Legacy · 2009–2013 · Math Education
Flashcard Champion®
#1 Paid Education App on the App Store
All Legacy Products
Flashcard Champion was Renkara's math education app, designed to make arithmetic practice engaging for students of all ages. Featuring a chalkboard-inspired interface with playful animations, the app was featured by Apple and reached the #1 position in the Paid Education category in January 2010. On January 10, 2010, Renkara hit a new daily sales record of approximately $2,420, driven in large part by the feature.
Features
What Made It Special
#1 in Paid Education
Featured by Apple in the App Store and reached the top position in the Paid Education category in January 2010.
Chalkboard Interface
A distinctive green chalkboard design with chalk-style typography and hand-drawn UI elements that made math practice feel like a game.
Four Operations
Addition, subtraction, multiplication, and division with configurable question counts (10, 20, 30, or 40 per session).
Timed Challenges
Multiple-choice answers against a countdown timer. Score tracking with stars for achievement.
Multiple Subjects
Beyond basic math, the app included U.S. Presidents and U.S. States study decks.
Powered by AccelaStudy
Later rebranded under the "Powered by AccelaStudy" initiative in 2013, integrating the AccelaStudy spaced repetition algorithm.
What Happened Next
Discontinued as Renkara refocused on the AccelaStudy product line.