# Puzzle IO vs Steekje Los

The clearest difference is in-app purchases: Steekje Los at none against Puzzle IO's 1. Puzzle IO's advantage is device support. On price and iOS requirement there is nothing between them.

Both are free to download. Puzzle IO sells 1 one-off in-app purchase. Steekje Los asks for nothing beyond the download.

## The numbers

| Metric | Puzzle IO | Steekje Los |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (362 ratings)](https://appshunter.io/ios/app/puzzle-io-binary-sudoku/id1145765167/reviews)** | — |
| Number of ratings | **362** | — |
| Positive reviews | 74.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | — |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 107 MB | 93 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [99 Up Games](https://appshunter.io/developer/567396068) | [Stichting De Bagagedrager](https://appshunter.io/developer/1507370718) |

## What reviewers say

### Puzzle IO

[App page](https://appshunter.io/ios/app/puzzle-io-binary-sudoku/id1145765167)

Experience a modern, fast-paced logic puzzle game based on binary Sudoku. Fill grids with 0s and 1s following specific rules, earn bonuses with a smart point system, and compete globally. Offers endless challenges across six difficulty levels.

**Highlights:** Fill 10x10 grids with 0s and 1s, Equal 0s and 1s per row/column, No three identical numbers in a row, Smart point system with bonuses, Time-based multipliers for higher scores, Game Center support and global leaderboards, Six difficulty levels, Unlimited unique puzzles

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |

**What reviewers like**

- 👍 Simple mechanics
- 👍 Easy to play one-handed
- 👍 Different difficulty modes
- 👍 Guess function if you're not sure of your options
- 👍 Fun and requires the right level of brain power while not being too difficult

**What reviewers complain about**

- 🐛 Hint function is not very useful
- 🐛 'Watch video' for hints doesn't work on the paid ad-free version
- 🔋 High battery consumption
- 💸 Too many ads and long ad breaks
- 🐛 Incorrect error detection on completed rows/columns

**Reported bugs**

- Incorrect error detection on completed rows/columns
- Frequent crashes and bugs
- Game sometimes freezes or becomes unresponsive
- Ads not loading properly, preventing gameplay

**Requested features**

- Dark mode option
- Better hint system that explains the logic
- Option to turn off row/column completion notifications
- More challenging puzzle levels
- Ability to create and save custom puzzles


### Steekje Los

[App page](https://appshunter.io/ios/app/steekje-los/id6451435477)

**In-app purchases:** none


## Frequently asked questions

### Is Puzzle IO free?

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

### Is Steekje Los free?

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

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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.*