Version 4.1.4: - minor bug fixes Thank you for using Math Central!

Version 4.1.3: - minor bug fixes and UI enhancements Thank you for using Math Central!

Version 4.1.2: - minor bug fixes Thank you for using Math Central!

Version 4.1.1: - minor bug fixes Thank you for using Math Central!

Version 4.1: - Added in-app purchase to remove ads - Minor bug fixes and enhancements Thank you for using Math Central!

Version 4.0.1: - minor bug fixes and enhancements Thank you for using Math Central!

Version 4.0: - Complete UI Redesign - Added Number Systems topic - Added Fractional Exponents topics - Overhauled the Scientific Notations topic - Difficulty level changes in several topics - New scoring system - New ability to redo a quiz from the Results page - New Summary Page - New ability to filter Reports by topic or subtopic - Dark Mode Compatibility - iOS 14 Compatibility - Several overall bug fixes and enhancements Thank you for using Math Central!

Version 3.6.2: - Minor enhancements and bug fixes Thank you for using Math Central!

Version 3.6.1: - Minor enhancements and bug fixes Thank you for using Math Central!

Version 3.6: - added new subtopics under Sequences - minor bug fixes Thank you for using Math Central!

Version 3.5: - added new Quadratic Equations topic with subtopics of varying difficulty - minor UI enhancements in Settings page Thank you for using Math Central!

Version 3.4: - you can now give us feedback by going: Settings -> Feedback - minor UI enhancements Thank you for using Math Central!

Version 3.3.1: - Minor enhancements and bug fixes Version 3.3: - New Topic: Proportions - Made UI enhancements - Bug fixes Thank you for using Math Central!

Version 3.3: - New Topic: Proportions - Made UI enhancements - Bug fixes Thank you for using Math Central!

Version 3.2.1: * adjusted the difficulty level of all arithmetic topics Thank you for using Math Central!

In this update, we made general enhancements and added a new topic: - Mixed Operations Thank you for using Math Central!

In this update, we added an in-app purchase to remove ads and other enhancements. Thank you for using Math Central!

In this update, we made minor enhancements. Thank you for using Math Central!

In this update, we made minor enhancements. Thank you for using Math Central!

In this update, we made the following changes: A. Added a scoring system and integrated Game Center Leaderboard B. Made enhancements to the Scoring Report, Results, & Settings pages and the quiz interface C. Added the following topics: 1. Speed, Distance, Time 2. Exponents: all subtopics 3. Statistics: Mean Absolute Deviation 4. Number Theory: Rounding 5. Percentages: Word Problems Thank you for using Math Central!

In this update, we made enhancements to the Settings and Scoring Report pages and added the following topic: - Conversions Thank you for using Math Central!

In this update, we made UI enhancements and added the following topics: - Fractions - Decimals - Number Theory: Place Values - Statistics: Word Problems Thank you for using Math Central!

In this update, we made UI enhancements and added the following topics: - Number Theory - Statistics Thank you for using Math Central!

In this update, we added a new topic: - Functions Thank you for using Math Central!

In this update, we made the following changes: - added new topic: Quadratic Equations - made minor bug fixes and enhancements Thank you for using Math Central!