Terms of Use

Petra is offered by •••, Ijbruglaan 1495, 1087 KM Amsterdam, The Netherlands. Contact: [email protected]. Company details are in our imprint.

Petra is a messenger with end-to-end encryption. You can chat, share files and voice messages, create groups and use the features described in the app. Some features are part of the optional subscription “Petra Plus”. We keep improving Petra; features can change.

You must be at least 16. Give correct information, keep your password and recovery code safe and do not share your account. You are responsible for what happens through your account. We cannot restore your chats if you lose your recovery code, because we cannot read them.

Do not use Petra for anything illegal, to harass, threaten or deceive others, to send spam or unwanted advertising, to spread malware, or to share content that sexualises minors or shows violence against people. Respect the rights of others.

Adult content may be shared between consenting adults, but not shown to people who did not ask for it. Links to adult sites are shown blurred by default.

You can block and report people in the app. We cannot read encrypted content; reports can only be assessed on the information you give us and on account data.

Where Petra offers screen-capture protection, view-once media or disappearing messages, protection works only inside the apps and cannot be guaranteed on every device. If a screenshot or screen recording is detected in a protected chat, the other person is informed with a notice in the chat. These features are not available in the web browser; such content can only be opened in the app.

Petra Plus unlocks additional features. Chatting and security always stay free. The first month is free where offered. Prices are shown before purchase.

Purchases in the apps are made through the App Store or Google Play. Renewal, cancellation and refunds follow the rules of that store; you can cancel in the store settings at any time before the end of the current period. A lifetime licence lasts for as long as Petra is offered. Vouchers grant Plus for the period or lifetime shown on the voucher; they have no cash value and are not transferable for money.

If you buy on our website, you can withdraw within 14 days. The right of withdrawal ends earlier if you ask us to start the service immediately and we have provided it in full.

We may warn, restrict or suspend accounts that break these rules or endanger others, for a limited time or permanently. You will be told the reason unless the law or safety prevents it. A suspension does not say anything about the person for others; contacts only see that the person cannot be reached. You can delete your account at any time in the app under Settings.

You keep the rights to your content. You allow us to transmit and store it in encrypted form as needed to run the service. You are responsible for your content and must have the rights to share it.

We work hard to keep Petra available but cannot promise uninterrupted operation. We are liable without limit for intent, gross negligence, injury to life, body or health and where the law requires. For slight negligence we are liable only for breach of essential obligations and only for typical, foreseeable damage. Mandatory consumer rights remain unaffected.

How we handle personal data is described in our privacy policy.

We may change these terms for good reasons, for example new features or legal changes. We will tell you in the app before important changes take effect. If you do not agree, you can delete your account.

Dutch law applies; mandatory consumer protection of your country of residence remains unaffected. Information on dispute resolution is in our imprint.