WhatsApp is opening its doors. Starting this month, users across Europe will be able to message people on competing apps like BirdyChat and Haiket directly from WhatsApp — without switching apps or creating new accounts.
It's the first time Meta has actually done this. For years, WhatsApp was a closed ecosystem. You could only message other WhatsApp users. Now, after three years of negotiation with European regulators and messaging companies, that's changing.
The shift comes from the EU's Digital Markets Act, which essentially said: if you're a dominant tech platform, you need to let your users talk to people on other platforms. It's about giving people choice. For WhatsApp users in Europe who opt in, they'll be able to send messages, images, voice notes, videos, and files to BirdyChat and Haiket users. Group chats with third-party users will roll out later, once those platforms are ready.
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Meta's approach here is worth noting because it tried to thread a difficult needle: open up the app without compromising security. All third-party chats use the same end-to-end encryption as WhatsApp itself, meaning your messages are still encrypted and Meta can't read them. That matters because interoperability could theoretically create security weak points.
The experience is designed to be simple. When you open WhatsApp, you'll see a notification in Settings explaining that you can connect with other messaging apps. You can turn this on or off anytime. There's no pressure. If you don't want to use it, you don't have to.
What's interesting is that this is genuinely optional — not a dark pattern where the default is "on" and you have to hunt through settings to turn it off. Meta's clearly trying to avoid the regulatory backlash that would come from doing that.
Why This Matters Beyond Europe
Right now, this is European-only. But interoperability requirements are spreading. The UK is watching. Brazil is considering similar rules. The US is debating it. What happens in Europe often becomes a template for regulation elsewhere.
For users, it means the walls between messaging apps are starting to crack. You won't need to convince your friends to download WhatsApp anymore — or vice versa. You can just message them where they already are.
For Meta, it's a significant shift. WhatsApp's value partly came from being the app everyone used. Now that value has to come from being the best app, not the only option. That's a harder position to defend, which is probably why it took three years of negotiation to get here.
Meta says they'll expand these interoperability features as required by the DMA over the coming months. The next likely step is making group chats work across apps. After that, the pressure will probably grow to include other messaging platforms beyond BirdyChat and Haiket.
