
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.
Details
About
This educational tool assists students in finding the domains of rational and radical functions. It offers coaching calculators and guides with step-by-step problem-solving reinforcement. Examples simplify complex algebra, making learning more accessible.
What's New in 20/20 Function Domains
7.2
September 17, 2025
This version is iOS 18 compatible and contains minor bug fixes.
User reviews
Developer apps
FAQ
What types of functions does 20/20 Function Domains help with?
20/20 Function Domains assists with finding the domains of simple rational functions and various radical functions, including those with complex expressions in the numerator or denominator.
How does 20/20 Function Domains present domain solutions?
The app provides domains in both set-builder notation and interval notation, catering to different mathematical conventions and student preferences.
Is 20/20 Function Domains suitable for beginners?
Yes, the app's menu design reinforces each problem-solving step, and its examples highlight and simplify algebra that students often find difficult, making it ideal for learners.
What devices support 20/20 Function Domains?
20/20 Function Domains is available for iPhone and iPad devices.
How often is 20/20 Function Domains updated?
The latest version, 7.2, was last updated on September 17, 2025, indicating recent development and potential for ongoing support.
What is the price of 20/20 Function Domains?
20/20 Function Domains is a paid application, priced at $0.99.
Does 20/20 Function Domains have ads?
No, 20/20 Function Domains does not contain advertisements. It is a completely ad-free experience.
What is the user sentiment for 20/20 Function Domains?
Based on the available data, 20/20 Function Domains has a rating of 2.3 stars from 4 ratings, suggesting mixed user reception.







