# Mental Math Games vs Space Gate

The clearest difference is price: Mental Math Games at Free against Space Gate's $12.99. Mental Math Games also leads on ratings volume (1.2K vs 202). Space Gate's advantage is iOS requirement (16.0 vs 26.0). On rating, review sentiment, update cadence and ads there is nothing between them.

Mental Math Games is free to download; Space Gate costs $12.99 up front. Mental Math Games sells 3 in-app purchases, starting at $4.99 per month and Space Gate sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Mental Math Games against 4.8 for Space Gate. That said, the two scores are not equally well evidenced: Mental Math Games has 1.2K ratings behind it against 202, so its average is the more settled of the two. Written reviews are what separate them: 93% of Mental Math Games's written reviews are positive against 86% of Space Gate's.

Mental Math Games ships an update every 9 days, Space Gate weekly. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Mental Math Games | Space Gate |
| --- | --- | --- |
| Price | **Free** | $12.99 |
| Rating | [4.7 (1.2K ratings)](https://appshunter.io/ios/app/mental-math-games-numbio/id1551025256/reviews) | **[4.8 (202 ratings)](https://appshunter.io/ios/app/space-gate-ar-solar-system/id6474214531/reviews)** |
| Number of ratings | **1.2K** | 202 |
| Positive reviews | **93.4% of reviews** | 85.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 58 MB | 156 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Peter Schmidt](https://appshunter.io/developer/1551025258) | [Ali Samaei](https://appshunter.io/developer/1721049950) |

## What reviewers say

### Mental Math Games

[App page](https://appshunter.io/ios/app/mental-math-games-numbio/id1551025256)

Sharpen your mental math skills with this app offering a wide range of exercises from basic arithmetic to fractions and percentages. It features timed challenges, progress tracking, and customizable modes to suit all levels.

**Highlights:** Wide variety of math exercises, Timed challenges for speed, Progress tracking and high scores, Adjustable difficulty levels, Math tricks and shortcuts, Customizable trainer mode, Achievements and rewards

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $4.99 | per month |
| Pro Annual | $17.99 | per year |
| Pro Lifetime | $49.99 | one-time |

**What reviewers like**

- 🚀 Helpful for learning math
- 👍 Fun and engaging
- 👍 Clean and intuitive interface
- 🚀 Effective for improving mental math skills
- 👍 Great for all ages

**What reviewers complain about**

- 💰 Limited features in free version
- 🔒 Subscription required for full access
- 🐛 Occasional performance issues

**Reported bugs**

- Inconsistent scoring feedback
- Subscription issues with repeated charges

**Requested features**

- More advanced math operations (e.g., powers, roots)
- Customizable practice sessions
- Detailed performance analytics
- Ability to review past questions


### Space Gate

[App page](https://appshunter.io/ios/app/space-gate-ar-solar-system/id6474214531)

Explore the universe with interactive 3D and AR experiences of the solar system. Discover celestial bodies, engage with live astronomy news, and even interact with black holes. Tailored for learning and education.

**Highlights:** 3D and AR solar system exploration, Interactive black hole simulations, Live astronomy magazine, Educational celestial catalogs, Capture and save celestial snapshots

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $2.99 | per month |
| Annual Subscription | $6.99 | per year |
| Lifetime Subscription | $12.99 | one-time |

**What reviewers like**

- 🎨 Stunning 3D graphics and visual quality
- 🌍 Immersive AR experience for exploring planets
- 📚 Comprehensive educational content about space
- 🎓 Excellent tool for teachers and students
- 📸 Screenshot/snapshot capture functionality

**What reviewers complain about**

- 💰 Misleading free-to-play pricing model
- 🔒 Unexpected in-app purchase charges
- 🎮 Unintuitive navigation and UI
- 🐛 Orbital mechanics inaccuracies
- 🌙 Moon tidal locking not correctly simulated

**Reported bugs**

- Moon not tidally locked to Earth
- Moon orbiting Earth in wrong direction
- Planets orbiting sun in opposing/incorrect directions
- Uranus moons glitched
- Venus orbital speed faster than Mercury

**Requested features**

- Ability to set any planet as immobile center point
- More free planets without paywall
- Additional galaxies beyond solar system
- Toggle for planet/moon/star name labels
- Time-lapse function with variable speeds


## Frequently asked questions

### Is Mental Math Games free?

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

### Is Space Gate free?

Space Gate costs $12.99, and also offers in-app purchases.

### Which has better reviews, Mental Math Games or Space Gate?

Space Gate is rated higher. Mental Math Games averages 4.7 out of 5 from 1.2K ratings, while Space Gate averages 4.8 from 202 ratings.

### Do Mental Math Games or Space Gate have ads?

Neither Mental Math Games nor Space Gate shows ads.

### Which is updated more often, Mental Math Games or Space Gate?

Mental Math Games ships an update every 9 days, and Space Gate weekly. Most recently, Mental Math Games was updated on November 7, 2026 and Space Gate on November 4, 2026.

---

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