How we earn it

How we earn the trust we promise.

Three pillars. One system. No exceptions:

  • Consent first - always,
  • Regulated by a foundation we don't own,
  • Hosted in Germany, founded in Amsterdam,
  • No PII, no trackers, no ads, nothing collected behind your back - ever,
  • Free, forever - no fine print.
A circle of community members surrounded by verification checkmarks

Three pillars of trust

Consent-first verification

We only show what's safe to show.

Calmido Phone shows a caller's name in three cases only:
  • When the caller is in your own contacts,
  • When it's a company and the name comes from public business data,
  • When the caller is a registered user who has explicitly chosen to be visible.
Everyone else is a number, plus whatever the community has reported about it. A private individual's name is never shown without their explicit consent.

Community reports

Scams get caught by the people who got called.

When someone reports a number for scam, phishing, a callback trick, a robocall, or a silent call, the next person calling that number sees the warning.

The faster a report lands, the faster others are protected.

Names of people who submit reports are never shown publicly.

An independent protocol we don't control

The verification layer isn't ours.

Calmido is a Dutch company. The verification protocol behind Calmido is called TARIDE, an open attestation standard governed by a separate, independent Dutch foundation, in formation.

Calmido B.V. doesn't control that foundation. The point of the separation is simple: the layer that decides whether a caller is who they say they are can't be corrupted by us, a competitor, or an acquisition.
A lock illustration symbolising the data Calmido never collects

What we never show

  • A private individual's name without their explicit opt-in.
  • Names attached to scam reports. Anyone who submits a report stays anonymous.
  • The content of your calls. We don't listen.
  • Your contact list. It never leaves your phone.
  • Your location. We don't track it.

Our principles

01

Privacy by design

We don't collect data we don't need. We don't install trackers. We don't show ads. The information we keep is the absolute minimum we need to verify identity - nothing more.


Your contacts never leave your phone. Calmido cannot disclose personal data to any organisation because we don't hold most of it.

02

Zero knowledge

We don't own any private keys. They don't pass through our servers. The handshake is verified between devices, not by us.


If our database were dumped tomorrow, the attacker would find hashed email addresses and hashed phone numbers. Nothing useful. Nothing to sell.

03

Post-Quantum ready

Post-what? Q-day is the day a sufficiently powerful quantum computer can break today's public-key cryptography.


It's not science fiction; it's a question of when. Calmido is being built on post-quantum-ready primitives so the handshake survives that transition.

How we're structured
and why it matters.

Calmido is a Dutch B.V., a for-profit limited company. European by design: fully hosted in Europe, founded in Amsterdam, the Netherlands. The verification protocol is governed by a separate legal entity: the TARIDE Foundation, currently in formation with Dutch notarial oversight. The foundational documents are already published at taride.org.
When the foundation is formally established, further governance documents will be published. The separation answers a reasonable question: "what if Calmido becomes evil, or gets acquired?"

The answer: the verification layer continues. We don't own it. If you want to check for yourself, the documents are public.

We're in this with you

We work along with you.

Free. European. Yours.

Free, forever. Not a freemium ladder. Not 'free until we change our minds'. Just free.


We don't sell your data. We don't share it. We don't even have it. Calmido isn't just a phone app - it's a stand. Yours. Calling with the handshake.

Ready to see it in action?

Try a phone number in the Calmido Directory.
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  • Latest: 06 4150 4534
A person holding a phone, about to answer a call.