What’s new in K2

New features and improvements, newest first.

Surprise review rounds

When new cards unlock, K2 sometimes slips in a quick quiz on cards you have already learned, picked by how likely you are to have forgotten them. Miss one and it comes back into your practice. You can always skip the round.

Image cards for your wins

Finished a battle, a co-op climb or a study session? Save or share a comic-style image card of the result, ready for an Instagram Story.

Smarter rooms and challenges

No repeated cards across games in the same room, and wrong answers now come from the same category, so you can’t guess by elimination. Members can also play 20-card decks and mix levels and categories.

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New: identify birds

K2 Nature starts with 200 of the most-observed bird species, five real photos each. Pick the right name from four, with look-alikes from the same family.

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Challenge a friend, play anytime

Create a challenge, share the link or QR code, and everyone plays the same questions on their own time. When it closes, see the rankings and who beat you.

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Roux CMLL for cubers

K2 Cube now drills the Roux method: 2-Look CMLL (9 cases) and full CMLL (42 cases) in seven levels.

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A cleaner header

Switch between K2 apps from the menu next to the K2 logo, and pin the ones you use most to the top bar from ⚙ Settings.