# Sumaddle vs Klack

The clearest difference is in-app purchases: Klack at none against Sumaddle's 15. Klack also leads on iOS requirement (15.1 vs 17.0). Sumaddle's advantage is ratings volume (769 vs 1) and update cadence (every 3 weeks vs every 2 months). On price, rating, ads and device support there is nothing between them.

Both are free to download. Sumaddle sells 15 one-off in-app purchases. Klack asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Sumaddle against 5.0 for Klack. That said, the two scores are not equally well evidenced: Sumaddle has 769 ratings behind it against 1, so its average is the more settled of the two.

Sumaddle ships an update every 3 weeks, Klack every 2 months. The most recent releases landed on October 20, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Sumaddle | Klack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (769 ratings)](https://appshunter.io/ios/app/sumaddle/id1552172214/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/klack-game-night-planner/id6758454917/reviews)** |
| Number of ratings | **769** | 1 |
| Positive reviews | 94.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 31 MB | 40 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Jonathan Buchanan](https://appshunter.io/developer/1540556286) | [Klack LLC](https://appshunter.io/developer/1872990599) |

## What reviewers say

### 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


### Klack

[App page](https://appshunter.io/ios/app/klack-game-night-planner/id6758454917)

Organize your board game collection, plan game nights with friends, and select the perfect game to play. Features include AI-powered identification from photos, advanced filtering, and integrated tools for dice rolling and score tracking.

**Highlights:** AI photo game identification, Import from BoardGameGeek, Filter collection by player count, complexity, time, age, Create game night polls for date, time, and game choice, First player selector, Digital dice roller, Flexible score tracker

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

**In-app purchases:** none


## Frequently asked questions

### Is Sumaddle free?

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

### Is Klack free?

Klack is free to download, with no in-app purchases.

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

Klack is rated higher. Sumaddle averages 4.9 out of 5 from 769 ratings, while Klack averages 5.0 from 1 ratings.

### Do Sumaddle or Klack have ads?

Neither Sumaddle nor Klack shows ads.

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

Sumaddle ships an update every 3 weeks, and Klack every 2 months. Most recently, Sumaddle was updated on October 20, 2026 and Klack on October 10, 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.*