Programmable Calculator Platform

Your domain experts
ship tools in hours,
not sprints.

KonstrukThor turns a plain-language description into a live, embeddable decision tool — sandboxed Python logic, auto-generated UI, one line of embed code. No ticket. No backlog.

10–50× Faster than dev cycle
0 Dev tickets needed
1 line To embed anywhere
Powered by
Kotlin + Micronaut PostgreSQL Sandboxed Python RabbitMQ Claude AI iframe + postMessage Google OAuth2 Docker

From idea to live tool
before the sprint starts.

Traditional

Classic Dev Cycle

2–5 days
Scoping & estimation
3–10 days
Backlog & sprint planning
5–15 days
Development (20–60 hrs)
3–7 days
Code review & QA
1–5 days
Deploy to production
Total 3–6 weeks
KonstrukThor

AI-Assisted Workflow

5–10 min
Describe calculator to AI
Skipped
No ticket, no backlog
5–15 min
AI generates logic + tests
15–45 min
Expert tests & adjusts
5 min
Publish → copy iframe
Total 30–120 min

Everything your team needs.
Nothing they don't.

🤖

AI Calculator Generation

Describe your calculator in plain language. The AI agent generates inputs, outputs, computation logic, and test cases — then runs them itself and self-corrects until they pass. The expert reviews, not builds.

🔒

Sandboxed Python Execution

Isolated Docker container per execution. Hard CPU, time, and memory limits. Network disabled. Restricted imports. Deterministic and safe — even for untrusted scripts.

📦

One-Line Embed

One line of HTML and the calculator is live on any page — e-shop, CMS, internal portal. The widget auto-generates from the calculator definition. No additional frontend work.

🔗

postMessage API

Pre-fill fields from the parent page. Deep integration with product configurators, CRM tools, or any surrounding application. Results flow back for add-to-cart or CRM population flows.

Test Case Framework

Every calculator has a test suite. Specify inputs and expected outputs with configurable tolerance. The AI generation loop tests automatically — it generates, tests, self-corrects.

📊

Built-in Analytics

Total executions, daily/monthly run counts with sparkline trends, error rates, and execution time distributions. No separate analytics setup needed.

🎨

Frontend Customization

Three independent customization slots — CSS for styling, HTML for restructuring, JS for behavior — let you match any brand or interaction pattern without limits.

🏢

Organizations & Teams

Full multi-tenant isolation. Organizations keep company data separate. Teams provide isolated workspaces with configurable deletion policies, role-based access, and email invitation flows.

Pays for itself on
the first calculator.

A single mid-complexity calculator built by an agency or internal dev team costs 25,000–50,000 Kč. Your in-house developer costs 60,000–80,000 Kč per month.

The Standard tier at 12,000–16,000 Kč/month pays for itself on the first calculator of the year — and every subsequent one costs the domain expert an afternoon.

One calculator — traditional dev
25 – 50 000 Kč
Per calculator via agency or internal developer
Developer FTE
60 – 80 000 Kč/mo
Junior/mid developer monthly cost
KonstrukThor Standard
12 – 16 000 Kč/mo
Unlimited calculators, hosting + support included

Built for every team that
knows what they need.

E-commerce

Conversion Calculators

Place a sizing or consumption calculator directly on a product page. Customer enters parameters, gets a precise recommendation, clicks Add to Cart. Results communicated via postMessage.

Example: "How many boxes of tiles do I need?" → exact qty → add to basket
Lead Generation

Qualified Lead Capture

A calculator delivers real value upfront — ROI, savings estimate, payback period — then naturally leads to a contact form. The result is a qualified lead with full context.

Example: Heat pump ROI → annual savings → "Get report" → email lead
Content Marketing

Interactive Content

Embed a calculator inside a blog post, buyer's guide, or landing page. Readers who engage with interactive tools convert at significantly higher rates.

Example: "Home insulation guide" + inline heating savings calculator
Internal Tools

Field & Ops Tools

Sales reps, project designers, and technicians get tailored calculation tools without waiting for IT. Quoting tools, dimensioning aids, cost estimators — built by the people who use them.

Example: Field sales quoting tool → built by sales lead → live in 2 hours

People who know what
the tool should do.

Product Manager

Creates product configurators and comparison tools without filing IT tickets. Ships tools aligned to the roadmap — not the dev team's availability.

Sales Specialist

Builds field calculators for customers, live and on the spot, from any device. Demos backed by real numbers close faster.

Technical Consultant

Publishes dimensioning tools or savings estimators for a professional audience. Credible, branded, and accurate — without a dev team.

Marketing Specialist

Deploys ROI tools and lead magnets directly onto landing pages. Measures engagement through built-in analytics with no separate setup.

E-commerce Manager

Embeds consumption calculators on product pages to convert hesitant buyers. One embed line, fully branded, no developer dependency.

Financial Advisor

Provides clients with interactive ROI, mortgage, or savings scenarios. Sandboxed logic means calculations are deterministic and auditable.

Transparent pricing.
No surprises.

Pricing Coming Soon

We're finalizing our pricing tiers to deliver the best value for your use case. Detailed pricing will be available within the next two weeks.

In the meantime, reach out to discuss your requirements and get an early quote.

Startup
9 250 Kč
Kč / month · one-time setup 6 000 Kč
  • Dedicated instance on EC2
  • PostgreSQL in Docker
  • Daily backups (7-day retention)
  • Email support
  • 50 AI generations included
  • All core platform features
Get Started
Enterprise
46 750 Kč
Kč / month · one-time setup 15 000 Kč
  • Multi-AZ RDS (t3.medium)
  • Two c5.xlarge instances + ALB
  • 99.9% uptime SLA
  • Dedicated support + training
  • Daily backups (30-day retention)
Contact Sales
💰
Pilot offer: First month free or 50% off for 3 months on SaaS plans. Annual subscriptions get an additional 10–15% discount. Ask during your demo call.
ℹ️
Custom setup: The Startup tier uses shared infrastructure without SLA guarantees. If you need higher availability, compliance requirements, or dedicated infrastructure, contact us to discuss a custom solution tailored to your needs.

Common questions,
honest answers.

None. Experts describe the calculator in plain language and the AI agent generates all the technical logic. For iterating, basic familiarity with formulas helps — but never required. Experts who know Python can edit logic directly, but it's optional.
Each calculator runs in an isolated Docker container with hard limits on CPU, time, and memory. Network access is fully disabled, filesystem is isolated, and restricted imports prevent abuse. The execution environment is completely separate from the main API — a failed script cannot affect the platform.
Yes. Any site that can render an iframe works — WordPress, Webflow, Shopify, custom HTML, React SPAs, internal portals. One line of HTML. For deeper integration (pre-filling values, receiving results) the postMessage API is fully documented and available.
Each company is fully isolated in its own Organization. All database queries are scoped by organization_id — Company A cannot see Company B's data. Within an org, Teams provide isolated workspaces. Cross-team requests return 404 (not 403) to avoid revealing that data exists in other teams.
Each team has a configurable deletion policy: Open (members delete immediately), Leader Approval (default — member deletion requires leader sign-off), or Leader Only (members cannot delete). All deletes are soft-deletes — recovery is always possible by an Org Admin.
The one-time setup fee (20,000–40,000 Kč for SaaS) covers deployment to AWS, environment configuration, custom domain and SSL, and an onboarding session. It's a one-time cost — the monthly subscription covers hosting, maintenance, support, and updates.
Yes. SaaS pilots offer the first month free or 50% off for 3 months. Self-hosted plans offer a 30-day trial via Docker Compose locally — verify the full functionality before signing. Annual subscriptions get an additional 10–15% discount.
Recommended: 4 vCPU, 8 GB RAM, 50 GB disk with Docker installed. You provide SSL, domain, backups, and monitoring. We provide a Docker Compose package with all services pre-configured. Basic IT infrastructure management is needed, but no application-level maintenance.

Get in touch.

Ing. Tomáš Dejmek
Ing. Tomáš Dejmek
Founder & Developer
📞 +420 601 126 032 ✉️ dejmektomas@gmail.com
📍 Habarticka 503, Prague, Czech Republic
Legal Information
Identification number 06798713
Register Trade Licensing Register
Headquarters Praha, Czech Republic

Ready to put your domain
experts in the driver's seat?

Book a 30-minute online meeting. We'll build a calculator from your own use case — live, during the call.

Book a Call Read the Docs
No credit card. No commitment. Free pilot available.