generated code. We should not pretend to know your customers better than you do. The product gets stronger when each side brings its real expertise.
The business truth.
Customer problems, vocabulary, existing process, important exceptions, commercial reality, relationships, and the judgment developed through experience.
WHAT IS WORTH SOLVINGThe product and engineering system.
Outcome shaping, interaction design, architecture, implementation, data, security, integrations, testing, deployment, monitoring, and continued production care.
SHAPEBUILDTESTDEPLOYOPERATEIMPROVE
WE ARE IN THE SAME BOATSimple monthly pricing
A continuing senior software team for $5K per month.
The same team stays from the first business decision through production and the next improvement. The flat monthly model keeps incentives on useful progress instead of maximizing billable hours or protecting a fixed scope.
DEVYOU MEMBERSHIP
$5,000/ month
Plus applicable taxes and third-party services. Month to month.
Start your membership ↗✓ One active milestone at a time
✓ Unlimited prioritized request queue
✓ Senior product and engineering leadership
✓ Design, implementation, testing, and deployment
✓ Maintenance and production ownership
✓ Private Trello board and async updates
✓ Unlimited revisions within scope
✓ You own the code, data, and accounts
Hosting, payment processing, email, data providers, app-store fees, and other outside services remain in your accounts. You pay those providers directly. Devyou does not mark them up.
Custom business software FAQ
Questions before building.
What is custom business software?+
Custom business software is an application designed around the customers, workflows, data, rules, and operating needs of one business or a focused market. Unlike a generic tool, it can represent the domain knowledge and process that make the organization different.
Which businesses need custom software?+
Custom software is most useful when a valuable workflow does not fit packaged software, manual work limits growth, important information is fragmented, customers need a differentiated experience, or proprietary data and rules create a business advantage.
Is custom software only for large companies?+
No. A focused business can benefit when the software supports a valuable process and the scope is controlled. Devyou is designed for domain experts, founders, and small teams that need senior engineering without recruiting a full internal department.
Should we build custom software or buy an existing tool?+
Buy a proven tool when the capability is common and the tool fits well. Build when the workflow, data, rules, or customer experience is strategically important and available products force costly compromises. Many good systems combine bought services with a custom application core.
What kinds of custom business software does Devyou build?+
We build customer and partner portals, internal operations systems, workflow applications, vertical SaaS, searchable data products, dashboards, marketplaces, integrations, automation, administration tools, and web-first B2B products with focused mobile companions.
How much does custom business software development cost?+
Devyou costs $5,000 per month, plus applicable taxes and third-party services. The membership is month to month and includes one active milestone, a prioritized request queue, senior product and engineering leadership, implementation, testing, deployment, maintenance, and ongoing production ownership.
How long does it take to build custom business software?+
A narrow production workflow may take two to three months. A focused customer product commonly takes four to eight months. Larger systems grow through additional milestones. We define the smallest complete outcome that can create value, release it, and use real evidence to choose what comes next.
Do we need a complete specification before starting?+
No. We need enough domain context to select a responsible first outcome, not an exhaustive PRD that predicts the entire system. The shared queue holds future ideas while one complete milestone moves through design, engineering, testing, deployment, and verification.
Can custom software integrate with our existing tools?+
Yes. We keep useful systems in place and connect them through APIs, webhooks, imports, scheduled jobs, notifications, and reconciliation. The custom layer should coordinate the business advantage, not recreate every commodity capability.
Who owns the software and data?+
You do. Source code, infrastructure, data, domains, analytics, and third-party accounts remain under your control. You pay outside providers directly, Devyou does not mark them up, and you keep everything already built if the engagement ends.
How does Devyou use AI when building business software?+
We use AI and coding agents to accelerate research, implementation, testing, analysis, and routine changes. Experienced engineers still make product and architecture decisions, protect access and data, review critical behavior, deploy safely, and remain accountable for production.
Can Devyou replace spreadsheets or improve existing software?+
Yes. We can turn fragile spreadsheet, email, and form workflows into an owned application, or improve an existing codebase without rewriting sound parts by reflex. We begin with the customer and operating outcome, then keep, connect, repair, or replace technology based on evidence.
Know the workflow worth improving?
Bring the domain knowledge.
We will build and operate the system.
Subscribe to reserve one of our limited client openings. Within one business day, you will receive a private Trello board and the first questions needed to understand the customers, workflow, rules, systems, data, and most valuable outcome.
Start your membership ↗