XSection

4.6
5.8K reviews
Content rating
Everyone
100K+
Downloads
Content rating
Everyone
Learn more
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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/
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

4.6
5.59K reviews
A Google user
October 14, 2019
Good game just like their other two, but the descriptions remain somewhat cryptic. A lot of the time they just aren't terribly clear either by using terms that hadn't been described before (skew), lack of punctuation in places that would benefit from it, or just by being vague. The lack of a glossary baffles me, but the hint system is nice.
4 people found this review helpful
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A Google user
September 9, 2019
this is a pretty challenging puzzle at time but it would be nice if you could erase lines without having to erase one you've already made after that line (would help a lot to keep some of the more complex puzzles from getting to cluttered). was curiuos if any one else had problems on 9.5. I keep solving it and still wont get a star or the prompt to return to the galtery.
2 people found this review helpful
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Daniel Getz
August 22, 2020
Wonderful little game! I found this very fun. Really makes you think. But the controls that work well, no ads, and the simple design without time pressure make it relaxing at the same time. Note that later on in the levels, they use "intersection of sections" to mean what I would have called "intersection of section planes" based on the other definitions they give. There was one level in particular where this confused me.
19 people found this review helpful
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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.