# Space Gate vs Grade Vault

The clearest difference is price: Grade Vault at Free against Space Gate's $12.99. Grade Vault also leads on in-app purchases (none vs 3) and review sentiment (100% vs 86%). Space Gate's advantage is update cadence (weekly vs every 6 weeks) and ratings volume (200 vs 4). On ads, device support and iOS requirement there is nothing between them.

Grade Vault is free to download; Space Gate costs $12.99 up front. Space Gate sells 3 in-app purchases, starting at $2.99 per month. Grade Vault asks for nothing beyond the download.

Grade Vault holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Space Gate has 200 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 86% of Space Gate's written reviews are positive against 100% of Grade Vault's.

Space Gate ships an update weekly, Grade Vault every 6 weeks. The most recent releases landed on August 1, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Space Gate | Grade Vault |
| --- | --- | --- |
| Price | $12.99 | **Free** |
| Rating | [4.8 (200 ratings)](https://appshunter.io/ios/app/space-gate-ar-solar-system/id6474214531/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/grade-vault/id6739982273/reviews)** |
| Number of ratings | **200** | 4 |
| Positive reviews | 85.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 156 MB | 4 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ali Samaei](https://appshunter.io/developer/1721049950) | [Asymmetric Enterprises LLC](https://appshunter.io/developer/1787798578) |

## What reviewers say

### 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


### Grade Vault

[App page](https://appshunter.io/ios/app/grade-vault/id6739982273)

Easily track academic performance, calculate GPAs, and monitor grades for individual classes or cumulative scores. The app offers customizable formulas, detailed insights, and absence logging, all secured with cloud sync and a privacy-first approach.

**Highlights:** Real-time GPA calculations, Customizable grade formulas, Detailed grade insights, Absence tracking, Cloud sync with iCloud, Privacy-first data handling

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Space Gate free?

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

### Is Grade Vault free?

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

### Which has better reviews, Space Gate or Grade Vault?

Grade Vault is rated higher. Space Gate averages 4.8 out of 5 from 200 ratings, while Grade Vault averages 5.0 from 4 ratings.

### Do Space Gate or Grade Vault have ads?

Neither Space Gate nor Grade Vault shows ads.

### Which is updated more often, Space Gate or Grade Vault?

Space Gate ships an update weekly, and Grade Vault every 6 weeks. Most recently, Space Gate was updated on August 1, 2026 and Grade Vault on June 1, 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.*