ESP Cards (com.jrobertson.espcards) on Google Play
Here are some ESP/Zener Cards for you to test a subject. Simple but effective. Choose a card. Challenge them to guess which one you chose!It simply contains the following (standard) ESP cards:- Wavy lines- Cross- Circle- Square- StarSwipe between the cards to change. Tap once to select the card. Tap again to turn it over. Tap a third time to return it to the deck.I am an amateur app developer and welcome feedback or suggestions!