# Find the Difference! vs Rechenflow Mental Math

The clearest difference is in-app purchases: Rechenflow Mental Math at none against Find the Difference!'s 8. Rechenflow Mental Math also leads on update cadence (every 4 days vs every 3 months). Find the Difference!'s advantage is device support (5 vs 3). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Find the Difference! sells 8 one-off in-app purchases. Rechenflow Mental Math asks for nothing beyond the download.

Find the Difference! ships an update every 3 months, Rechenflow Mental Math every 4 days. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Find the Difference! | Rechenflow Mental Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (690 ratings)](https://appshunter.io/ios/app/find-the-difference/id587004699/reviews)** | — |
| Number of ratings | **690** | — |
| Positive reviews | 67.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 65 MB | 63 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac, Apple TV** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Leszek Szary](https://appshunter.io/developer/464282200) | [Christian Hermann](https://appshunter.io/developer/1882361365) |

## What reviewers say

### Find the Difference!

[App page](https://appshunter.io/ios/app/find-the-difference/id587004699)

Engage in a classic spot-the-difference puzzle game. Compare two nearly identical images and find the subtle variations. Enjoy a relaxing experience with beautiful photos and multiple game modes.

**Highlights:** Spot subtle image differences, Beautiful photos in categories, Timed and untimed game modes, Global leaderboards, Hundreds of puzzles, Suitable for all ages

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Food | Free | one-time |
| Flowers And Plants | Free | one-time |
| Landscapes | Free | one-time |
| Cities | Free | one-time |
| Winter | Free | one-time |
| Summer | Free | one-time |
| Autumn | Free | one-time |
| Hints | $0.99 | one-time |

**What reviewers like**

- 🎮 Engaging find-the-difference gameplay
- 💰 Free to play with optional paid categories
- 🧠 Good mental exercise for brain and eyes
- ⏱️ Flexible timer and unlimited mode options
- 🎨 Nice selection of pictures and categories

**What reviewers complain about**

- 😤 Difficulty level too high for some users
- 🔁 Repetitive images and limited puzzle variety
- ⏰ Timer creates stress instead of relaxation
- 🔍 Differences are too subtle or small
- 📱 Text is too small to read comfortably

**Reported bugs**

- App stays in center of computer screen
- Spelling mistake penalty causes restart
- Inconsistent difficulty across puzzles

**Requested features**

- New images and puzzles added regularly
- Help or hints button for difficult puzzles
- Display of missed differences after game completion
- Option to disable timer completely
- Background music available on iTunes


### Rechenflow Mental Math

[App page](https://appshunter.io/ios/app/rechenflow-mental-math/id6776089329)

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

**In-app purchases:** none


## Frequently asked questions

### Is Find the Difference! free?

Find the Difference! is free to download, with in-app purchases available.

### Is Rechenflow Mental Math free?

Rechenflow Mental Math is free to download, with no in-app purchases.

### Do Find the Difference! or Rechenflow Mental Math have ads?

Neither Find the Difference! nor Rechenflow Mental Math shows ads.

### Which is updated more often, Find the Difference! or Rechenflow Mental Math?

Find the Difference! ships an update every 3 months, and Rechenflow Mental Math every 4 days. Most recently, Find the Difference! was updated on October 10, 2026 and Rechenflow Mental Math on October 6, 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.*