Numirio is a one-person company in Kyiv building one thing carefully. I started it in 2025 because the existing tools all wanted to be platforms, and I just wanted to send an invoice.
The story is unremarkable. I kept losing time to invoicing — not because there was much actual work, but because the tools I tried were loud, slow, and always trying to sell an upgrade.
So I started sketching what an invoicing tool would look like if it were designed for the person sending the invoice rather than the platform selling features. Most of the sketches were about what to remove.
Numirio is the result. It's a one-person product, built and run from Kyiv. I haven't raised money and don't plan to. The whole thing is deliberately small.
The plan is to keep doing exactly this for as long as it works.
When I have to choose between optimising for the freelancer who sends 15 invoices a month and the agency that sends 1,500, I pick the freelancer. The agency gets a worse experience that's still good enough.
I don't sell your data. There are no modals nagging you to upgrade. The free tier is a real tier, not a trap.
No lock-in and no hostage-taking. If you ever want to leave, I won't make it hard. If you stay, that should be because the product is good.
Invoicing software is infrastructure. It should be predictable, fast, and quiet. I avoid making it eventful.
Design, engineering, and the boring database work that keeps your invoices safe. Also the person who answers the support email.
Free for 3 invoices a month. No credit card needed to start. Talk to a human at contact.