Can I get space on my iPhone without buying a new one?

I only have an 8gb iPhone and it becomes annoying when I run out of space and please don't suggest iCloud I've bought more storage but it just backs your apps up I want to be able to get more apps without having to be worried about going over capacity so please even if I have to jailbreak give me something that could add like 4gb or 5 or any please!

Okay the othet guys is right about iphone not being able to add memory

but on any android phone and most basic phones you can add an micro sd card and add memory for like 10 bucks

iphone you can't its a downside to the iphone

Try deleting stuff you don't need or use?