Can I get apps back after an update?

I have an Iphone 4s and I want to download an app but it needs an update, it needs 3.3GB and I have 2.1GB. If I delete my apps to get it can I get them back after I've updated my phone.

Sorry if its complicated

If you bought apps off the iTunes store, you can always download them again for free as long as you are using the same Apple account. You might lose any saved data on them though, like save games, photos, etc. ITunes may offer a way to back up all that but I've been on android for a couple years now and am not up on what the most current features are.

It's not complicated. Just resync it from iTunes after the update.

Yea. They would be under your Purchased section. Though I'm wondering about what app requires that big an update.

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