Custom web applications

A B2B portal or internal SaaS solution tailored to your processes. Implemented in 8 weeks.

Warehouse management, HR, Customer Relationship Management, Configure, Price, Quote, logsstics, dealer portal, admin panel, custom internal tools—anywhere off-the-shelf SaaS doesn’t support your processes. A 5-step implementation process with a 30/30/30/10 payment schedule.

See how we build Schedule a call
8 weeks From planning to launch
3 hours → 4 minutes Valuation period at Akpil
12,000 devices connected at KG Electronics

Four signs that off-the-shelf SaaS is no longer enough

If you recognize at least two of these—it makes sense to discuss a custom application.

01

A company's critical data lives in spreadsheets

The company's operations are managed using spreadsheets. Each department maintains its own file, there is no audit trail, customers ask about the status, and no one knows which file is up to date.

02

You're only using 5% of the SaaS solution, and it's missing that one feature

You pay monthly for modules that no one uses. The feature you bought the system for isn't covered. Customizing an off-the-shelf tool costs more than building an app tailored to your process.

03

Departments do not share data or communicate via email

Each department has its own system or spreadsheet. The data is excerpted, decisions are based on a narrow view of reality, and in the meantime, the customer is waiting.

04

You scale by hiring, not by automating

Processes are in employees' heads, not in the system. Every new hire requires two weeks of training on "how we do things." When an auditor asks for evidence of decisions, you show them emails.

Five implementation phases. 30/30/30/10 timeline.

A clickable prototype in a test environment before we write a single line of production code. Payment in four installments.

1

Week 1

Exploration

Sales process map. List of integrations. Decisions on what the MVP includes and what it doesn't. Result: a document outlining the scope and priorities. Deposit: 30%.

2

Weeks 2–3

UX/UI Design

A clickable prototype in a test environment. Every screen, every workflow, and every unusual spricerio for validation by your sales team.

3

End of Week 3

Project approval

You approve the prototype. We won't start building the MVPithout your approval. Upon approval: another 30%.

4

Weeks 4–7

Building an MVP

Weekly iterations in the test environment. Demos on Fridays. Integration with the systems you already have. After the MVP release: another 30%.

5

Week 8

Launch + team rollout

Production launch. Documentation. Training for sales representatives and administrators. After implementation: last 10%.

What exactly is changing at your company?

One database for the entire company

Warehouse, HR, sales, production, logsstics—every department sees the Same data. Make a change in one place, and it updates everywhere. No need to copy and paste from one spreadsheet to another.

Processes in the system, not in people's heads

Business rules (discounts, approvals, escalations, inventory alerts) are programmed once. A new employee simply clicks on a spricerio; they don’t have to spend two weeks learning “how we do things.” An auditor can see the decision trail in the log.

Real-time reporting

Inventory levels, sales KPIs, vacation schedules, project statuses, vehicle availability—all from today. Management makes decisions based on real-time operational data, not on a spreadsheet from two weeks ago.

Integration with the systems you already have

Polish ERP systems (Comarch, Optima, Asseco), traditional Customer Relationship Management platforms (Pipedrive, HubSpot, Salesforce), and industry-specific tools. The client-specific dashboard integrates with your existing infrastructure and does not require migration.

Implemented and operational

Every client is involved in production. Full case studies are available for review.

Akpil · Manufacturer of agricultural machinery

3 hours → 4 minutes

B2B panel with a Configure, Price, Quote module for export sales

A custom sales portal with a configuration and quoting module (Configure, Price, Quote) for 8 sales representatives handling 150 inquiries per week. The end customer configures the machine in a web browser, and the sales representative receives a ready-to-process order. The time required to quote a standard inquiry has dropped from 3 hours to 4 minutes.

View the full case study

KG Electronics · Manufacturer of HVAC electronics

12,000 devices

Administrative panel for an HVAC electronics manufacturer

A web-based administration panel for a manufacturer of gas boiler controllers. 12,000 devices connected at end-user locations. End users control their boilers via a mobile app, while the manufacturer manages reporting, telemetry, and status updates through the web panel.

View the full case study

See also live at our clients' sites: configure.akpil.pl · configurator.kNoja.com.pl · or all case studies in one place: jsoncrew.com/case-studies/

When to develop a custom app, and when to use a ready-made system

Two paths, two different company profiles.

Choose a ready-made system

  • Standard process — SAP, Pipedrive, BambooHR, Asana, Jira, and Trello are suitable
  • Our ready-made templates are tailored to your industry and specific needs
  • The built-in integrations are sufficient
  • A team of fewer than 20 people; a small-scale operation

Select an app for the client

  • Custom process — custom pricing algorithm, discount rules, approval workflow
  • A Polish ERP system (Comarch, Optima, Asseco) or a legacy system to integrate
  • Modules not included in the standard SaaS offering — Configure, Price, Quote, dealer portal, admin panel, custom WMS
  • Scaling plan for the next 2–3 years; process ownership is mandatory

Custom applications are only developed when no off-the-shelf system is suitable.

Before you schedule an interview

What happens after implementation, and who we are.

After implementation

Maintenance packages

  • Launch Care 1,19PLN 0/month WP/stack maintenance, backups, monitoring, 1 hour of dev/mc work
  • Growth Circle 2,39PLN 0/month Launch Care + 2×2 hours of consulting per month + Slack + weekly workshops
  • Partner Lab from 4,19PLN 0/month Growth Circle + reserved dev work block + higher SLAs

Optional packages. We will discuss the details during a meeting after implementation.

30 seconds on JSON Crew

Who We Are

2024year of establishment
3founders
4Live case studies

A software company specializing in digital transformation for B2B sales. Product configurators, dashboards, and sales process automation. Three key case studies (Akpil, Forest, and the internal JSON Hub platform) and portfolio implementations (KG Electronics, Metal Roofing, a heat recovery center, and modular homes).

Meet the team · 15-minute diagnosis

Frequently Asked Questions

How much does it cost?

Custom B2B package — individual pricing following the initial discovery phase. Fixed price once the scope is defined; payment schedule: 30/30/30/10: 30% upfront, 30% upon approval of the UX/UI design, 30% upon release of the MVP, and 10% upon production deployment.

What kind of web applications do you build?

B2B dashboards (sales, dealer, and customer), internal SaaS solutions for teams, and business modules not found in off-the-shelf systems: Configure, Price, Quote, inventory management, HR, logsstics, service portal, admin panel, and dashboards for end customers. Anything web-based and tailored to a specific business process.

How long does the implementation yese?

MVPithin 8 weeks of signing the contract. First working version on the test environment after 3 weeks. Larger projects involving deep integrations or multi-tenant setups — 12–16 weeks; we define the scope after the initial discovery phase.

Do you integrate with our Comarch / Asseco / SAP / existing SaaS?

Yes. Polish ERP systems (Comarch ERP XL, Optima, Asseco), international systems (SAP, MS Dynamics) and classic SaaS (Pipedrive, HubSpot, Salesforce, Asana, Jira) are standard. For non-standard integrations - separate subpage: ERP/Customer Relationship Management Integrations.

Do you build panels for end customers (multi-tenant)?

Yes. Multi-tenant SaaS, end customer portal, dealer panel with separate accounts and permissions - to the extent. We establish a modular architecture (separate data instances, white-label for the client's brand) in the first stage of discovery.

What about maintenance after implementation?

We have Launch Care and Growth Circle maintenance packages - technical maintenance, weekly consulting, customer community. Optional packages. We discuss the details during the conversation after implementation.

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