An old field telephone resting on cracked concrete.

Privacy-first age verification

Phone verification

A one-time SMS code confirms the visitor holds the number — with explicit consent, and STOP to opt out.

Phone verification sends a one-time code by SMS to the number the visitor enters and confirms it. It proves possession of a mobile number, which makes it a useful supporting signal and account-linking step; it does not by itself prove age and is not offered as the sole method in enforced zones. Messages are sent only after the visitor ticks an explicit consent box.

How it works

The visitor enters a number and consents to receive a code; ComplyAge sends one short message through the SMS provider; the visitor types the code back. Sends are limited to a handful per minute per session, codes expire quickly, and replying STOP ends all messages to that number.

Consent and opt-out

The consent form the visitor sees is public — carriers' reviewers can open it without a session at app.complyage.org/sms-optin — and states what is sent, how often, and how to opt out. Message and data rates may apply; ComplyAge sends no marketing by SMS.

Not a mobile-network age check

Some regulators list mobile-network-operator (MNO) age checks as highly effective age assurance: the carrier confirms the account holder is an adult. That is a different technique from an SMS code, which confirms possession only. ComplyAge treats phone verification as a supporting signal, not an age proof.

Frequently asked questions

Does an SMS code prove my age?
No. It proves you hold the number. In enforced zones you must also complete an accepted method such as government ID, facial age estimation or a payment card.
How do I stop messages?
Reply STOP to any message. You will receive one confirmation and nothing further. Codes are only ever sent after you tick the consent box.
Where is the SMS consent policy?
It is shown inside the verification window and published publicly at app.complyage.org/sms-optin.