Seems like square trade is a better deal (cheaper per month) and has lower deductibles.
You can regularly get 30% off codes for square trade (up to $30 off) which brings a 2 year iPhone plan down to $96USD ($50 deductible). For a new phone.
That's around 4USD/month.
They also have a monthly plan for phones over 30 days old (8/month i think)
Not sure if protect your bubble would win out with multi device discount though (I'm doubting it).