1. Google Music lets you keep your music on their Cloud, and it's MUCH bigger than iCloud + for free.
2. 'MEGA' app installs on your iPhone, saves every photo you take to a Cloud that takes no space on your phone, is for free, and it has a password lock if someone tries to open the phone. You can then access everything from desktop on Mega's site.
A cloud is just useful for keeping photos + music. Oh, and Dropbox makes your photos public.
1. Google Music lets you keep your music on their Cloud, and it's MUCH bigger than iCloud + for free.
2. 'MEGA' app installs on your iPhone, saves every photo you take to a Cloud that takes no space on your phone, is for free, and it has a password lock if someone tries to open the phone. You can then access everything from desktop on Mega's site.
A cloud is just useful for keeping photos + music. Oh, and Dropbox makes your photos public.
I have like 30GB left of storage on my iPhone, the problem is I don't have space left for a backup on the system cloud
And what? I have like 8 years of photos on Dropbox
I pay for 500 GB of iCloud storage. It's cheap. I like everything synced seamlessly to all of my Apple devices without having to lift a finger. I use Google Drive as a filing system, though.
I don't know if I should paid $2.99 for 50GB per month! 
I have some pictures there though
