Chase will allow 2 apps in one day but they MAY reject the 2nd app. Then you call the Chase reconsideration phone line & tell them why you want both (maybe certain spend on one card & something else on the other). Search this thread for "reconsideration". Good luck. Your credit score tends to drop 4-8 pts per app. and will come back up after a couple months. Applying for 2 cards at the same time MAY only produce one hard pull. This varies but I'd sure try it.