# MathContest vs Spot the difference~

The clearest difference is price: Spot the difference~ at Free against MathContest's $0.99. Spot the difference~ also leads on device support. MathContest's advantage is iOS requirement (4.0 vs 16.0). On in-app purchases there is nothing between them.

Spot the difference~ is free to download; MathContest costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | MathContest | Spot the difference~ |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.6 (6.3K ratings)](https://appshunter.io/ios/app/spot-the-difference/id1350552865/reviews)** |
| Number of ratings | — | **6.3K** |
| Positive reviews | — | 69.0% of reviews |
| In-app purchases | No | No |
| Ads | — | Yes |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Ad-supported |
| Size | 1 MB | 141 MB |
| Requires iOS | **4.0** | 16.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [WebPlanet](https://appshunter.io/developer/370385942) | [心东 黄](https://appshunter.io/developer/1494079569) |

## What reviewers say

### MathContest

[App page](https://appshunter.io/ios/app/mathcontest/id398568998)

**In-app purchases:** none


### Spot the difference~

[App page](https://appshunter.io/ios/app/spot-the-difference/id1350552865)

Engage your observation skills by spotting subtle variations between two images. Enjoy a vast collection of over 1000 beautifully designed levels, accompanied by soothing background music. Your progress is automatically saved, allowing for seamless continuation of your puzzle-solving journey.

**Highlights:** Find differences between 2 pictures, 1000+ beautiful levels, Relaxing background music, Auto save game progress

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Challenging and fun
- 🎨 Beautiful and crisp images
- ⏱️ No timer, relaxing pace
- 🧠 Helps improve observation skills
- 🕹️ Great collection of mini-games

**What reviewers complain about**

- 💢 Too many ads, disruptive to gameplay
- 🙈 Inappropriate ad content
- 🔍 Need better instructions for some games
- 🔄 Scores/progress reset unexpectedly
- 🤔 Repetitive image themes (young women)

**Reported bugs**

- Game freezes/crashes on ads
- Ads block UI elements, can't close
- Minesweeper game gets stuck on levels

**Requested features**

- Paid version without ads
- Difficulty levels/options
- Magnifier tool for better visibility
- More diverse image themes
- Ability to save/restore progress


## Frequently asked questions

### Is MathContest free?

MathContest costs $0.99, with no in-app purchases.

### Is Spot the difference~ free?

Spot the difference~ 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.*