Viewing achieved challenges from within the updated app?

Is there anywhere within the new updated app, where I can see all my achieved challenges in one place?
From memory, I think the old app had this at the bottom of the right side swipe out bar/menu.

Any help would be greatly appreciated.

Tap on the Streak/Coins tab at the top, it will open the stats, where you will be able to see your active and past challenges.