Cap Jax is a basic downloadable math drill game. For $29.99 per year you can download and have access to this drill game.
You can drill on the 4 operations, Addition, Subtraction, Multiplication, and Division. It works as a supplement to any math curriculum you are using.
What makes Cap Jax Math Fax stand out amongst drill teqniques is the simplicity of it. It is a very basic, yet customizable drill program. Check out this screen shot,
you see how you choose the operation under selection. You choose the level, we all started at level one and moved up as it automatically did. You can customize how many facts in each set, and in how many seconds (known as Super Seconds) you want the problem to be answered. You must answer all problems in under the set Super Second amount in order to pass off the level. You see when you reach a score of 1000 on each operation family you have mastered those facts. The Play for Rating is a practice setting.
Positive reinforcement is a basis of this program. Each time you answer a question in less then the set Super Second time you get a SUPER across the screen. Each time you pass a level you get a big Congratulations!
You even earn (digital) merit badges for each operation family you complete.
Cap Jax is available for $29.99 a year for 10 students. I even set up an account for me. Whenever my kids have seen me playing on it, they ask to play it.
Here is a video of 2 homeschoolers talking about the program.
Disclosure: As a member of The Old Schoolhouse Homeschool Crew I review products like this, which I receive for free in order to be able to share my honest opinion.