# Sumaddle vs Stackdown

The clearest difference is review sentiment: Sumaddle at 95% against Stackdown's 0%. Sumaddle also leads on ads (none vs shown). Stackdown's advantage is update cadence (every 8 days vs every 3 weeks). On price, in-app purchases, monetization model and device support there is nothing between them.

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

Sumaddle ships an update every 3 weeks, Stackdown every 8 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sumaddle | Stackdown |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (769 ratings)](https://appshunter.io/ios/app/sumaddle/id1552172214/reviews)** | — |
| Number of ratings | **769** | — |
| Positive reviews | **94.9% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 31 MB | 13 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jonathan Buchanan](https://appshunter.io/developer/1540556286) | [Ikuhei Kure](https://appshunter.io/developer/1837581334) |

## 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


### Stackdown

[App page](https://appshunter.io/ios/app/stackdown-word-tile-game/id6800591949)

Uncover six five-letter words hidden within a stack of tiles. Strategically select tiles, revealing new possibilities with each word found. Enjoy a daily puzzle, a vast archive, and practice modes, all playable offline.

**Highlights:** Uncover hidden five-letter words, Strategic tile selection, Daily puzzles and archive, Offline play, Spoiler-free sharing, Practice modes

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |


## Frequently asked questions

### Is Sumaddle free?

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

### Is Stackdown free?

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

### Do Sumaddle or Stackdown have ads?

Stackdown shows ads; Sumaddle does not.

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

Sumaddle ships an update every 3 weeks, and Stackdown every 8 days. Most recently, Sumaddle was updated on October 24, 2026 and Stackdown on October 25, 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.*