# MotionGen vs EnginPrep

The clearest difference is rating: EnginPrep at 4.4 against MotionGen's 3.3. EnginPrep also leads on ratings volume (192 vs 16) and review sentiment (62% vs 50%). MotionGen's advantage is in-app purchases (none vs 1) and iOS requirement (7.0 vs 16.4). On price, ads and device support there is nothing between them.

Both are free to download. EnginPrep sells 1 one-off in-app purchase. MotionGen asks for nothing beyond the download.

EnginPrep holds the better App Store score, 4.4 against 3.3. That said, the two scores are not equally well evidenced: EnginPrep has 192 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 50% of MotionGen's written reviews are positive against 62% of EnginPrep's.

## The numbers

| Metric | MotionGen | EnginPrep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (16 ratings)](https://appshunter.io/ios/app/motiongen/id1065657088/reviews) | **[4.4 (192 ratings)](https://appshunter.io/ios/app/enginprep-fe-exam-prep/id1519694401/reviews)** |
| Number of ratings | 16 | **192** |
| Positive reviews | 50.0% of reviews | **61.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | **Free** | Freemium |
| Size | 9 MB | 45 MB |
| Requires iOS | **7.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mechanismic Inc.](https://appshunter.io/developer/1065657087) | [EnginPeers LLC](https://appshunter.io/developer/1368846655) |

## What reviewers say

### MotionGen

[App page](https://appshunter.io/ios/app/motiongen/id1065657088)

This app synthesizes and simulates planar four-bar linkages, solving motion generation problems for multiple positions. It allows users to design and simulate single degree of freedom linkages for robots and machines, incorporating various pivot and line constraints.

**Highlights:** Synthesizes planar four-bar linkages, Simulates linkage motion, Solves N-position motion generation problems, Incorporates pivot and line constraints, Designs single degree of freedom linkages

**Features:** macOS Compatibility

**In-app purchases:** none


### EnginPrep

[App page](https://appshunter.io/ios/app/enginprep-fe-exam-prep/id1519694401)

Prepare for the FE Civil and Mechanical exams with daily practice problems and comprehensive review lessons. Track your progress, identify weak spots, and take timed mock exams. Sync your learning across devices with a single account.

**Highlights:** Daily FE practice problems, Worked solutions for all problems, Topic-specific content review, Timed mock exams, Weak spot identification drills, Progress tracking and syncing, Cross-device compatibility

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Content | $4.99 | one-time |


## Frequently asked questions

### Is MotionGen free?

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

### Is EnginPrep free?

EnginPrep is free to download, with in-app purchases available.

### Which has better reviews, MotionGen or EnginPrep?

EnginPrep is rated higher. MotionGen averages 3.3 out of 5 from 16 ratings, while EnginPrep averages 4.4 from 192 ratings.

### Do MotionGen or EnginPrep have ads?

Neither MotionGen nor EnginPrep 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.*