# kubic vs Tchisla

The clearest difference is review sentiment: Tchisla at 88% against kubic's 36%. Tchisla also leads on rating (4.9 vs 4.4) and ads (none vs shown). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. kubic sells 5 one-off in-app purchases and Tchisla sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Tchisla holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 245 and 154 respectively. Written reviews point the same way: 36% of kubic's written reviews are positive against 88% of Tchisla's.

kubic ships an update every 2 months, Tchisla monthly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | kubic | Tchisla |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (245 ratings)](https://appshunter.io/ios/app/kubic/id1062903406/reviews) | **[4.9 (154 ratings)](https://appshunter.io/ios/app/tchisla-number-puzzle/id1100623105/reviews)** |
| Number of ratings | **245** | 154 |
| Positive reviews | 36.4% of reviews | **87.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 383 MB | 25 MB |
| Requires iOS | 13.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pixel Envision Ltd.](https://appshunter.io/developer/444289214) | [HORIS INTERNATIONAL LIMITED](https://appshunter.io/developer/646324304) |

## What reviewers say

### kubic

[App page](https://appshunter.io/ios/app/kubic/id1062903406)

This optical illusion puzzle game challenges players to construct impossible structures inspired by M.C. Escher's art. With a clean design and minimalistic graphics, it offers over 60 mind-bending puzzles across various geometric and spatial themes. Features include layer locking, zoom, and an in-game hint system to aid progression.

**Highlights:** Optical illusion puzzles, M.C. Escher inspired designs, Geometric and impossible objects, Layer locking and manipulation, Zoom and view controls, In-game hint system, Progress syncing via iCloud

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Hints | $0.99 | one-time |
| No Ads | $1.99 | one-time |
| 25 Hints | $1.99 | one-time |
| 50 Hints | $2.99 | one-time |
| 100 Hints | $3.99 | one-time |

**What reviewers like**

- 💡 Original and clever puzzles
- 🧠 Mind-bending challenges
- 👍 Fun and engaging gameplay
- ✨ Well-realized game concept
- 🤔 Puzzles make you think

**What reviewers complain about**

- 😠 Frustrating tile placement
- 📉 Steep difficulty curve
- 💸 Excessive and intrusive ads
- 😩 Stressful user experience
- ⚠️ Ads interrupt gameplay

**Reported bugs**

- Tiles not sticking correctly
- App won't launch offline
- App won't load/crashes on launch
- In-app purchase attempts forced
- Bug with in-app purchase activation

**Requested features**

- Fix tile placement issues
- Improve difficulty curve
- Option to rotate puzzles
- Option to lock in pieces
- Dark mode for night play


### Tchisla

[App page](https://appshunter.io/ios/app/tchisla-number-puzzle/id1100623105)

This app challenges you to represent numbers as arithmetic expressions using only digits 1-9. It offers various operations, including roots, powers, and factorials, to find optimal solutions. Improve your mental math skills through engaging puzzles and competitive modes.

**Highlights:** Represent numbers as arithmetic expressions, Use digits 1-9, Standard arithmetic operations (+, -, *, /), Advanced operations (√, ^, !), Practice mode with tutorial, Competitive modes with leaderboards, Gallery for tracking progress and solutions

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Extended gallery | $1.99 | one-time |


## Frequently asked questions

### Is kubic free?

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

### Is Tchisla free?

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

### Which has better reviews, kubic or Tchisla?

Tchisla is rated higher. kubic averages 4.4 out of 5 from 245 ratings, while Tchisla averages 4.9 from 154 ratings.

### Do kubic or Tchisla have ads?

kubic shows ads; Tchisla does not.

### Which is updated more often, kubic or Tchisla?

kubic ships an update every 2 months, and Tchisla monthly. Most recently, kubic was updated on October 23, 2026 and Tchisla on October 24, 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.*