# AI Study & Flashcards · Recall vs Space Gate

The clearest difference is price: AI Study & Flashcards · Recall at Free against Space Gate's $12.99. AI Study & Flashcards · Recall also leads on device support (4 vs 2). Space Gate's advantage is rating (4.8 vs 4.6). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

AI Study & Flashcards · Recall is free to download; Space Gate costs $12.99 up front. AI Study & Flashcards · Recall sells 7 in-app purchases, starting at $3.99 per 7 days 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.

Space Gate holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 253 and 202 respectively. Written reviews point the same way: 83% of AI Study & Flashcards · Recall's written reviews are positive against 86% of Space Gate's.

AI Study & Flashcards · Recall ships an update every 2 weeks, Space Gate weekly. Both last shipped on November 4, 2026.

## The numbers

| Metric | AI Study & Flashcards · Recall | Space Gate |
| --- | --- | --- |
| Price | **Free** | $12.99 |
| Rating | [4.6 (253 ratings)](https://appshunter.io/ios/app/ai-study-and-flashcards-recall/id6473355207/reviews) | **[4.8 (202 ratings)](https://appshunter.io/ios/app/space-gate-ar-solar-system/id6474214531/reviews)** |
| Number of ratings | **253** | 202 |
| Positive reviews | 83.2% of reviews | **85.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 54 MB | 156 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Vision Pro** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Giuseppe Lupo](https://appshunter.io/developer/1536647610) | [Ali Samaei](https://appshunter.io/developer/1721049950) |

## What reviewers say

### AI Study & Flashcards · Recall

[App page](https://appshunter.io/ios/app/ai-study-and-flashcards-recall/id6473355207)

Boost your memory retention with AI-powered summaries, quizzes, and audio playback. This app helps you understand and recall information more effectively through personalized learning paths and mnemonic techniques.

**Highlights:** AI-powered summarization, Interactive self-testing quizzes, Audio playback of information, Mnemonic device integration, User-generated summaries and ratings, Personalized learning paths

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Recall AI Premium | $3.99 | per 7 days |
| IIRC Premium | $3.99 | per month |
| IIRC Premium | $5.99 | per month |
| IIRC Gold (Yearly) | $39.99 | per year |
| IIRC Gold (Yearly) | $59.99 | per year |
| Lifetime IIRC Gold | $39.99 | one-time |
| Lifetime IIRC Gold | $79.99 | one-time |

**What reviewers like**

- 👍 Excellent app that summarizes articles well
- 🚀 Streamlined and intuitive user experience
- 💡 Innovative use of AI for learning and retention
- 🧠 Helpful for improving memory and focus
- 🎓 Great for students and lifelong learners

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 💰 Concerns about the 'free lifetime' offer being misleading
- 🔒 Accessibility issues with unlabeled buttons
- 🔍 Limited support for certain file types or websites

**Reported bugs**

- Inability to restore premium accounts after reinstallation
- Sharing functionality not working as expected
- Slow performance or long processing times for some tasks

**Requested features**

- Broader support for integrating with other apps and platforms
- Addition of audio/video summarization capabilities
- Customizable learning settings and personalization options
- Improved accessibility features for users with disabilities


### 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 AI Study & Flashcards · Recall free?

AI Study & Flashcards · Recall 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, AI Study & Flashcards · Recall or Space Gate?

Space Gate is rated higher. AI Study & Flashcards · Recall averages 4.6 out of 5 from 253 ratings, while Space Gate averages 4.8 from 202 ratings.

### Do AI Study & Flashcards · Recall or Space Gate have ads?

Neither AI Study & Flashcards · Recall nor Space Gate shows ads.

### Which is updated more often, AI Study & Flashcards · Recall or Space Gate?

AI Study & Flashcards · Recall ships an update every 2 weeks, and Space Gate weekly. Most recently, AI Study & Flashcards · Recall was updated on November 4, 2026 and Space Gate on November 4, 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.*