Word memorization card vs Thumb calculator

・ Tap the “Create” button on the main screen. ・ Enter the name of the word book. Example: Japanese book ・ Enter the words you want to memorize on the front and back of the memorization card. Example: front [青空], back [blue sky] -You can enter as many pairs of words as you like with the arrow buttons below. ・ Back to the main screen. ・ Tap the "Use" button with the created word book selected. -Words on the front side are displayed, and you can see the words on the back side by tapping the "Turn" button. ・ Tap "Reverse" to reverse the front and back of all cards. ・ Tap “Shuffle” to randomize the card order when you move with the arrow buttons. ・ You can tap the star mark on the upper right to make it a landmark. (Tap the setting button at the top right of the main screen to rename or delete each word book.) Please contact the review section or DM here. https://twitter.com/corasck

A calculator that is easy to operate with just the thumb of one hand, even on large-screen smartphones. *Specially placed numeric keypad