I purchased this trick after watching a world class magician perform it at the Magic Castle. The usefulness of the effect is the variety of applications. It forces a number of your choice. This could be a card value, dice roll, serial number, anything numeric. Only limitation is imagination.

Drawbacks. IOS only. Works only on Basic Calculator mode. be careful of screen orientation portraits vs landscape. I installed on an iPad mini and it works just fine. Minor issue with scientific notation on larger numbers, but switching to landscape mode usually fixes it.

Originally, I was reluctant to install foreign software, but the gimmick involves just some shortcuts and you can inspect everything before enabling. So, I am ok with that.

I haven’t tried it yet, there are two additional modes beyond the stored force. One is what they call on the fly, you can change the forcing value using a shortcut. I opted just to alter the existing code to the number of my choice. Probably easier than using their feature. Second is a voice activation, I am working that one.

This trick works with the newer versions of the iOS (18 and up) and probably works with legacy as well. The video gives a Facebook Group and the author’s personal email. Seems like he really stands behind his work.


If you have any desire for calculator magic and a unique way to force a number, I highly highly recommend this product. The magician I saw using it had a very creative implementation that kept us wondering and he kept getting us to give him more and bigger random numbers through his 20 minute show. He used this as his finale, it is that good.

I would like to say a huge thank you to the author, I had some problems with my phone and he helped me solve it very quickly.

The trick works and it is very cool!
I recommend it to everyone!