20 Questions
Free
1.01for iPhone, iPad and more
Age Rating
20 Questions Screenshots
About 20 Questions
The classic parlour game with a twist, you can see how the computer is storing answers as you go along.
The idea is that you "teach" your iPhone how to play the game, and see how the data is stored in a binary tree.
Your iPhone (or iPad) learns from your answers and stored them on your phone, becoming more and more intelligent over time.
A wonderful education tool for learning about binary trees (look at the worksheet pack on www.studeapps.binarytrees) for full information about how this App helps you to learn about this important computer science concept.
The idea is that you "teach" your iPhone how to play the game, and see how the data is stored in a binary tree.
Your iPhone (or iPad) learns from your answers and stored them on your phone, becoming more and more intelligent over time.
A wonderful education tool for learning about binary trees (look at the worksheet pack on www.studeapps.binarytrees) for full information about how this App helps you to learn about this important computer science concept.
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What's New in the Latest Version 1.01
Last updated on May 30, 2019
Old Versions
Added tutorial, and changed colour scheme to dark mode.
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Version History
1.01
May 30, 2019
Added tutorial, and changed colour scheme to dark mode.
1.0
May 30, 2017
20 Questions FAQ
Click here to learn how to download 20 Questions in restricted country or region.
Check the following list to see the minimum requirements of 20 Questions.
iPhone
Requires iOS 10.2 or later.
iPad
Requires iPadOS 10.2 or later.
iPod touch
Requires iOS 10.2 or later.
20 Questions supports English
