A system for running your business — controllable via AI
One system instead of five tools and spreadsheets. From a freelancer to a team.
New: just ask in plain language via AI — “Who still hasn’t paid me?”
Most tools stop at invoices. MEFYS goes further.
Start with invoices and add stock, a team or your e-shop when you need them — without moving to another system.
No install, no training. You’ll issue an invoice faster than you make a coffee.
No card, in a few seconds.
Just enter the company ID, we fill the rest.
With a QR payment, so you get paid sooner.
Start simply with invoices and add inventory, a team or more features over time. MEFYS grows with you.
Issue an invoice in a few clicks and send it with a QR payment — your customer pays in two taps. MEFYS handles the rest.
Your product catalog and price lists come from the Start plan — and work without a warehouse. Add real barcoded stock when you need it.
Revenue, costs, who owes you and what’s coming in — clearly and in real time. No spreadsheets, no guessing.
Features you’ll value once you add people or orders. Turn them on when the time comes.
Roles and permissions for the whole team — the accountant sees invoices, the warehouse sees stock.
A public interface for your e-shop and partners — catalog out, orders in.
Rates, reverse charge and foreign currencies — calculated correctly every time.
Retainers and subscriptions issue themselves on schedule. Set it once.
Send a quote, and once the customer accepts, turn it into an invoice.
Two-factor login, encrypted passwords and each company’s data kept separate.
From Fakturoid, iDoklad, SuperFaktura, Vyfakturuj and other systems. Start exactly where you left off — no retyping.
We’ll bring over invoices, contacts and products.
Switch without losing your history.
A universal import you can do yourself.
Coming from SuperFaktura, Vyfakturuj or something else? We’ll build the migration for your system.
And if it ever doesn’t work out, you can take your data with you anytime. No lock-in here.
MEFYS vs Fakturoid · MEFYS vs iDoklad · MEFYS vs SuperFaktura · MEFYS vs Vyfakturuj
MEFYS is a new Czech system. We stand behind it with our own company and our first customers.
“I do my invoices from my phone in the evening — I type in the company ID and the rest fills itself in. Thanks to the QR code my customers pay within days, and I can see what's been paid. Paperwork takes me minutes a week.”
“I needed to invoice quickly and, above all, see who hadn't paid yet. MEFYS watches the reminders itself and I can focus on the building site. I set it up in one evening.”
“We run our own company on MEFYS for real — we invoice, manage stock and run it right inside, every day. We keep over 960 documents in it, including two years of migrated accounting history. What doesn't work for us never reaches you.”
14 days free, no payment card. After 14 days you choose with one click: stay on the free Free plan, or move to a paid plan.
Prices exclude VAT (we add 21% VAT; VAT payers deduct it). The yearly plan shows the price per month, billed once a year. Features marked “soon” are in the works.
Most companies are fine with one of our plans. If not, you add exactly what you need — without jumping to a higher tier.
You can add individually:
Your plan grows with you — we’ll add modules whenever you need them.
Add-ons on request →Tell MEFYS what you need — it answers, drafts an invoice or a reminder. Works with Claude and other AI assistants; setup takes minutes, no coding.
And incoming documents? Just snap a photo — MEFYS extracts the supplier, amounts and VAT from an invoice or receipt and prepares a draft for your approval. More about document extraction →
Your data stays in your MEFYS — the assistant only works with what you give it access to.
Yes — 14 days free, no payment card. After 14 days you choose with one click: stay on the free Free plan, or move to a paid plan.
In the EU, separated from other companies at the database level.
Yes — rates, reverse charge, ČNB rates and the non-VAT regime are calculated for you.
No — MEFYS is an invoicing and business system, not double-entry accounting. You issue and keep your documents in it, and your accountant gets exports (ISDOC, Money S3, CSV/XLSX) for their accounting software. VAT paperwork support is in the works.
Yes — we bring data from Fakturoid and iDoklad; ISDOC and CSV you can do yourself.
Yes — users with roles and a phone app including offline stock scanning.
Connect it to an AI assistant (e.g. Claude) and run invoicing, inventory and overviews in plain language. Setup takes minutes with no coding, and the assistant only works with what you give it access to.
By plan: Free 10, Start 50, Standard 200 and Business unlimited. Only issued documents count toward the limit — received invoices and cash receipts don’t.
Yes — upload the document or snap a photo on your phone and MEFYS uses AI to extract the supplier, amounts, VAT and line items, then prepares a draft of a received invoice for your approval. Extraction is included in every plan (Start 20, Standard 50, Business 150 documents a month; Free 3 to try out, one-off); a pack of +100 documents (non-expiring credit) can be added right in the app on any plan, including Free. Electronic ISDOC invoices are imported free and unlimited.
Yes — every paid plan is 10% cheaper when billed annually. The toggle by the pricing shows both monthly and yearly prices.
No, the web invoice is on every plan including Free — and the custom look (logo, stamp, colours and document styling) is free on every plan too.
It’s built by the Czech company ROOT4U s.r.o. The system is multilingual and your data stays in the EU.
Cancel anytime and take your data with you (export).
MEFYS grows with you. What we’re building next:
Payments match automatically; invoices mark themselves paid.
VAT and tax-return paperwork straight from your invoicing data.
Track vehicles and trips, with a monthly logbook PDF and accountant-ready records. Ordinary invoicing tools can’t do this.
Service orders, technicians, parts and repair status with customer notifications.
Point-of-sale, receipts and stock write-offs; rentals, returns, deposits.
14 days free, no payment card, done in a few minutes.
Issue your first invoice freeAlready have an account? Sign in