Custom Software Development

Invoicing software

Invoices are generated from quotes, orders or contracts, while recurring invoices are issued automatically every month. Customers pay by card via a link, and bank payments are matched to invoices.

What it includes

  • Invoices and quotes in PDF

    Quotes and invoices from one system.

  • Monthly invoices

    They are issued automatically under the contracts.

  • Card payments

    The client pays the invoice through Stripe.

  • Bank reconciliation

    Bank payments are matched to invoices.

  • Reports

    Paid and unpaid invoices.

Demos

All-purpose ERP

Contacts, projects, tasks, invoices, calendar and reports in one system.

Price

€3,000-€29,300

most often around €8,600

Based on 98 of our quotes as of 14 August 2026

How we get started

  1. 01

    You describe the project

    A few sentences about what you need are enough.

  2. 02

    We come back with questions and a price

    We ask 2–3 precise questions and give you the price range.

  3. 03

    We build a demo

    For a website, store or software system, we build a demo made for you.

  4. 04

    We send a proposal

    A written proposal with the exact price. We meet only to discuss the solution.

Frequently asked questions

Invoicing software: €3,000-€29,300, typically around €8,600. The exact price is included in the written proposal.

It depends on the scope, which we set out in the proposal. For comparison, here are examples from our portfolio: Pelikan DTM: since April 2026, continuously developed, Elite Call Center: 6 months, LiftexPro: 8 months.

Yours. We hand over the source code and data to you.

If you wish, we can maintain the project for €100-€350 per month. We specify what maintenance includes in the quote.

Connections we have already built: Stripe. We check other integrations and include them in the quote.

So far, we have not integrated submissions to the NRA. If you need this, we will check the requirements and include the integration in the quote.

What do you want us to build?

You describe the project, we come back with questions and a price range, then a demo and a written proposal.

Clients we have worked with

  • Akbari Perfume House
  • Ministry of Innovation and Growth
  • Crypto.bg
  • Pelikan DTM
  • FIX Bulgaria
  • Vakarel
  • MysteryBet
  • Omega Light
  • National Elevator Company
  • Christian Center Sofia
  • ZapaziChas
  • UnitGold
  • AGA Transfer
  • KMP Build
  • modernoBG
  • Vida Luxe
  • Avanta
  • Baytown Machinery
  • Labimex
  • Unit.Estate
  • Elite Call Center
  • Camélia Désir
  • Videoto
  • Pro Structura