If you're one of the many unfortunates that can't add or subtract in multiples of fifty, you will no longer be laughed out of the weekly Sopio Super League Championship Tournament because you'll have the Sopio Counter App - now 100% more FREE! Add, subtract, win, lose, laugh, cry - this app can make you do some of these things AND LESS.
Sopio was made by Alex Day and Danny Hooper.
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Visit www.sopiocards.com for more about Sopio!