# Mechanical FE Prep vs REO Mechanical Engineering

The clearest difference is in-app purchases: REO Mechanical Engineering at none against Mechanical FE Prep's 1. Mechanical FE Prep's advantage is update cadence (every 5 days vs every 21 months) and iOS requirement (12.0 vs 14.0). On price, ads and device support there is nothing between them.

Both are free to download. Mechanical FE Prep sells 1 one-off in-app purchase. REO Mechanical Engineering asks for nothing beyond the download.

Mechanical FE Prep ships an update every 5 days, REO Mechanical Engineering every 21 months. The most recent releases landed on July 26, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Mechanical FE Prep | REO Mechanical Engineering |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mechanical-fe-prep/id1585519077/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 21 months |
| Monetization | Free with in-app purchases | — |
| Size | 67 MB | 452 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [EnginPeers LLC](https://appshunter.io/developer/1368846655) | [Rex Banggawan](https://appshunter.io/developer/1516403954) |

## What reviewers say

### Mechanical FE Prep

[App page](https://appshunter.io/ios/app/mechanical-fe-prep/id1585519077)

Prepare for Mechanical Engineering courses and the Fundamentals of Engineering exam with this comprehensive mobile study tool. Access over 15 engineering topics, practice exams, and detailed test analysis to master the material and pass with confidence.

**Highlights:** 15+ Engineering topics, Practice exams, Test analysis, Flashcards, Subject review, Exam prep

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

**In-app purchases (1)**

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


### REO Mechanical Engineering

[App page](https://appshunter.io/ios/app/reo-mechanical-engineering/id1616497471)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Mechanical FE Prep free?

Mechanical FE Prep is free to download, with in-app purchases available.

### Is REO Mechanical Engineering free?

REO Mechanical Engineering is free to download, with no in-app purchases.

### Do Mechanical FE Prep or REO Mechanical Engineering have ads?

Neither Mechanical FE Prep nor REO Mechanical Engineering shows ads.

### Which is updated more often, Mechanical FE Prep or REO Mechanical Engineering?

Mechanical FE Prep ships an update every 5 days, and REO Mechanical Engineering every 21 months. Most recently, Mechanical FE Prep was updated on July 26, 2026 and REO Mechanical Engineering on September 17, 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.*