Beeper Mini is really good. My Android bestie is finally a blue bubble. Thank God. https://play.google.com/store/apps/details?id=com.beeper.ima&pli=1
Beeper Mini: Chat With iPhones - Apps on Google Play

Finally, get blue bubbles on Android!

@film_girl How trustworthy is that app? How did they accomplish this? I have… reservations.
@chartier https://blog.beeper.com/p/how-beeper-mini-works — anecdotally, I’ve known Eric Migicovsky for over a decade and I trust him. But you don’t even have to use your Apple ID with it. They reverse-engineered it and it uses Apple’s servers.
How Beeper Mini Works

It's a technical deep dive, so buckle up!

Beeper Blog
@film_girl @chartier I can't imagine it will be too long before Apple changes their protocol to prevent 3rd parties from accessing it, "for security".
@jasonclarke @film_girl @chartier I have a hard time seeing how they can without blocking out any device not on the new current patched version of iOS.
@RickWilliams @film_girl @chartier That’s a good point. It would take years to do without dropping support for old devices. I wonder if they start the process now so they can do that in a few years?