Why is the mobile number verified at sign-up?

The verified mobile becomes the sender ID for messages and the destination of the account's second login factor. The PIN expires in 15 minutes.

Can companies outside Spain sign up?

Yes, as a company and with a corporate email address. Free webmail accounts are not accepted outside Spain.

Your account, free and in 30 seconds.

Q: Why does lofirmo.com ask for an ID or tax ID at sign-up?

Because it issues invoices and, as a Trust Service Provider, legally valid certificates in the account holder's name. The identifier is checked and must match the name.

Q: Does the account have any cost or lock-in?

No: the account is free with no lock-in. You only pay for the credits you buy, and they never expire.

No downloads, no lock-in, no card required. We verify your mobile by SMS, email you your password, and you can send your first certified notification or your first contract right away.

Immediate access to every service and to the API
Free trial credits for companies One code per mobile number, subject to conditions.
No commitment: buy credits only when you want to
Free support by phone and email · +34 910 606 161

Trust Service Provider
ISO 27001 · ISO 9001

1. Your details
2. Verify your mobile
3. Done!

Your details

We use them to issue your invoices and certificates, so they must be real.

Company or freelancer Individual

Company or freelancer name

Tax ID

Email We'll send your password there. For the free trial credits, use your corporate email.

Mobile

We'll text you a PIN to verify it. It becomes your sender ID and your second login factor.

I have read and accept the terms and conditions — including the data processing annex (Article 28 GDPR) — and the privacy policy.

Already have an account? Log in

Trust Service Provider Qualified Timestamping ISO 27001 & ISO 9001 Human support · +34 910 606 161

What happens next

From account to your first legal proof

You receive your password

It arrives by email as soon as you verify your mobile. You can change it from the dashboard whenever you like.

Try whatever you want

Certified notifications, contracts, timestamps, identity verification… all from the same dashboard, with free trial credits for companies.

Buy when you're sure

Credit bundles from €10 that never expire. See all rates on the pricing page — and if your volume is high, let's talk.

Frequently asked questions

Before you sign up

Why do you ask for my ID or tax ID? +

Because we issue invoices and, as a Trust Service Provider, legally valid certificates in the account holder's name. We check that the identifier is valid and matches the name, so nobody can sign up impersonating your company.

Why do you verify my mobile? +

The verified mobile becomes the sender ID for your messages and the destination of your account's second login factor. The PIN expires in 15 minutes and is used for nothing else.

Is there any cost or lock-in? +

No. The account is free with no lock-in: you only pay for the credits you buy, whenever you want, and they never expire. See all rates on the pricing page.

I'm outside Spain — can I sign up? +

Yes, as a company and with your corporate email (we do not accept free webmail accounts outside Spain). Choose your country in the mobile dropdown so the PIN reaches you correctly.