SignsUp app for iPhone and iPad

Keep your brain in shape while having fun! Signs Up is a beautifully designed, simple-to-play math game that engages your mind while keeping a smile on your face.

Choose how much you want to be challenged with four difficulty levels: Kids, Easy, Medium, and Hard. You can mix and match levels to provide a difficulty range while you play! (Kids and Hard difficulty levels are unlocked with any in-app purchase.)

Endless Mode is a relaxing way to keep your brain in shape while having fun. No pressure, no scores. Just solve puzzles at your own pace. Signs Up offers a great way to while away the time as you help your mind stay sharp!

Survival Mode (in-app purchase required) is a race against the clock. You have sixty seconds to solve as many puzzles as you can. Correct solutions add time to the clock; make a mistake, and time comes off! The harder the puzzle, the more points its worth, and more time is added to the clock! Challenge your friends to see whos the top solver!