Meta is on the cusp of launching third-party integration with WhatsApp in Europe — something that’s required by the Digital Markets Act (DMA). It’s rolling out “over the coming months” with WhatsApp’s level of end-to-end encryption (E2EE) maintained.

Meta says that BirdyChat and Haiket will be the first third-party services to implement messaging interoperability with WhatsApp. No, we haven’t heard of them either, but that’s what leveling the playing field looks like.

WhatsApp users in Europe will eventually see a notification in the settings tab that will explain how to opt-in to third party messaging. It will work in WhatsApp for iOS and Android, but not on desktops, web, or tablets.

Meta says that “third-party messaging apps must use the same level of E2EE as WhatsApp,” and Meta can’t see encrypted messages in transit. Content can include text, photos, videos, voice messages, and documents. It will also only work for users with a WhatsApp account registered to phone numbers in regions covered by the DMA, according to the FAQ.

In September, Meta previewed what third-party integration with WhatsApp and Messenger will look like. Notably, users will be presented with the choice of receiving third-party messages in a separate folder or combined inbox. Meta also said it would remind users “each time a new third-party messaging app becomes available.”

Meta warns that third-party apps “might handle your data differently” than it would — is that a bad thing?