# 0h h1 vs Sumaddle

The clearest difference is monetization model: 0h h1 at free against Sumaddle's free with in-app purchases. 0h h1 also leads on iOS requirement (8.0 vs 16.0). Sumaddle's advantage is update cadence (every 3 weeks vs every 3 months) and rating (4.9 vs 4.7). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. 0h h1 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.

Sumaddle holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 299 and 767 respectively. Written reviews point the same way: 91% of 0h h1's written reviews are positive against 95% of Sumaddle's.

0h h1 ships an update every 3 months, Sumaddle every 3 weeks. The most recent releases landed on October 17, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 0h h1 | Sumaddle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (299 ratings)](https://appshunter.io/ios/app/0h-h1/id936504196/reviews) | **[4.9 (767 ratings)](https://appshunter.io/ios/app/sumaddle/id1552172214/reviews)** |
| Number of ratings | 299 | **767** |
| Positive reviews | 90.5% of reviews | **94.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 3 MB | 30 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Q42](https://appshunter.io/developer/385525157) | [Jonathan Buchanan](https://appshunter.io/developer/1540556286) |

## What reviewers say

### 0h h1

[App page](https://appshunter.io/ios/app/0h-h1/id936504196)

This logic puzzle game challenges you to fill a grid with red and blue tiles based on three simple rules. It offers unlimited puzzles across four grid sizes, providing a brain-teasing experience without ads or in-app purchases.

**Highlights:** Tile-based logic puzzles, Three simple rules, Unlimited puzzles, Four grid sizes (4x4 to 10x10), Tap to change tile color

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 0h h1 Supporter | $0.99 | one-time |

**What reviewers like**

- ✨ No ads or in-app purchases
- 🧠 Challenging yet simple gameplay
- 💡 Helpful hints provided
- 🧠 Great for focus and ADHD
- 👍 Long-term player satisfaction

**What reviewers complain about**

- ⚠️ Clipboard access prompt
- 🐛 Progress sometimes lost on closing app
- 🐛 Leaderboard scores appear impossible (negative times)
- 🐛 Hints sometimes incorrect or unhelpful
- 🐛 Start game over option missing

**Reported bugs**

- Progress forfeited when closing app
- Randomly asks permission to paste from clipboard
- Leaderboard scores with negative times
- Hints sometimes incorrect or unhelpful
- Error display not reliable after update

**Requested features**

- Continue game progress after closing app
- In-game stats (games played, best times, scores)
- Option to start game over
- Option to highlight and erase incorrect cells
- Customizable color palettes


### 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 0h h1 free?

0h h1 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, 0h h1 or Sumaddle?

Sumaddle is rated higher. 0h h1 averages 4.7 out of 5 from 299 ratings, while Sumaddle averages 4.9 from 767 ratings.

### Do 0h h1 or Sumaddle have ads?

Neither 0h h1 nor Sumaddle shows ads.

### Which is updated more often, 0h h1 or Sumaddle?

0h h1 ships an update every 3 months, and Sumaddle every 3 weeks. Most recently, 0h h1 was updated on October 17, 2026 and Sumaddle on October 16, 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.*