# AC Method for Factoring PRO vs Space Gate

The clearest difference is price: AC Method for Factoring PRO at $1.99 against Space Gate's $12.99. AC Method for Factoring PRO also leads on in-app purchases (none vs 3). Space Gate's advantage is ratings volume (202 vs 6) and update cadence (weekly vs every 3 weeks). On rating, ads, device support and iOS requirement there is nothing between them.

AC Method for Factoring PRO costs $1.99 and Space Gate $12.99 up front. Space Gate sells 3 in-app purchases, starting at $2.99 per month. AC Method for Factoring PRO asks for nothing beyond the download.

AC Method for Factoring PRO holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Space Gate has 202 ratings behind it against 6, so its average is the more settled of the two.

AC Method for Factoring PRO ships an update every 3 weeks, Space Gate weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | AC Method for Factoring PRO | Space Gate |
| --- | --- | --- |
| Price | **$1.99** | $12.99 |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/ac-method-for-factoring-pro/id1500086470/reviews)** | [4.8 (202 ratings)](https://appshunter.io/ios/app/space-gate-ar-solar-system/id6474214531/reviews) |
| Number of ratings | 6 | **202** |
| Positive reviews | — | 85.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 179 MB | 156 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [Ali Samaei](https://appshunter.io/developer/1721049950) |

## What reviewers say

### AC Method for Factoring PRO

[App page](https://appshunter.io/ios/app/ac-method-for-factoring-pro/id1500086470)

This app helps users factor quadratic equations using the AC method. It requires entering three variables and provides a detailed, step-by-step solution. All calculations are saved in a history for easy access and sharing.

**Highlights:** AC method for factoring quadratics, Step-by-step solutions, Input history, Supports positive/negative numbers and decimals, Shareable final solutions, Input validation

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

**In-app purchases:** none


### 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 AC Method for Factoring PRO free?

AC Method for Factoring PRO costs $1.99, with no in-app purchases.

### Is Space Gate free?

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

### Which has better reviews, AC Method for Factoring PRO or Space Gate?

AC Method for Factoring PRO is rated higher. AC Method for Factoring PRO averages 5.0 out of 5 from 6 ratings, while Space Gate averages 4.8 from 202 ratings.

### Do AC Method for Factoring PRO or Space Gate have ads?

Neither AC Method for Factoring PRO nor Space Gate shows ads.

### Which is updated more often, AC Method for Factoring PRO or Space Gate?

AC Method for Factoring PRO ships an update every 3 weeks, and Space Gate weekly. Most recently, AC Method for Factoring PRO was updated on October 24, 2026 and Space Gate on October 24, 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.*