Bug fixes and other improvements We've created an updated version of Beeper Mini that fixes an issue that caused messages not to be sent or received. You can get the update directly from beeper.com/update on your phone. We are still doing some final testing before submitting the update to the Google Play Store for distribution to all users. If you encounter any issues, you may need to uninstall and reinstall the app.
This is by Apple’s design choice, not because Android.
Android can send as high a quality over SMS/MMS as the network will allow. iPhone can’t.
In Apple’s defense, you’d still lose all the iMessage features when SMS is involved, because what else are you going to do when one participant doesn’t have iMessage? You’ll fallback to the lowest common mechanism.