# Tchisla vs Sumaddle

The clearest difference is ratings volume: Sumaddle at 769 against Tchisla's 153. Tchisla's advantage is iOS requirement (8.0 vs 17.0). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Tchisla sells 1 one-off in-app purchase and Sumaddle sells 15 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for Tchisla against 4.9 for Sumaddle. That said, the two scores are not equally well evidenced: Sumaddle has 769 ratings behind it against 153, so its average is the more settled of the two. Written reviews are what separate them: 88% of Tchisla's written reviews are positive against 95% of Sumaddle's.

Tchisla ships an update monthly, Sumaddle every 3 weeks. The most recent releases landed on October 17, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Tchisla | Sumaddle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (153 ratings)](https://appshunter.io/ios/app/tchisla-number-puzzle/id1100623105/reviews) | [4.9 (769 ratings)](https://appshunter.io/ios/app/sumaddle/id1552172214/reviews) |
| Number of ratings | 153 | **769** |
| Positive reviews | 87.7% of reviews | **94.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 25 MB | 31 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [HORIS INTERNATIONAL LIMITED](https://appshunter.io/developer/646324304) | [Jonathan Buchanan](https://appshunter.io/developer/1540556286) |

## What reviewers say

### 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 |


### Sumaddle

[App page](https://appshunter.io/ios/app/sumaddle/id1552172214)

This logic puzzle game transforms pencil-and-paper challenges into interactive brain teasers. Fit number combinations to clues using pure logic, with no mental arithmetic required. Enjoy over 150 free puzzles of varying difficulty, with built-in help and offline play.

**Highlights:** Interactive logic puzzles, Number combination fitting, Pure logic solving, Built-in help and mistake correction, Over 150 free puzzles, Offline play, Ad-free experience

**Features:** Family Sharing

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Quirky, Pack 5 | $0.99 | one-time |
| Very Difficult Puzzles | $0.99 | one-time |
| Quirky, Pack 1 | $0.99 | one-time |
| Premium 9x9 Puzzles, Pack 1 | $0.99 | one-time |
| Crafty, Pack 1 | $0.99 | one-time |
| Crafty, Pack 2 | $0.99 | one-time |
| Crafty, Pack 3 | $0.99 | one-time |
| Sneaky, Pack 1 | $0.99 | one-time |
| Sneaky, Pack 2 | $0.99 | one-time |
| Sneaky, Pack 3 | $0.99 | one-time |
| Tricky, Pack 1 | $0.99 | one-time |
| Tricky, Pack 2 | $0.99 | one-time |
| Tricky, Pack 3 | $0.99 | one-time |
| Assorted Puzzles | $0.99 | one-time |
| Puzzle Generator | $9.99 | one-time |

**What reviewers like**

- 👍 Fun and challenging game
- 👍 Clean and intuitive interface
- 👍 Helpful hint system
- 🚀 No ads or data collection
- 💡 Unique puzzle concept

**What reviewers complain about**

- 🐛 Automatic hints can be intrusive
- 🐛 Inability to replay completed puzzles
- 💡 Need more free/sample puzzles
- 💡 Difficulty progression could be improved

**Reported bugs**

- Losing progress when minimizing the app
- Inconsistent difficulty ratings

**Requested features**

- Ability to selectively pencil in notes
- More difficult puzzle options
- Synced progress across devices
- Detailed statistics and leaderboard


## Frequently asked questions

### Is Tchisla free?

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

### Is Sumaddle free?

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

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

Tchisla and Sumaddle are both rated 4.9 out of 5 on the App Store, from 153 and 769 ratings respectively.

### Do Tchisla or Sumaddle have ads?

Neither Tchisla nor Sumaddle shows ads.

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

Tchisla ships an update monthly, and Sumaddle every 3 weeks. Most recently, Tchisla was updated on October 17, 2026 and Sumaddle on October 20, 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.*