demo.mmm.software
Telecommunications
Internet service provider
Subscribers, tariffs, network, maintenance requests, installations and invoices.
Open demo systemDevin, Bulgaria
Subscription management software — Devin
Subscription software: plans and pricing, automatic card payments, monthly invoices and subscriber history.
The subscriber chooses a plan and pays by card, and the payment repeats automatically. The invoice is issued on schedule, while the payment history is kept with the subscriber. We showcase subscribers and pricing in the demo for an internet service provider.
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
- Plans and pricing
The price and contents of each plan.
- Recurring payments
Monthly or weekly through Stripe.
- Monthly invoices
They are issued according to the subscription schedule.
- Subscribers
Each subscriber's plan and payments.
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.
