- XAdd - Grade 1
- XAdd - Grade 2
- XAlgebra
- XAlphabet
- XChildren's Bible Quiz
- XChristmas Carols
- XElectronics
- XElven Adventure
- XEnglish Grammar
- XFractions in Review
- XFrench Flash Cards
- XGerman Flash Cards
- XIntroduction to Fractions
- XLatin Flash Cards
- XMatch Me
- XMetrics
- XMultiply / Divide
- XNuclear Survival
- XNumbers One-Ten
- XParts of Speech
- XPhysics
- XPlanetary Positions
- XSAT Preparation
- XSpanish Flash Cards
- XSpeed Reading
- XSubcat
- XTyping
- XVerbs and Nouns
