Euclidea v4.58

HORIS INTERNATIONAL LIMITED

• In-app purchases

About this app

Euclidea is a geometric construction puzzle game that solves the problem of providing a challenging and educational experience for users interested in geometry and problem-solving, benefiting students, teachers, and puzzle enthusiasts alike. Compared to alternatives in the Game Puzzle category, Euclidea stands out with its unique approach to geometric constructions and a high user rating of 4.7/5. However, it falls short in terms of offering a free version with limited content, which may not be sufficient for all users. The app's excellent rating and large user base are testaments to its engaging and well-designed puzzles.

Pros

Euclidea has an excellent user rating of 4.7/5, indicating a high level of user satisfaction and a well-designed user experience, which is a significant advantage in the Game Puzzle category.
With over 1,000,000 downloads, Euclidea has a large user base, providing social proof of its popularity and effectiveness as a puzzle game.
The app's developer, HORIS INTERNATIONAL LIMITED, has a professional website and email support, indicating a commitment to user support and feedback.
Euclidea does not contain ads, providing an uninterrupted gaming experience and making it more enjoyable for users.
The app's offline capability allows users to play puzzles without an internet connection, making it accessible in various environments.

Cons

Euclidea's free version has limited content, which may not be sufficient for all users, and the in-app purchases may be seen as aggressive by some users.
The app's monetization model, which includes in-app purchases ranging from $0.99 to $14.99 per item, may be a concern for users who prefer a one-time payment or ad-supported model.
Some users may find the geometric construction puzzles too challenging or frustrating, which could lead to a negative experience.
The app's compatibility with certain devices or Android versions is not explicitly stated, which may cause concerns for users with older devices.

Best for: The ideal user for Euclidea is a student or professional with a strong interest in geometry, mathematics, or problem-solving, who is looking for a challenging and educational puzzle game to improve their spatial reasoning and critical thinking skills, and is willing to invest time and potentially money in the app to access its full content and features.

Developer Description

Euclidea: Geometric Construction Puzzles

Euclidea is a FUN & CHALLENGING Way to Create Euclidian Constructions!

127 Levels: from very easy to really hard
10 Innovative Tools
"Explore" Mode and Hints
Easily Drag, Zoom & Pan

New levels are unlocked as you solve the previous ones. You can complete the whole game only if you earn all the stars. But you can buy an IAP that removes this restriction.

“Euclidea has been shown to help with imagination, intuition, and logic, all wonderful skills to develop.” – appPicker

“Euclidea is an absolute joy to play…it’s a game that every math student should have and, in an ideal world, every adult should like.” – Non-Trivial Games

***About Euclidea***
Euclidea is a brilliantly original way to learn about, explore and have fun with Euclidian Constructions! Your task is to solve interesting challenges by building geometric constructions with a straightedge and compass. If you design the most elegantly simple solutions in the least number of moves, you’ll earn the highest scores. Solutions are scored in lines (L) and elementary Euclidean constructions (E).

***Start Simple and Get Smarter!***
Don’t worry if you aren’t a math wizard. Euclidea starts out with simple challenges that guide you through the basics. Once you master the fundamentals, you’ll move on to tougher, more mind-bending challenges such as inner/outer tangents, regular polygons, and more. There are 120 unique challenges in total, which are organized in packs for simpler navigation.

***Add Constructions to Your Interface***
When you learn certain significant constructions – such as angle bisectors, non-collapsing compass, and so on – they are automatically added to the Euclidea interface’s shortcut, which helps you save time and allows you to create clean, uncluttered drawings.

***Easily Drag, Pan & Zoom***
Euclidea-created constructions are completely dynamic. As such, you can drag to adjust angles, lines, radii and so on. You can also easily zoom and pan. This not only makes the experience more interactive, but it allows you to more deeply grasp the relationships between geometric elements, explore various possibilities, and analyze errors.

***Instant, Automatic Precision***
Don’t worry about spending time or effort trying to achieve perfect precision, because Euclidea automatically handles that task by pinning points, lines and circles to the app’s clean interface.

***Additional Special Features***
> A helpful “Explore” mode that allows you to see the figure you need to construct
> An inventory of tools that you create as you progress – you’ll need these to solve future challenges
> Some challenges can be solved in more than one way, which means you can try a different approach and have even more fun

***Questions? Comments?
Send in your inquiries and stay up-to-date on the latest Euclidea news at https://www.euclidea.xyz/

Privacy

Since Euclidea does not request any permissions, users do not need to worry about their data being collected or shared. However, users should still be cautious when making in-app purchases and ensure they are using a secure payment method. Additionally, users should review the app's terms of service and privacy policy to understand how their data is handled.

Tips

To get the most out of Euclidea, users should start with the tutorial levels to understand the game mechanics and geometric construction concepts. Users can also experiment with different puzzle levels and modes to find their preferred difficulty and style. Furthermore, users can visit the developer's website for additional resources and support, such as FAQs and user forums.

What's New

Fixed account management.

In-app purchases

$0.99 - $14.99 per item

Version Information

Version: 4.58
Downloads: 1M+
Updated on: Aug 8, 2025
Released: Apr 19, 2016
Requires: Android 5.0

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Euclidea users say on Google Play

★★★★★

A.I. Gómez

Simply brilliant. The app is beautiful and fluid, but the geometry challenges are genuinely inspiring. As a Physics PhD, the level on circle tangents led me to a variable change linking an oscillatory system of different amplitudes to doubled frequencies. Also, Pascal's Theorem helped me decouple 5 equations into 3 (much like the reduced mass concept in a two-body problem). Truly useful for scientific thinking. Done with α and β, ready for γ!

★★★★

Yoshi Shen

this is a 2d geometry puzzle solving puzzle.

★★★

Lance

Not a great execution of the premise. For how many tools we are given, there is not actual freedom in using them. Many of the puzzle solutions that work in terms of geometry, do not count. There seems to be many ways to solve a level but in actuality there is only 2 ways that are accepted by the game.

★★