OPSKAP OS
For small business

Invoice software for small businesses that hate software

Billing, cashflow, paperwork and people — one calm workspace instead of Telegram, Excel, email and a folder called “NEW_FINAL2”.

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A small business runs on the same four things everywhere: money in (invoices you send), money out (bills you receive), paperwork (contracts and compliance) and people (clients, team, vendors). OPSKAP OS puts those four in one place — set up in minutes, learned in an afternoon, priced for a small company, not an enterprise.

Invoices are VAT-ready PDFs with your brand; money in and out is read straight from them; documents are searchable instead of scattered; and your team and vendors live next to the work they do. EU-hosted, GDPR-first, with a free plan to start and no card required.

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Get paid on time

Branded invoices, automatic overdue reminders, public payment pages.

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See money go out

Bills you receive live as incoming invoices — know what you owe and when.

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Kill the paper chaos

Contracts, IDs and compliance in one searchable, private place.

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Team & vendors

Employees, contractors and vendor companies — who does what, with documents attached.

How it works

1

Add your company

Registry details and bank account — five minutes.

2

Move your billing

First invoice out the same day; clients notice the upgrade.

3

Run the week in five a day

Dashboard, overdue, cashflow — checked with morning coffee.

Common questions

We are 4 people — is this for us?

Exactly for you. Team plan (€49) gives 5 seats with roles; Free and Pro cover solo operators.

Is our data safe?

EU-hosted, GDPR-first, encrypted in transit and at rest, with export and deletion on request — see the Security page.

Can we keep our accountant?

Yes — OPSKAP handles daily operations; export everything your accountant needs, they keep their tools.

More on the product page and in the FAQ.

Run your business. Not the chaos.

Free forever plan · 14-day full trial · no credit card.

Start free