バッチリ vs. ぴったり

I was trying to use 見てもらえる and 見かける in my diary today, as I recently just had a note on 見かける.

I was curious if I used it correctly so I asked AI for feedback and then checked with my Japanese teacher.

• For my use of 見てもらえる, the feedback was 一番ぴったりです。
• For 見かける, the feedback was 「見かけた（noticed/spotted）」と言うのは、過去形でバッチリです！

So I was curious what was the difference between バッチリ and ぴったり

• ぴったり: Used when a word “fits” a situation perfectly. It’s all about the match.
• バッチリ: Used when you “nailed it.” My grammar was correct, so the result was spot on.

ぴったり is about alignment, バッチリ is about success/outcome.

ぴったり is also very common when talking about whether a physical size or space fits, for example:

この靴は私にぴったりです。
These shoes fit me perfectly.