# Mechanical FE Prep vs PHS Mobile App

The clearest difference is in-app purchases: PHS Mobile App at none against Mechanical FE Prep's 1. PHS Mobile App also leads on iOS requirement (10.0 vs 12.0). Mechanical FE Prep's advantage is update cadence (every 5 days vs every 11 months). 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. PHS Mobile App asks for nothing beyond the download.

Mechanical FE Prep ships an update every 5 days, PHS Mobile App every 11 months. The most recent releases landed on September 29, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Mechanical FE Prep | PHS Mobile App |
| --- | --- | --- |
| 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 11 months |
| Monetization | Free with in-app purchases | — |
| Size | 67 MB | 43 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [EnginPeers LLC](https://appshunter.io/developer/1368846655) | [Livro Systems Incorporated](https://appshunter.io/developer/1896544025) |

## 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 |


### PHS Mobile App

[App page](https://appshunter.io/ios/app/phs-mobile-app/id1597038363)

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

**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 PHS Mobile App free?

PHS Mobile App is free to download, with no in-app purchases.

### Do Mechanical FE Prep or PHS Mobile App have ads?

Neither Mechanical FE Prep nor PHS Mobile App shows ads.

### Which is updated more often, Mechanical FE Prep or PHS Mobile App?

Mechanical FE Prep ships an update every 5 days, and PHS Mobile App every 11 months. Most recently, Mechanical FE Prep was updated on September 29, 2026 and PHS Mobile App on October 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.*