# Mental Math vs XLms

The clearest difference is in-app purchases: XLms at none against Mental Math's 3. XLms also leads on iOS requirement (15.0 vs 18.0). Mental Math's advantage is update cadence (weekly vs fortnightly). On price, ads and device support there is nothing between them.

Both are free to download. Mental Math sells 3 in-app purchases, starting at $5.99 per month. XLms asks for nothing beyond the download.

Mental Math ships an update weekly, XLms fortnightly. Both last shipped on October 7, 2026.

## The numbers

| Metric | Mental Math | XLms |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (4 ratings)](https://appshunter.io/ios/app/mental-math-focus-trainer/id6757860865/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Freemium | — |
| Size | 11 MB | 71 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Denys Kotenko](https://appshunter.io/developer/1869320256) | [VAN TUE NGUYEN](https://appshunter.io/developer/1895938666) |

## What reviewers say

### Mental Math

[App page](https://appshunter.io/ios/app/mental-math-focus-trainer/id6757860865)

Enhance concentration and mental speed with daily mental math exercises. This app offers a minimalist approach to brain training, helping you prepare for deep work, studying, or important meetings. Track your progress and customize sessions to improve focus and cognitive clarity.

**Highlights:** Performance testing, Mental math training (add, subtract, multiply, divide), Customizable exercises, Progress tracking, Minimalist design, Focus improvement

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly: Focus & Mental Math | $5.99 | per month |
| Pro Yearly: Focus & Mental Math | $24.99 | per year |
| Pro Lifetime: Focus & Mental Math | $49.99 | one-time |


### XLms

[App page](https://appshunter.io/ios/app/xlms/id6764857003)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mental Math free?

Mental Math is free to download, with in-app purchases available.

### Is XLms free?

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

### Do Mental Math or XLms have ads?

Neither Mental Math nor XLms shows ads.

### Which is updated more often, Mental Math or XLms?

Mental Math ships an update weekly, and XLms fortnightly. Most recently, Mental Math was updated on October 7, 2026 and XLms on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*