Case study · 2026 · Custom software · AI · Web
A CRM that fits the company.Customers, quotes, invoices and projects in one place, NAV-compliant, with a base plan that stays free. Our own product.
HelloTeam started as the tool the studio wished its clients had: a Hungarian CRM where the quote, the invoice and the NAV report are one flow instead of three tabs. It is now a product with sixty-three modules, a free base plan and an ERP sibling.
- Next.js
- TypeScript
- PostgreSQL
- Számlázz.hu API
- Billingo API
- NAV Online Számla
- LLM assistant

Inside the build



Overview
- 63
- Modules
- 0 Ft
- Base plan, forever
- 2
- Invoicing providers
- EU
- Data stored in Germany
HelloTeam is a browser CRM built for Hungarian small businesses and run as a product by the studio. Contacts, deals, quotes, invoices, tasks, calendar, products and projects live in one place; an accepted quote becomes an invoice through Számlázz.hu or Billingo and reports to NAV Online Számla. An AI assistant answers questions about the company's own data. Sixty-three optional modules, from work orders and stock to HR, a webshop and a website editor, are priced one by one with a three-day trial each. The base plan is free with no card and no time limit; data is stored in the EU. A sister product, HelloTeam ERP, carries the manufacturing, warehouse, ledger and payroll side for larger companies.
What shipped
What it does
- Quotes to NAV-compliant invoices through Számlázz.hu or Billingo
- 63 modules, each priced on its own with a 3-day trial
- AI assistant over the company's own data
- Free base plan, no card, no time limit, EU data
The problem
- Hungarian SMEs run on spreadsheets and a separate invoicing site, and nothing links the two
- Foreign CRMs do not report to NAV and their free plans are timed trials
- Paying for a whole suite to use three features
Why it matters
- One record from first call to paid invoice
- Only the modules a business uses, each on its own price
- A product the studio runs, so the roadmap comes from real users
How it shipped
- 01 · BRIEF
The three-tab problem.
Every small-business client ran a spreadsheet, a separate invoicing site and a calendar, and retyped the same customer into each. The product brief was one record from first call to paid invoice, with the Hungarian specifics built in rather than bolted on.
- 02 · CORE
Contacts, deals, quotes, invoices.
The core objects and the one flow between them: a deal becomes a quote, an accepted quote becomes an invoice, the invoice goes out through Számlázz.hu or Billingo and is reported to NAV Online Számla without leaving the screen.
- 03 · MODULES
Sixty-three modules, each its own price.
Fleet, work orders, cash register and stock, HR, a webshop, a website editor: each a module a business switches on for its own monthly price after a three-day trial, so nobody pays for a suite to use three features.
- 04 · AI
An assistant that knows the company's data.
Questions in Hungarian over the company's own contacts, deals and invoices, answered from the data and not from the model's imagination, with a monthly quota on the free plan.
- 05 · SITE
Industry pages, comparisons, a free plan.
Pages for car dealers, mechanics, builders, webshops, restaurants, salons, clinics, property managers, agencies and accountants, a comparison of ten CRMs with sources, a MiniCRM comparison, llms.txt and a feed: the site is built for Hungarian search and for answer engines.
- 06 · RUN
A product, run like one.
Early-access plans with a twelve-month price guarantee for pre-registered users, desktop and mobile apps on the roadmap, HelloTeam ERP for the companies that outgrow the CRM. The backlog comes from support tickets, not from a deck.
Stack
CRM
Customers, deals, quotes, invoices, projects
One flow from first contact to paid invoice, with tasks, calendar, products and services alongside.
Invoicing
Számlázz.hu, Billingo, NAV Online Számla
Invoices issued through either provider and reported to NAV from inside the CRM.
Modules
63 add-on modules
Work orders, stock, cash register, HR, fleet, webshop, website editor and more, each on its own price with a trial.
AI
Assistant over your own data
Answers from the company's contacts, deals and invoices, in Hungarian.



