demo.mmm.software
For every business
All-purpose ERP
Contacts, projects, tasks, invoices, calendar and reports in one system.
Open demo systemKubrat, Bulgaria
Invoicing software — Kubrat
Invoicing software: invoices and quotes in PDF, monthly contract invoices, card payments and bank reconciliation.
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.
We work from Sofia with clients across the country — remotely, and on-site when the project requires it.
Price
€3,000–€29,300
most often around €8,600
Based on 98 of our quotes as of 14 August 2026
What the system 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.
Live demo systems
Working software you can open right now.
Questions and answers
How much does it cost?
€3,000–€29,300, usually around €8,600. The exact price is stated in the written quote.
How long does it take?
It depends on the scope—we’ll include it in the quote. For comparison, here are examples from our portfolio: Elite Call Center — 6 months, LiftexPro — 8 months.
Who owns the code?
Yours. We hand over the source code and data to you.
What happens after launch?
If you wish, we can maintain the project for €100–€350 per month. We specify what maintenance includes in the quote.
What can it connect to?
Connections we have already built: Stripe. We check other integrations and include them in the quote.
Does it submit invoices to the NRA?
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.
