Is OneSignal GDPR compliant?

What does OneSignal do?

Web push notifications. Registering a device creates a durable identifier, and asking for the browser permission before the visitor has agreed to anything is both unlawful and unpopular.

Does OneSignal need consent?

Yes. OneSignal is Advertising, which is never strictly necessary for a website to function. Under ePrivacy Article 5(3), and its national transpositions, storing or reading anything on the device for that purpose requires consent first, and that consent has to be as easy to refuse as it is to give.

ePrivacy Art. 5(3) · TDDDG § 25 (DE) · TKG 2021 § 165(3) (AT) · GDPR Art. 6(1)(a)

Does OneSignal send data outside the EEA?

Yes. OneSignal processes data outside the European Economic Area, so you need a transfer mechanism under Chapter V and you have to say so in your privacy policy. In practice this means standard contractual clauses, or a provider certified under the EU-US Data Privacy Framework.

GDPR Art. 44 · GDPR Art. 46

How do we detect OneSignal?

We load your page in a real browser as a first-time visitor who clicks nothing, then look at what it contacted. OneSignal is recognised by requests to onesignal.com and os.tc, and we report whether it merely loaded or actually sent data, and whether it set a cookie before any choice was made.