Custom Tools

FromcalculatorstoB2Bportals— custom-built tools

Excel isn't enough. Ready-made SaaS doesn't fit. You need something unique for your business. We build dedicated tools that automate processes and increase sales.

See examples
0%

time savings after automation

0 weeks

average MVP implementation time

Problem

Ready-made solutions don't fit

SaaS are generic. Your business is unique. You try to force processes into ready tools instead of building tool for the process.

Excel no longer enough

You start day updating 5 spreadsheets. Formulas break. Collaboration impossible (who has latest version?). This is not scalable system.

Ready SaaS don't fit your process

You pay 200 €/month for tool you use 30%. Missing key features. Workarounds and manual work fill gaps. Frustration grows.

Integrations are expensive and unreliable

You want to connect CRM with warehouse and accounting system. Zapier costs fortune and regularly crashes. Data lost between systems.

You need something unique

Your process is specific. Your clients have unique needs. Ready solutions don't give competitive advantage — anyone can buy them.

Solution

4 categories of tools we build

From simple calculators to complex B2B portals. Everything custom, everything for your needs.

Calculators & Simulators

ROI, quotes, comparing options — tools that sell for you.

  • ROI calculator for your service
  • Real-time pricing
  • Package/variant comparison
  • Lead capture + email with result
  • Conversion tracking

Web applications

From booking systems to CRM — tools tailored to your workflow.

  • Booking & reservations
  • B2B customer portals
  • Mini-CRM for management
  • Integrations (email, payments, API)
  • Mobile-first design

Dashboards & Panels

Metrics, reports, management — everything in one place instead of 5 tools.

  • Real-time KPI dashboard
  • Automatic reports (PDF, email)
  • Team/project management
  • Google Analytics, CRM integration
  • Custom views by role
Pricing

Workshop → Prototype → Implementation

Each tool is individually priced. We start with workshops to understand your process and precisely quote the project.

From workshop to working tool

Collaboration process

Each tool is unique case. We start with deep understanding of your process and business needs.

Freeinitial workshop
Quote after workshops
  • Discovery workshop (1-2h, remote)
  • Business process mapping
  • Bottleneck and needs identification
  • Tool prototype/mockup (for approval)
  • Detailed project quote + timeline
  • Technology and integration proposal
  • MVP build (4-8 weeks) + iterations
  • Hosting + technical support (optional)
Schedule workshop

Workshop is free and without commitment. After workshops you'll receive detailed quote tailored to project scope.

Examples

Tools we've built

From travel apps to B2B portals for hundreds of partners. Each solution tailored to specific needs.

ROP Calculator — Packaging Fees 2026-2028
E-commerce / FMCG / Compliance

ROP Calculator — Packaging Fees 2026-2028

For Polish e-commerce and FMCG companies we created ROP fee calculator (Extended Producer Responsibility). Tool calculates annual packaging costs for 2026-2028, compares materials (cardboard/plastic/glass), shows savings when switching material, and generates PDF report. Pure frontend, zero backend costs.

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Admin panel — Influencer sales management
B2B Automotive / Affiliate

Admin panel — Influencer sales management

Admin dashboard for Mirco managing motorsport influencer affiliate program. Real-time monitoring: revenue (€12,768 total revenue), conversion rate (4.2%), active partners (142 nodes online), top performers (Mike_Drift generated €12k+). Statistics for each influencer: referrals, sales volume, commissions. Live global transaction stream (Berlin, Paris, London, Tokyo). Management: creating discount codes, earnings tracking, payments, per-partner analytics. Everything in one place.

Wieruszów Guide — Interactive city guide
Tourism / Public Sector

Wieruszów Guide — Interactive city guide

Web application for Wieruszów City Hall promoting local tourism. Interactive map with attractions (monuments, restaurants, hotels, tourist trails). Each location has description, photos, opening hours, Google Maps navigation. Category filtering (culture, gastronomy, nature). Mobile PWA version (works offline, can be added to home screen like app). Prepared for developing local tourism in small cities project.

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Process

From idea to working tool

Iterative process. We start with MVP (Minimum Viable Product), then expand.

01

Discovery workshop

We discuss your business process, problems, needs. Identify what tool must do (must-have) vs what would be nice (nice-to-have). Set priorities.

1-2h
02

Prototype/Mockup

We design tool interface (what it will look like, how user will interact with it). Show you mockup/prototype for approval. Iterate if needed.

3-7 days
03

MVP build

We code simplest version that solves your core problem. MVP = works, does most important thing, but without bells & whistles. You test, give feedback, we iterate.

4-8 weeks
04

Iterations & Launch

We expand tool (additional features, integrations, UX improvements). Deploy to production. Teach you how to use. Optionally: hosting + technical support.

2-4 weeks
FAQ

Most common questions

Didn't find an answer? Write: hello@davinci.agency

Let's talk about your tool

Schedule free 30-minute consultation. We'll show examples, answer questions, and quote solution for your business.

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No commitment. Zero spam. We only talk to serious companies.