Unlike IKEA, the ALDI offering also includes labels, which could be handy if you need a way to identify that random frozen item a few months down the track. However, they're not actually cheaper than IKEA, which sells 10 for $0.99 and 30 for $1.99. (IKEA charged $4.99 for 30 until quite recently.) That said, ALDI is more accessible for many people than an IKEA store.
Clips aren't a substitute for containers with sealable lids, but they're very handy if you don't want to decant everything you purchase. (As ever, I'm not a fan of the cupcake maker that's also on sale.)