# LM Space Constellations vs CompTIA A+ & Security + Prep

The clearest difference is in-app purchases: LM Space Constellations at none against CompTIA A+ & Security + Prep's 2. LM Space Constellations also leads on rating (5.0 vs 4.7). CompTIA A+ & Security + Prep's advantage is ratings volume (2.2K vs 9). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CompTIA A+ & Security + Prep sells 2 in-app purchases, starting at $24.99 per month. LM Space Constellations asks for nothing beyond the download.

LM Space Constellations holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: CompTIA A+ & Security + Prep has 2.2K ratings behind it against 9, so its average is the more settled of the two.

## The numbers

| Metric | LM Space Constellations | CompTIA A+ & Security + Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/lm-space-constellations/id1497788521/reviews)** | [4.7 (2.2K ratings)](https://appshunter.io/ios/app/comptia-a-plus-and-security-plus-prep/id1572747755/reviews) |
| Number of ratings | 9 | **2.2K** |
| Positive reviews | — | 31.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 469 MB | 36 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lockheed Martin](https://appshunter.io/developer/400687539) | [MastrAPI](https://appshunter.io/developer/1618627725) |

## What reviewers say

### LM Space Constellations

[App page](https://appshunter.io/ios/app/lm-space-constellations/id1497788521)

Explore the fundamentals of satellite mission architecture. Adjust key factors like altitude and satellite lifespan to observe their impact on global internet service delivery. Learn the basics of designing satellite constellations.

**Highlights:** Adjust satellite constellation altitude, Modify satellite lifespan, Control duration of global internet services, Observe factor effects on services, Learn mission architecture basics

**Features:** macOS Compatibility

**In-app purchases:** none


### CompTIA A+ & Security + Prep

[App page](https://appshunter.io/ios/app/comptia-a-plus-and-security-plus-prep/id1572747755)

Prepare for CompTIA certification exams with a personalized study plan. Practice with thousands of questions, track your progress, and compare your scores to the community average to boost your confidence and pass on your first attempt.

**Highlights:** Personalized study plan, 5000+ practice questions, Track strengths and weaknesses, Detailed test statistics, Compare scores to community average, Choose exam topics

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly with Trial | $24.99 | per month |
| Lifetime | $99.99 | one-time |

**What reviewers like**

- 🚀 Well-designed
- 👍 Good question quality
- 🚀 Helpful for exam preparation

**What reviewers complain about**

- 🐛 Buggy questions and errors
- 🐛 Reporting feature not working
- 🐛 Missing diagrams and images
- 🐛 Inconsistent question quality
- 🔒 Subscription issues and lack of transparency

**Reported bugs**

- Questions referencing missing pictures
- Incorrect answers and explanations
- Subscription issues across devices
- Reporting feature not functioning

**Requested features**

- Ability to target specific exam objectives
- Dark mode option
- More zoom options
- Improved exam version tracking


## Frequently asked questions

### Is LM Space Constellations free?

LM Space Constellations is free to download, with no in-app purchases.

### Is CompTIA A+ & Security + Prep free?

CompTIA A+ & Security + Prep is free to download, with in-app purchases available.

### Which has better reviews, LM Space Constellations or CompTIA A+ & Security + Prep?

LM Space Constellations is rated higher. LM Space Constellations averages 5.0 out of 5 from 9 ratings, while CompTIA A+ & Security + Prep averages 4.7 from 2.2K ratings.

### Do LM Space Constellations or CompTIA A+ & Security + Prep have ads?

Neither LM Space Constellations nor CompTIA A+ & Security + Prep shows ads.

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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.*