This website helped I haven’t tried it yet but i know it’s gonna work. Try this website out it could really help a lot not forcing but u might need information on how to free up ur storage

Thiswebstitehelpalot_love Said:

"my question is how to free up storage in an iPad. I don’t have storage I use this iPad a lot and don’t know yet I try backing it up but takes to long which leaves me nothing to do. I think this website is for me so I can free up some storage. Am telling the community maybe they could help with this problem . Yet I still don’t know how to without being bored and waiting. Give me responses and details or information to confirm this problem."

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Troubleshooting iPad Storage:

Internal storage cannot be upgraded. It is what it is. So, the maximum internal storage capacity never increases, even if you upgraded your iCloud plan. Learn More here: What's the Difference Between Device Storage and iCloud Storage? Apple Support

So, what to do...

Clear Space Using my User Tips:

• How to Clear Space from your Mobile Device, and What to Clear: - User Tip. You may have too much installed, and need to clear space. So, see my user tip: 
• How to Clear "Other" in your iPhone's Storage - Use Backup - User Tip. Caches would be being used for remembrance of application use. It is essentially the same for an iPad: Backup your iPad, and then restore your iPad from the backup you've just created. All System Data (formerly called "Other")will delete.