# One Stroke Brain Puzzle vs Spot the Differences 100

The clearest difference is in-app purchases: One Stroke Brain Puzzle at none against Spot the Differences 100's 1. Spot the Differences 100's advantage is update cadence (every 5 months vs every 55 months) and iOS requirement (10.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Spot the Differences 100 sells 1 one-off in-app purchase. One Stroke Brain Puzzle asks for nothing beyond the download.

One Stroke Brain Puzzle ships an update every 55 months, Spot the Differences 100 every 5 months. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | One Stroke Brain Puzzle | Spot the Differences 100 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (67 ratings)](https://appshunter.io/ios/app/spot-the-differences-100/id1300478937/reviews)** |
| Number of ratings | — | **67** |
| Positive reviews | — | 94.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 55 months | **Every 5 months** |
| Monetization | — | Free with in-app purchases |
| Size | 139 MB | 114 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZIROTEK Corp.](https://appshunter.io/developer/1209821727) | [CASUAL NINE SOCIEDAD LIMITADA](https://appshunter.io/developer/1177533487) |

## What reviewers say

### One Stroke Brain Puzzle

[App page](https://appshunter.io/ios/app/one-stroke-brain-puzzle/id1225019220)

**Features:** macOS Compatibility

**In-app purchases:** none


### Spot the Differences 100

[App page](https://appshunter.io/ios/app/spot-the-differences-100/id1300478937)

Challenge your observation skills by finding five subtle differences between two detailed images. With 100 increasingly difficult levels, this game offers hours of engaging fun for the whole family. Hints and solutions are available to help you progress.

**Highlights:** 100 challenging levels, Increasing difficulty, Hint and solution system, Family-friendly fun, Available on iPhone and iPad

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $1.99 | one-time |


## Frequently asked questions

### Is One Stroke Brain Puzzle free?

One Stroke Brain Puzzle is free to download, with no in-app purchases.

### Is Spot the Differences 100 free?

Spot the Differences 100 is free to download, with in-app purchases available.

### Do One Stroke Brain Puzzle or Spot the Differences 100 have ads?

Both One Stroke Brain Puzzle and Spot the Differences 100 show ads.

### Which is updated more often, One Stroke Brain Puzzle or Spot the Differences 100?

One Stroke Brain Puzzle ships an update every 55 months, and Spot the Differences 100 every 5 months. Most recently, One Stroke Brain Puzzle was updated on October 17, 2026 and Spot the Differences 100 on October 24, 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.*