# Orb Galaxy Sort vs MentalMather

Orb Galaxy Sort and MentalMather are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 12, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Orb Galaxy Sort | MentalMather |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mentalmather/id6760533092/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | — | Ad-supported |
| Size | 113 MB | 55 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Muhammad Talseem](https://appshunter.io/developer/1871192120) | [Cortex Apps llc](https://appshunter.io/developer/1884834782) |

## What reviewers say

### Orb Galaxy Sort

[App page](https://appshunter.io/ios/app/orb-galaxy-sort/id6758506645)

**Features:** macOS Compatibility

**In-app purchases:** none


### MentalMather

[App page](https://appshunter.io/ios/app/mentalmather/id6760533092)

Track your daily cognitive sharpness with mental math exercises. This app measures your brain's current performance against your personal baseline, not to teach math but to gauge your mental acuity.

**Highlights:** Daily Sharpness Score, Personalized baseline comparison, Guided and Quick Play modes, Shareable challenges with friends, Detailed session history and analytics, Offline functionality

**In-app purchases:** none


## Frequently asked questions

### Is Orb Galaxy Sort free?

Orb Galaxy Sort is free to download, with no in-app purchases.

### Is MentalMather free?

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

### Do Orb Galaxy Sort or MentalMather have ads?

Both Orb Galaxy Sort and MentalMather show ads.

### Which is updated more often, Orb Galaxy Sort or MentalMather?

Orb Galaxy Sort ships an update every 3 weeks, and MentalMather every 3 weeks. Most recently, Orb Galaxy Sort was updated on October 12, 2026 and MentalMather on October 5, 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.*