What's more idiomatic in the following contexts? If needed, or "If it's needed".
Here are some examples that I came across:
I have an insurance for my country only. But I can buy another insurance for abroad. If needed / if it's needed.
You can go there tomorrow by yourself. But I can come to help, if needed / if it's needed.
- They can send you more products, if needed / if they're needed.