# Euclidea: Sketches

> Interactive geometry app for creating and exploring geometric constructions. (iPhone/iPad app by HORIS INTERNATIONAL LIMITED.)

- Source: https://appshunter.io/ios/app/euclidea-sketches/id1232204340 (this page in markdown: same URL + `.md`)
- Developer: [HORIS INTERNATIONAL LIMITED](https://appshunter.io/developer/646324304)
- Category: Education, Productivity
- Price: Free
- Rating: 4.50/5 from 40 App Store ratings · 35 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 13 MB
- Languages: American English, Russian
- Released: 2017-05-08
- Data updated: 2026-08-15
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/euclidea-sketches/id1232204340/reviews.md

## What is Euclidea?

Euclidea: Sketches is an interactive geometry app intended for creating and exploring geometrical constructions. It is a great companion for the classic Euclidea Puzzles app. You start with an empty board and create your sketch with just a few taps. 

> Use smart and powerful tools
> Choose shapes from a template library
> Explore your constructions: they can be changed dynamically
> Customize your drawing 
> Label points
> Organize you own drawing collection
> Export to photo album

***For Euclidea Puzzles users***
The app is much more than a sandbox for Euclidea. The tools were revised and significantly improved. Since you do not need to count moves anymore,  the same constructions can be reproduced faster. 

***How to use***
There are 4 modes: Constructing, Decorating, Coloring, and Labeling. The Move and Eraser tools are available in any mode. Other tools are: Point, Segment, Ray, Straight Line, Circle, Polygon Templates (Regular Polygon, Equilateral Triangle, Isosceles Triangle, Right Triangle, Square, Rhombus, Rectangle, Parallelogram, Trapezoid, Isosceles Trapezoid, Right Trapezoid), Midpoint, Perpendicular Bisector, Angle Bisector, Perpendicular, Parallel, Copy Segment, Copy Angle, Circle by 3 Points, Triangle Center Collection (Incenter, Centroid, Circumcenter, Orthocenter), Tangent, Intersection.

Hints: Constructing
- Drag a circle or other object directly to the desired point until it snaps.
- The Segment tool can be used to extend segments.
- It is easier to use the Perpendicular tool selecting a line first.

Hints: Decorating
- Decorations are used to mark a perpendicular, equal angles or segments. 
- You cannot create a wrong decoration. For example it is impossible to mark segments as equal if their length is actually different.

Hints: Coloring
- Choose color and style, then tap a point, a circle, or a segment.
- You can create segments and points in the Coloring mode.
- You can deselect color to change a style only.
- The default color is the rightmost in the palette.

Hints: Labeling
- To hide/restore a label, choose "-" in the letter wheel and then tap a point on the drawing.

Hints: Move tool
- The whole drawing can be rotated using two fingers when the Move tool is active.
- Tap a line or a circle to see their base points that can be dragged.

Let's make geometry fun again!

## Key features

- Interactive geometric constructions
- Smart and powerful tools
- Template shape library
- Dynamic exploration of constructions
- Customizable drawings
- Organize drawing collection
- Export to photo album

## Recent user reviews (10 of 35)

All indexed reviews: https://appshunter.io/ios/app/euclidea-sketches/id1232204340/reviews.md

### 1/5 — An app that tries its hardest to be difficult to use.

*2025-03-04, version 1.15*

I love the Euclidea game. I saw promise in this app! The samples are amazing. But there’s no way to replicate them! How do I fix a segment length? How do I set motion constraints? The “help” section is the most unhelpful section. Add a few basic examples, give us a bone here!!!!! I really want to give this app 5 stars. I will, as soon as creating a basic 4 bar linkage isn’t the most impossible thing in the world.

### 3/5 — Good features but lacking the ability to trim circles into arcs

*2022-09-13, version 1.15*

Do you really want to see 2 large circles and a line involved in making a perpendicular bisector? Sometime you don’t.

Also let’s say I want an arc with a central angle of 120 degrees, I constructed it, but I don’t want to see the rest of the circle.

### 5/5 — Simple and perfect to explore geometry

*2022-08-26*

Love and gratitude to the developer for this great free app! It made it fun and easy to explore sacred geometry.

### 2/5 — So stupid :(

*2022-06-17*

Delete

### 4/5 — It could be one of the best if…

*2022-02-14*

I am a GeoGebra user, but sometimes it feels too complicated for just doing Technical Drawing exercises.

I’ve also used GeoEnzo but is only for computer and it is a little bit too simple and not very precise.

If I could only trace just an arc of a circle. The same for coloring, just one arc. Maybe I just don’t know how to do it yet (if possible please let me know).

Very easy to learn to use it.

Is there also any way to build segments with a known measurement?

### 5/5 — Very good app

*2021-01-18, version 1.15*

Very good app well designed and free

### 1/5 — Needs work

*2020-12-19, version 1.15*

App has many good tools. 
But I've found you cannot trim line or parts you don't want. 
Thus you cannot get the drawing you want.
Could have a better help guide.

### 5/5 — Please update the app

*2020-12-19, version 1.15*

Every time I save to Photos it'll freeze.

### 5/5 — Can you add ability to draw?

*2020-07-06*

It would be amazing to be able to write something by hand

### 5/5 — Замечательна доска для геометрических задач!

*2020-03-24*

Не хватает только темной темы оформления!

## Frequently asked questions about Euclidea

### What is Euclidea: Sketches?

Euclidea: Sketches is an interactive application designed for creating and exploring geometric constructions. It provides a digital canvas with a variety of smart tools to build and manipulate geometric shapes and figures. It serves as a companion to the Euclidea Puzzles app.

### What are the main features of Euclidea: Sketches?

Key features include a wide array of smart and powerful geometric tools, a template library for shapes, the ability to dynamically explore and change constructions, customization options for drawings, point labeling, organizing drawing collections, and exporting creations to your photo album.

### Is Euclidea: Sketches free to use?

Yes, Euclidea: Sketches is a free application. It does not have any in-app purchases or advertisements, allowing users to enjoy all its features without cost.

### What modes are available in Euclidea: Sketches?

The app offers four distinct modes: Constructing, Decorating, Coloring, and Labeling. Each mode provides specific tools and functionalities to enhance the geometric drawing experience, with Move and Eraser tools available across all modes.

### Who would benefit from using Euclidea: Sketches?

This app is beneficial for students learning geometry, educators looking for interactive teaching tools, and puzzle enthusiasts who enjoy the challenge of geometric problem-solving. It's particularly useful for users of the companion Euclidea Puzzles app.

## Version history (last 2 releases)

### 1.15 — 2017-05-22

This app has been updated by Apple to display the Apple Watch app icon.

• iPhone support
• Possibility to share sketches
• Fixed bugs

If you enjoy Euclidea: Sketches, please leave a nice review on the store.

### 1.13 — 2017-05-05

No release notes.

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## More apps by HORIS INTERNATIONAL LIMITED

- [Quick Route — A Puzzle That Requires Thought To Solve](https://appshunter.io/ios/app/quick-route-a-puzzle-that-requires-thought-to-solve/id882744410)
- [Euclidea](https://appshunter.io/ios/app/euclidea/id927914361)
- [Pythagorea](https://appshunter.io/ios/app/pythagorea/id994864779)
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- [XSection](https://appshunter.io/ios/app/xsection/id1069933287)
- [Tchisla: Number Puzzle](https://appshunter.io/ios/app/tchisla-number-puzzle/id1100623105)

All apps by HORIS INTERNATIONAL LIMITED: https://appshunter.io/developer/646324304

## Related topics

[tayasui sketches school](https://appshunter.io/ios/topics/tayasui-sketches-school) · [sketchers school](https://appshunter.io/ios/topics/sketchers-school)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-15.*