J! Challenge is an app that allows you to play along with your favorite trivia TV show and keep score and track your performance over time. You can play alone as a single player or with a friend. When playing in 2-player mode, the person with the app is the official score keeper for both people.

Unofficial rules (or make up your own!):

- The person with the app keeps the score.
- Players must wait until the question has been read aloud completely before answering.
- First person to answer correctly wins the points for that round. In the event that both people blurted out the correct or incorrect answer at the same time, both players may either be scored or the points for that question can be skipped (its up to the players to decide).
- For the Daily Double wagers, each player must state their wager (up to their current amount) before the question is read. Note - It helps to pause the TV in order to set the bets before hearing the question.
- For the Final round, players must state their wager before the question is read. In order to keep the answers secret, write them down privately on a piece of paper, once the answer is revealed on the show. Players reveal their answers and are scored accordingly.

Notes:
- the game moves fast, so sometimes its easier to pause the show in order to catch up.
- You can touch the scoring value in the middle of the screen to set the betting level as soon as a contestant on TV calls out the value. (Example: "Ill take Movies for 400" - then you would select the "400" value so that you dont accidentally either forget the value or press the wrong score afterwards.

The app allows you to view your game history and track your performance in the various scoring levels over time.