XSection

4.6
5.79K reviews
Content rating
Everyone
100K+
Downloads
Content rating
Everyone
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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
Apr 07, 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
5.57K 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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Caleb Hanger
Apr 07, 2026
Fantastic game. As wonderful as Euclidea and Pythagorea in challenge level and app presentation, and three-dimensional. I paid the two bucks to unlock all the levels in a heartbeat. So, why 4 stars and not 5? I can't label my lines, nor can I erase lines that I don't need anymore. That makes it *really* hard to navigate what I'm looking at, and severely mars an otherwise very-top-shelf game for math geeks. The ability to erase lines and to label lines would change my rating from 4 to 5 easily.
33 people found this review helpful
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William Faulk
December 14, 2023
I really like this game — I completed it, and without hints, I think — but a wonderful improvement would be a way to choose a color for each line and point you construct, so you don't get confused between two that are very close to each other. It would also be nice to be able to make certain lines invisible; sometimes there are so many construction lines for things you're done with.
1 person found this review helpful
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What’s new

v1.04