Circles and Equations
The tutor in your pocket.
Archived App (Last seen on 1 Feb 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
Master finding the center and radius of a circle by completing the square. This learning aid offers a step-by-step coaching calculator, practice exercises, and a comprehensive guide with examples. It also covers applications like finding tangent lines and point-in-circle determination.
What's New in Circles and Equations
7.4
September 17, 2025
This version is iOS 18 compatible and contains minor bug fixes.
Developer apps
FAQ
What is the learning methodology of Circles and Equations?
Circles and Equations employs a multi-faceted approach including a coaching calculator for guided practice, a practice module for skill reinforcement, and a reference guide with detailed examples. This ensures students can learn at their own pace and revisit concepts as needed.
How does Circles and Equations help track progress?
The 'Practice' section of Circles and Equations presents users with a range of circle equations, from simple to more difficult. By working through these exercises, users can gauge their understanding and identify areas that may require further attention.
Does Circles and Equations offer certifications?
Circles and Equations is designed as a learning aid to help students master specific mathematical concepts. It does not currently offer formal certifications upon completion of its modules.
What is the price of Circles and Equations?
Circles and Equations is available for a one-time purchase of $0.99. This price grants users full access to all features without any recurring subscription fees.
Is Circles and Equations suitable for younger students?
Circles and Equations has an age rating of 4+, making it accessible for a wide range of users. Its focus on mathematical concepts may be more relevant for students in middle school and above.
How often is Circles and Equations updated?
The latest version of Circles and Equations is 7.4, last updated on September 17, 2025. This indicates a commitment to maintaining and potentially improving the application over time.
What devices support Circles and Equations?
Circles and Equations is compatible with both iPhone and iPad devices. This allows for flexible learning across different Apple mobile platforms.
Does Circles and Equations have ads?
Circles and Equations is ad-free. Users can engage with the learning material without any interruptions from advertisements.
