Is Trader Joe's more expensive than Aldi?

I've been hearing a lot about Trader Joe's and Aldi, two popular grocery stores known for their low prices. But I'm curious, is Trader Joe's really more expensive than Aldi? I've heard that both stores offer a wide range of products at affordable prices, but I'm not sure which one is the better deal. Could you help me understand the price differences between the two stores, and maybe even give me some tips on how to save money while shopping at either one?