# AWS vs Mechanical Engineering Lab

The clearest difference is update cadence: AWS at every 9 days against Mechanical Engineering Lab's monthly. AWS also leads on iOS requirement (8.0 vs 17.0). Mechanical Engineering Lab's advantage is price ($12.99 vs $15.99). On ads, in-app purchases and device support there is nothing between them.

AWS costs $15.99 and Mechanical Engineering Lab $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

AWS ships an update every 9 days, Mechanical Engineering Lab monthly. The most recent releases landed on October 14, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | AWS | Mechanical Engineering Lab |
| --- | --- | --- |
| Price | $15.99 | **$12.99** |
| Rating | **[1.3 (9 ratings)](https://appshunter.io/ios/app/aws-cwi-examguider/id1327685737/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Monetization | Paid | — |
| Size | 18 MB | 5 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nguyen Hieu](https://appshunter.io/developer/1323491316) | [Yuhsiu Lai](https://appshunter.io/developer/433114647) |

## What reviewers say

### AWS

[App page](https://appshunter.io/ios/app/aws-cwi-examguider/id1327685737)

Prepare for your Certified Welding Inspector exam with over 1000 practice questions covering all essential topics. This offline app offers a one-time purchase for lifetime access, making it a convenient study tool.

**Highlights:** Over 1000 practice questions, Covers all exam sections, Offline functionality, One-time payment, Lifetime access

**Features:** macOS Compatibility

**In-app purchases:** none


### Mechanical Engineering Lab

[App page](https://appshunter.io/ios/app/mechanical-engineering-lab/id6766063704)

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

**In-app purchases:** none


## Frequently asked questions

### Is AWS free?

AWS costs $15.99, with no in-app purchases.

### Is Mechanical Engineering Lab free?

Mechanical Engineering Lab costs $12.99, with no in-app purchases.

### Do AWS or Mechanical Engineering Lab have ads?

Neither AWS nor Mechanical Engineering Lab shows ads.

### Which is updated more often, AWS or Mechanical Engineering Lab?

AWS ships an update every 9 days, and Mechanical Engineering Lab monthly. Most recently, AWS was updated on October 14, 2026 and Mechanical Engineering Lab 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.*