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Commercial infrastructure for software makers

Sell and bill your software without building another product.

Set up plans, contracts and usage. Review the monthly close, issue your invoices and control who can use your software. Sell directly or through distributors, always in your company's name.

September close

Acme Cloud

Ready to review
Subscriptions 142 active
Invoices €18,460.20
Access 140 active · 2 in grace

Includes

Direct salesDistributorsUsage via API
Qaptu You issue. You collect.

What you get

Sell anywhere. Bill right. Stay in charge.

Eleven things you can use today, and one more on the way. No billing system to build, and no one standing between you and your customers or your money.

Available now

Plans you can sell worldwide

One price list for the whole world. Every buyer sees your prices with the right VAT for their country, straight from the live pricing API.

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Available now

Connected platforms

Your website and your software read your plans and each customer's status from the Qaptu API: prices, customers, usage and entitlements, with webhooks when something changes.

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Available now

One company, several brands

Your company issues the invoices. Each brand keeps its own products, plans, customers, partners, logo and invoice series.

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Available now

Collect with your own accounts

SEPA Direct Debit through your bank, cards through your own Stripe account or your bank's Redsys virtual POS. The money never passes through Qaptu.

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Available now

A website for each brand

Plans page, sign-up, customer portal and partners' area, with your logo and colour, at yourbrand.qaptu.app or on your own domain.

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Available now

Prepaid or postpaid, prorated

Charge each plan in advance or at the end of the period, usage always after it happens. Customers who start or cancel mid-month pay only for the days they had.

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Available now

Unpaid invoices under control

Services move from active to grace, restricted and suspended on your schedule, and are active again the moment the invoice is paid.

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Available now

A partner channel

Resellers and referral partners under clear agreements, with private plans for them and every commission tracked.

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Available now

Formal contracts

Versioned terms for customers and partners, accepted at sign-up or invitation. Qaptu keeps the evidence: who, when, from where and the exact text.

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Available now

Credit notes

Correct an issued invoice in part or in full with a credit note in the brand's own series. On a paid invoice, it tracks the refund you make.

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Available now

Automatic charges on saved cards

Customers save a card with your Stripe or Redsys account and each new invoice is charged automatically. A failed charge follows the usual unpaid-invoice states.

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Coming soon

Invoices that meet local tax rules

Invoices that follow each country's rules, such as Verifactu in Spain and the e-invoicing mandates across Europe.

You stay in control

Your invoices. Your payments. Your customers.

Qaptu is not a marketplace and not a merchant of record. It gives you the tools to sell and get paid, and then gets out of the way: no one sits between you and your customers, and there is no revenue share.

It does not sell on your behalf

You sell to your customers under your own name and your own brands, on your own websites. Every invoice is issued by your company.

It does not handle your money

Direct debit through your bank, cards through your own Stripe or Redsys account. The money goes straight to you: nothing is held, delayed or taken as a cut.

It does not chase your customers

You decide how to follow up on a late invoice. Qaptu gives you the service states, the history and the list of who is overdue.

Compare approaches

The right platform depends on what you want to remain yours

These products overlap, but they are built around different jobs. This comparison uses each company's public product information and focuses on the choice a software maker is really making.

  1. Qaptu

    Qaptu

    Spain · software commerce

    How Qaptu works ↗

    Operating model

    Infrastructure for software makers that sell in their own name, on their own branded channels and through partners.

    Best fit

    You want plans, usage, invoices, service access and a reseller or referral channel to share one source of truth.

    What you are choosing

    Your company remains the seller. Customers and money stay in your relationship and your payment accounts.

  2. Holded

    Spain · cloud ERP

    Holded ERP ↗

    Operating model

    An ERP that brings invoicing, accounting, banks, CRM, projects and other business operations together.

    Best fit

    A small or medium business wants to run its own back office and accounting from one application.

    What you are choosing

    You are choosing business-management software; embedding a commercial system inside your own SaaS is a different job.

  3. Quaderno

    Spain · tax compliance

    Quaderno for SaaS ↗

    Operating model

    Tax calculation, compliant invoicing and reporting connected to the sales channels and payment processors you already use.

    Best fit

    International tax compliance is the main gap in an otherwise established sales and payments stack.

    What you are choosing

    It complements your commerce stack; subscriptions, service access and partner operations may still live elsewhere.

  4. Stripe Billing

    International · payments and billing

    Stripe Billing features ↗

    Operating model

    Recurring and usage-based billing built into Stripe's payments platform, with invoicing, a customer portal and entitlements.

    Best fit

    Stripe is already central to your payment stack and you want billing close to payment processing.

    What you are choosing

    You get a broad payments ecosystem; your own white-label sales and partner operating model still needs deliberate architecture.

  5. Chargebee

    International · revenue management

    Chargebee Billing ↗

    Operating model

    Subscription, usage and hybrid billing with entitlements, revenue workflows and integrations for growing SaaS companies.

    Best fit

    A scaling SaaS business needs deep monetization and revenue operations across a mature toolchain.

    What you are choosing

    You are adopting a broad revenue stack, with the implementation scope and operating model that comes with it.

  6. Paddle

    International · Merchant of Record

    How Paddle works ↗

    Operating model

    A Merchant of Record for SaaS that takes responsibility for payments, recurring billing, tax and compliance.

    Best fit

    You prefer to outsource the legal seller, payment and global tax burden through one provider.

    What you are choosing

    Paddle becomes the seller of record. That removes work, but it is fundamentally different from invoicing customers in your own company's name.

Product scopes change. Check each provider's current documentation before deciding.

How it works

From plan to paid, without writing billing code

  1. 1

    Set up your plans

    Describe your product and its plans: a flat fee, a price per seat, a price per unit of usage, or a mix. Make a plan public or keep it private for chosen customers and partners.

  2. 2

    Sell direct or through partners

    Show live prices with the right VAT on your own website, and let customers sign up on your white-label channel. Partners can resell or refer you under an agreement you both accept.

  3. 3

    Bill every month, in your name

    A monthly billing run prepares your invoices, issued by you with gapless numbering: in advance or at the end of the period, with partial months prorated. When one goes unpaid, the service moves through grace, restricted and suspended, and is active again the moment it is paid.

  4. 4

    Your software asks what is allowed

    One API call tells your app whether a customer is active, in grace, restricted or suspended, and webhooks tell it when something changes. New subscriptions set up your service automatically, or wait for your team's approval first: you choose.

Plans and prices

Price it the way your product is used

Combine a base fee, a price per seat and a price per unit of usage in the same plan, billed monthly or yearly, in advance or at the end of the period. Qaptu adds it up every month and prepares the invoice in your name.

  • Flat, per-seat and usage-based prices, with included quantities
  • Public plans for your website, private plans for chosen customers and partners
  • Prepaid or postpaid per plan; usage always billed after it happens
  • Start or cancel mid-month and pay only for the days used
  • Prices are never edited in place: add a new one and archive the old

Bookings · Acme Software

Growth

Example
Public Billed monthly Paid in advance
  • Base feeFlat

    €29 / month

    €29
  • Team seatsPer seat

    5 × €6

    €30
  • BookingsUsage

    500 included, then €0.04 each · 820 used

    €12.80
This month €71.80 plus tax

Sell worldwide

The right VAT for every buyer, from one call

Your website asks for your prices with the buyer's country and whether they are a business, and gets them back with the right VAT already applied. The endpoint is public, so any website can call it.

  • Buyer in your own country: your local rate
  • EU consumer in another country: the rate of their country
  • EU business with a VAT number: reverse charge
  • Buyer outside the EU: no VAT
GET /v1/public/vendors/acme-software/pricing?country=DE&business=false

Growth plan, four buyers

Vendor based in Spain · €29 / month before VAT

Example
Buyer VAT Price
Spain Any buyer Local rate 21% €35.09
Germany Consumer Buyer's rate 19% €34.51
France Business with VAT number Reverse charge €29
United States Any buyer No VAT €29

Collections

Get paid into your own accounts

Collect by SEPA Direct Debit through your bank, or by card through your own Stripe account or your bank's Redsys virtual POS. Qaptu prepares the work and records the result; the money never passes through Qaptu.

  • Direct-debit mandates signed online by your customers, or registered by you
  • A remittance file for your bank, with each debit recorded as collected or returned
  • Saved cards charged automatically for each new invoice
  • Card payments confirmed by your provider's signed notification
How collections work

Direct debit remittance

Collection date October 5, 2026 · file for your bank

pain.008 Example
  • Example BakeryAB2026-000128 €71.80Collected
  • Sample ClinicAB2026-000129 €35.09Collected
  • Demo WorkshopAS2026-000041 €29Returned · AM04
Collected into your account €106.89

Unpaid invoices

Know who is overdue, and let your software react

When an invoice is overdue, the service moves through grace, restricted and suspended on the schedule you choose, and is active again the moment the invoice is paid. Your software only has to read the state. How you follow up with your customer is up to you.

What happens after an invoice is due
Example
  1. Due date

    Active

    Everything works.

  2. Day 1

    Grace

    Still works. A good moment to remind them.

  3. Day 15

    Restricted

    Your software limits what it allows.

  4. Day 30

    Suspended

    Paused until the invoice is paid.

  5. Paid

    Active

    Back at once, no ticket needed.

Example schedule. You set the days, and you can pin a state by hand at any time.

For your partners

Build your reseller and referral channel

You set the terms, your partners get their own area on your brand's website, and you see every sale and every commission. Partners join only through your invitation link and accept your partner terms.

  • Resellers buy at your discount and invoice their own customers
  • Referral partners earn a commission when the customer pays you
  • Private plans only your partners can sell
How the partner channel works

Partners

Example
  • SR Sample Reseller Reseller · 20% off list price Active
  • EC Example Consulting Referral partner · 15% commission Active
  • DA Demo Agency Referral partner · 10% commission Proposed

Commissions

  • 2026-000041Example Consulting €10.77Customer paid · you owe it
  • 2026-000052Example Consulting €4.35Waiting for the customer to pay

Tell us how you sell your software today

We will show you how Qaptu fits the way you sell and bill, and what it takes to switch.