Summary: <div>In this edition of the AppleVis Extra, Thomas and Michael speak with Kwasi Mensah, developer of the popular and accessible iOS games <a href="https://itunes.apple.com/us/app/stem-stumper/id428175527?mt=8&ign-mpt=uo%3D8&at=11l4LS" target="_self">Stem Stumper</a> and <a href="https://itunes.apple.com/us/app/spellstack/id594611230?mt=8&uo=8&at=11l4LS" target="_self">SpellStack</a>.</div> <div> </div> <div>To help people learn how to play the recently released SpellStack, <a href="http://www.ananseproductions.com/spellstack-players-guide/" target="_self">a guide is now available on the developer’s website</a>.</div>