Not enough space

You cannot upgrade your iPhone storage. The iPhone is born and dies with the "capacity" you chose when buying it.

So, the answer is no, sorry.

In order to have more space on your device (apps are installed on your iPhone only, not on iCloud or in any other place) you need to delete some stuff on your device.

Regards

Giulio

If you are referring to the storage space on your iPhone, then the answer is “no” because that storage space is not upgradeable. Upgrading the storage space on iCloud wouldn’t help either for this situation.

If you need to download additional apps to your phone, you will need to get another iPhone with a greater storage capacity.