# REO Mechanical Engineering vs ES Review

The clearest difference is update cadence: ES Review at monthly against REO Mechanical Engineering's every 21 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

REO Mechanical Engineering ships an update every 21 months, ES Review monthly. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | REO Mechanical Engineering | ES Review |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Monthly** |
| Size | 452 MB | 1 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Rex Banggawan](https://appshunter.io/developer/1516403954) | [Makarius Smart Innovations Inc.](https://appshunter.io/developer/1546085730) |

## What reviewers say

### REO Mechanical Engineering

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

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### ES Review

[App page](https://appshunter.io/ios/app/es-review/id6448111480)

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

**In-app purchases:** none


## Frequently asked questions

### Is REO Mechanical Engineering free?

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

### Is ES Review free?

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

### Do REO Mechanical Engineering or ES Review have ads?

Neither REO Mechanical Engineering nor ES Review shows ads.

### Which is updated more often, REO Mechanical Engineering or ES Review?

REO Mechanical Engineering ships an update every 21 months, and ES Review monthly. Most recently, REO Mechanical Engineering was updated on October 25, 2026 and ES Review on October 27, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*