# Euclidea vs 4=10

Euclidea and 4=10 both sit at 4.8 stars, but that hides the real split: 98% of 4=10's written reviews are positive against 86% of Euclidea's. 4=10 also leads on update cadence (every 2 months vs every 3 months). Euclidea's advantage is iOS requirement (8.0 vs 12.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Euclidea sells 6 one-off in-app purchases and 4=10 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Euclidea against 4.9 for 4=10. Both are backed by a comparable volume of ratings — 937 and 2.6K respectively. Written reviews are what separate them: 86% of Euclidea's written reviews are positive against 98% of 4=10's.

Euclidea ships an update every 3 months, 4=10 every 2 months. The most recent releases landed on October 20, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Euclidea | 4=10 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (937 ratings)](https://appshunter.io/ios/app/euclidea/id927914361/reviews) | **[4.9 (2.6K ratings)](https://appshunter.io/ios/app/410/id1609871477/reviews)** |
| Number of ratings | 937 | **2.6K** |
| Positive reviews | 86.4% of reviews | **97.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 223 MB | 33 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HORIS INTERNATIONAL LIMITED](https://appshunter.io/developer/646324304) | [Sveinn Steinarsson](https://appshunter.io/developer/1477881290) |

## What reviewers say

### Euclidea

[App page](https://appshunter.io/ios/app/euclidea/id927914361)

Engage in geometric construction puzzles based on Euclidean principles. Solve increasingly difficult challenges using innovative tools, with options to explore, get hints, and compete with friends. Unlock new levels by earning stars or purchase an in-app item to remove restrictions.

**Highlights:** 156 geometric puzzle levels, 10 innovative construction tools, Explore mode with hints, Dynamic drag, zoom, and pan interface, Game Center competition, Unlockable tools and shortcuts

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock the Rest Levels | $0.99 | one-time |
| Unlock the Rest Hints | $0.99 | one-time |
| Thanks to developers | $0.99 | one-time |
| Night Mode | $0.99 | one-time |
| Many thanks to developers | $4.99 | one-time |
| Many, many thanks to developers | $49.99 | one-time |

**What reviewers like**

- 🚀 Excellent interface
- 🚀 Smooth controls
- 👍 Challenging and engaging puzzles
- 👍 Helps learn and improve geometry skills
- 👍 No ads or in-app purchases

**What reviewers complain about**

- 🐛 App crashes on launch for some users
- 🐛 Circle tool not snapping to points properly
- 🐛 Solutions not always accepted even when correct
- 🔒 Locked levels require in-app purchases to access

**Reported bugs**

- App crashing on launch
- Circle tool not snapping to points
- Solutions not being accepted correctly

**Requested features**

- Offline mode support
- Ability to mark points on free draw
- Protractor feature
- More supplemental educational content
- Ability to see when multiple solutions exist


### 4=10

[App page](https://appshunter.io/ios/app/410/id1609871477)

A casual number puzzle game for all ages. Combine four given numbers using basic math operations to reach the target of 10. It offers a relaxing experience that improves mental math skills and number familiarity.

**Highlights:** Combine four numbers to equal 10, Basic math operations, Gradually increasing difficulty, One-handed play, Improves mental math skills, Relaxing and soothing gameplay

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 4≠10 add-on | $3.99 | one-time |

**What reviewers like**

- 👍 Simple and fun
- 🧠 Helps improve math skills
- 🔒 No ads or in-app purchases
- 💡 Challenging yet relaxing

**What reviewers complain about**

- 🤔 Some levels too easy
- 🤯 Can get repetitive at times

**Reported bugs**

- None reported

**Requested features**

- Add more difficulty levels
- Introduce new gameplay modes


## Frequently asked questions

### Is Euclidea free?

Euclidea is free to download, with in-app purchases available.

### Is 4=10 free?

4=10 is free to download, with in-app purchases available.

### Which has better reviews, Euclidea or 4=10?

4=10 is rated higher. Euclidea averages 4.8 out of 5 from 937 ratings, while 4=10 averages 4.9 from 2.6K ratings.

### Do Euclidea or 4=10 have ads?

Neither Euclidea nor 4=10 shows ads.

### Which is updated more often, Euclidea or 4=10?

Euclidea ships an update every 3 months, and 4=10 every 2 months. Most recently, Euclidea was updated on October 20, 2026 and 4=10 on October 17, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*