Make sure to avoid this, or you could be stuck with the penalty APR indefinitely.
You can end up with a penalty APR of up to 29.99% variable if you make one late or returned payment. The card only offers an intro APR period on purchases, but not on balance transfers.
Every purchase is rounded up to the nearest 10 points - so $2 will earn you 10 points instead of two points. Small transactions can earn you more points with the Citi Round Up feature. After that, and for everything else you buy, you get 1x points. Earn 2x points for your first $6,000 in purchases at supermarkets and gas stations each year. Earn 2,500 ThankYou points after you spend $500 within 3 months of your account opening.