XSection

5.84K reviews
Content rating
Everyone
100K+
Downloads
Content rating
Everyone
Learn more
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this game

Master different methods and solve puzzles.

* More than 100 tasks: from basics to challenges
* 11 chapters to explore
* Built-in glossary with geometric terms
* Step-by-step instructions
* Easy to use

XSection is a trainer of solid geometry problem solving. It teaches you how to perceive 2D representation of polyhedra, lines, and planes from 3D Euclidean space. All the problems can be solved without complex calculations. The app contains the required theory facts and explanations. If you forgot a definition, you can instantly find it in the app’s glossary.

XSection is a perfect way for students to practice before tests or exams and to improve your spatial imagination. The app will not allow you to create an impossible object: for example, to "intersect" skew lines (which is a typical error when constructing cross sections on paper).

The best way to learn to solve math problems is to solve them a lot.

Main topics:
- Prisms, cubes, parallelepipeds, and cuboids
- Pyramids and tetrahedrons
- Diagonals of polyhedrons
- Cross sections
- Diagonal sections
- Parallel and central projections
- Method of traces
- Method of inner projection

XSection follows Euclidea - Pythagorea - Pythagorea 60° series of our geometric games. With these apps you can become a real Geometry Guru!

Starting from the 8th chapter levels are unlocked at 4-hours interval. But you can buy an IAP that removes this restriction.

Send in your inquiries and stay up-to-date on the latest XSection news at https://www.euclidea.xyz/
Learn how to construct cross sections of polyhedra.
Updated on
May 25, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    App activity
  • Data isn’t encrypted
  • Data can’t be deleted

Ratings and reviews

5.62K reviews
Mike R.
September 14, 2022
Well made and fun. Love it. Starting at level 8 (or could just be where it started for me) there's a 4 hour timer before you can play another X levels; but it's optional, it's a small amount of time, and there are zero ads, so you don't need to pay (but it's also a small amount of money, and a well-made/clever game!)
7 people found this review helpful
Did you find this helpful?
A Google user
September 8, 2019
Some of the difficulty seems to rely on the chosen view causing lines to coincide when they are not actually parallel in 3-space, which seems kind of a cheap trick in an otherwise excellent game. This might also explain why you can't rotate the view. I was hoping for some kind of acknowledgement for completing all of the levels, maybe a bonus puzzle or something, but I guess self-congratulation for being clever will have to do.
7 people found this review helpful
Did you find this helpful?
Daniel Van der Merwe
June 30, 2026
⭐⭐⭐⭐⭐ The Ultimate 3D Geometry Puzzle! XSection is an absolute masterpiece for puzzle lovers. It turns complex solid geometry into addictive, pure logic games. No tedious math or grinding—just raw spatial awareness. You slice through 3D shapes like cubes and prisms using the method of traces. The clean UI and interactive glossary make learning seamless, while the engine perfectly prevents impossible moves. 5/5 stars—essential download! I just wish there were more levels! 😟 😁👍😁👍😁👍 ⭐⭐⭐⭐⭐
1 person found this review helpful
Did you find this helpful?

What’s new

* Improved app stability and compatibility with newer Android versions.
* Improved purchase and unlock reliability.
* Glossary and rule animations now work better offline.
* Improved theme/language switching and screen layout behavior.
* Reduced app size.