# HamStudy.org vs AWS Machine Learning Prep PRO

The clearest difference is update cadence: HamStudy.org at every 3 weeks against AWS Machine Learning Prep PRO's every 55 months. HamStudy.org also leads on chart position (#4 vs unranked). AWS Machine Learning Prep PRO's advantage is price ($2.99 vs $3.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

HamStudy.org costs $3.99 and AWS Machine Learning Prep PRO $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

HamStudy.org ships an update every 3 weeks, AWS Machine Learning Prep PRO every 55 months. The most recent releases landed on November 12, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | HamStudy.org | AWS Machine Learning Prep PRO |
| --- | --- | --- |
| Price | $3.99 | **$2.99** |
| Rating | **[4.9 (2.7K ratings)](https://appshunter.io/ios/app/hamstudyorg/id1371288324/reviews)** | — |
| Number of ratings | **2.7K** | — |
| Positive reviews | 93.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 55 months |
| Monetization | Free | — |
| Best chart rank | **#4** | — |
| Size | 30 MB | 1 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Signal Stuff](https://appshunter.io/developer/1371288323) | [DjamgaTech Corp](https://appshunter.io/developer/969000181) |

## What reviewers say

### HamStudy.org

[App page](https://appshunter.io/ios/app/hamstudyorg/id1371288324)

**Currently charting:** #4 Top Paid · Education, #47 Top Paid (US App Store)

This app offers an intelligent study mode that tracks your progress and focuses on areas where you struggle. It allows you to tailor your study to specific chapters and topics from license manuals, with explanations for difficult questions. Practice exams are also available.

**Highlights:** Intelligent study algorithms, Vetted user-submitted explanations, Infinite practice exams, Study all US Amateur Radio question pools, International question pools, Multi-user support, Cross-device progress sync

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Great study tool
- 👍 Easy to use
- 🚀 Efficient way to prepare for exams
- 🚀 Comprehensive coverage of exam material
- 👍 Helpful explanations and hints

**What reviewers complain about**

- 🐛 Occasional app freezes
- 👎 Some explanations could be clearer
- 🔋 Battery drain when using app extensively

**Reported bugs**

- Email support not working
- Occasional freezing or crashing

**Requested features**

- Dark mode option
- Ability to clear test history
- More detailed performance analytics
- Spell out acronyms and define technical terms


### AWS Machine Learning Prep PRO

[App page](https://appshunter.io/ios/app/aws-machine-learning-prep-pro/id1611045854)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is HamStudy.org free?

HamStudy.org costs $3.99, with no in-app purchases.

### Is AWS Machine Learning Prep PRO free?

AWS Machine Learning Prep PRO costs $2.99, with no in-app purchases.

### Do HamStudy.org or AWS Machine Learning Prep PRO have ads?

Neither HamStudy.org nor AWS Machine Learning Prep PRO shows ads.

### Which is updated more often, HamStudy.org or AWS Machine Learning Prep PRO?

HamStudy.org ships an update every 3 weeks, and AWS Machine Learning Prep PRO every 55 months. Most recently, HamStudy.org was updated on November 12, 2026 and AWS Machine Learning Prep PRO on November 3, 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.*