# Mathbrain by XGameDev.com vs Stackcol

The clearest difference is rating: Stackcol at 5.0 against Mathbrain by XGameDev.com's 2.0. Stackcol also leads on in-app purchases (none vs 5) and update cadence (every 8 months vs every 29 months). Mathbrain by XGameDev.com's advantage is iOS requirement (12.0 vs 15.5). On price, ratings volume, ads and monetization model there is nothing between them.

Both are free to download. Mathbrain by XGameDev.com sells 5 one-off in-app purchases. Stackcol asks for nothing beyond the download.

Stackcol holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Mathbrain by XGameDev.com ships an update every 29 months, Stackcol every 8 months. The most recent releases landed on September 23, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Mathbrain by XGameDev.com | Stackcol |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/mathbrain-by-xgamedevcom/id1066287672/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/stackcol/id6444030849/reviews)** |
| Number of ratings | 1 | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 8 months** |
| Monetization | Free | Free |
| Size | 47 MB | 44 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [XGameDev Pty Ltd](https://appshunter.io/developer/669021543) | [Chi Chen Lee](https://appshunter.io/developer/1548524457) |

## What reviewers say

### Mathbrain by XGameDev.com

[App page](https://appshunter.io/ios/app/mathbrain-by-xgamedevcom/id1066287672)

Engage your mind with arithmetic challenges in this puzzle game. Solve over 200 math problems using operators and practice order of operations. Offers campaign and drill modes for skill improvement.

**Highlights:** Solve arithmetic problems, Practice order of operations (BODMAS), Campaign Mode with predefined levels, Drill Mode for customizable difficulty, One-hand, one-touch controls, Gain real-world math skills

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy 10 Hints | $0.99 | one-time |
| Buy 50 Hints | $2.99 | one-time |
| Buy 100 hints | $4.99 | one-time |
| Buy 250 hints | $9.99 | one-time |
| Buy 500 hints | $14.99 | one-time |


### Stackcol

[App page](https://appshunter.io/ios/app/stackcol/id6444030849)

A relaxing card game focused on matching colors. Enjoy a chill and fun experience with simple gameplay mechanics. Perfect for unwinding.

**Highlights:** Color matching gameplay, Relaxing atmosphere, Chill gameplay, Card game mechanics, Simple to enjoy

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mathbrain by XGameDev.com free?

Mathbrain by XGameDev.com is free to download, with in-app purchases available.

### Is Stackcol free?

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

### Which has better reviews, Mathbrain by XGameDev.com or Stackcol?

Stackcol is rated higher. Mathbrain by XGameDev.com averages 2.0 out of 5 from 1 ratings, while Stackcol averages 5.0 from 2 ratings.

### Do Mathbrain by XGameDev.com or Stackcol have ads?

Neither Mathbrain by XGameDev.com nor Stackcol shows ads.

### Which is updated more often, Mathbrain by XGameDev.com or Stackcol?

Mathbrain by XGameDev.com ships an update every 29 months, and Stackcol every 8 months. Most recently, Mathbrain by XGameDev.com was updated on September 23, 2026 and Stackcol on September 19, 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.*