What's the difference between Unjury chocolate splendor and Unjury chocolate classic?

They use different sweeteners.

I think the splendor had a funky taste whereas the classic just gives my smoothies a clean chocolate taste; no weird protein aftertaste or smell.

I use them both and can't tell a difference at all. I wouldn't be able to tell one from the other. I usually use mine in a mocha type shake though so that my be why. I also use them both (and the unflavored) to spike chocolate sugarfree pudding.

Looked it up on their website. The chocolate classic is sweetened with aspartame and the chocolate splendor is sweetened with sucralose.