So good
Love
A mistake!!!
E=mc2 is for nuclear fusion and not the speed of light!! E stands for energy!!!
Otherwise it is a good app :)
Otherwise it is a good app :)
Great quiz
I should have known them all - but I didn't!
WOW
Absolute whiff
Archived App (Last seen on 22 Aug 2025)
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
Test your knowledge on a variety of topics. Compete in survival mode for practice or take the full test to see how you stack up against friends. Aim for 100% accuracy to prove you know it all.
✓Knowledge testing
✓Survival mode
✓Full test mode
✓Friend comparison
✓High accuracy goal
Show original description
What's New in You Should Know This
7.0
March 25, 2016
Minor bug fixes.
User reviews
Developer apps
FAQ
What is the main goal of You Should Know This?
The main goal is to test your general knowledge and achieve 100% accuracy on questions. You can practice in survival mode or take a full test to compare your scores with friends.
Does You Should Know This have ads?
No, You Should Know This does not contain advertisements.
What devices is You Should Know This available on?
You Should Know This is available for iPhone, iPad, and iPod.
What is the age rating for You Should Know This?
You Should Know This has an age rating of 4+.
How often is You Should Know This updated?
The latest version, 7.0, was released on March 25, 2016. The app was initially released on February 13, 2016.
What is the user rating for You Should Know This?
You Should Know This has a rating of 4.0 stars based on 1 rating.
Can I play You Should Know This offline?
The provided description does not specify if You Should Know This can be played offline. It is recommended to check within the app or its store listing for details on offline functionality.
How does You Should Know This compare to other trivia games?
You Should Know This focuses on achieving 100% accuracy and allows direct comparison with friends, which may differentiate it from other trivia games that focus more on score accumulation or broader competition.