# CEH Ethical Hacker Exam Prep vs Ohmie

The clearest difference is in-app purchases: CEH Ethical Hacker Exam Prep at none against Ohmie's 4. CEH Ethical Hacker Exam Prep also leads on ads (none vs shown) and iOS requirement (15.0 vs 26.2). Ohmie's advantage is update cadence (every 3 days vs every 3 months) and chart position (#115 vs unranked). On price and device support there is nothing between them.

Both are free to download. Ohmie sells 4 in-app purchases, starting at $7.99 per month. CEH Ethical Hacker Exam Prep asks for nothing beyond the download.

CEH Ethical Hacker Exam Prep ships an update every 3 months, Ohmie every 3 days. Both last shipped on October 18, 2026.

## The numbers

| Metric | CEH Ethical Hacker Exam Prep | Ohmie |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (247 ratings)](https://appshunter.io/ios/app/ohmie-learn-electronics/id6779694265/reviews)** |
| Number of ratings | — | **247** |
| Positive reviews | — | 56.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | — | Freemium |
| Best chart rank | — | **#115** |
| Size | 26 MB | 731 MB |
| Requires iOS | **15.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Davy Raitt](https://appshunter.io/developer/1795318281) | [OHMIE LLC](https://appshunter.io/developer/1889012870) |

## What reviewers say

### CEH Ethical Hacker Exam Prep

[App page](https://appshunter.io/ios/app/ceh-ethical-hacker-exam-prep/id6757840726)

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

**In-app purchases:** none


### Ohmie

[App page](https://appshunter.io/ios/app/ohmie-learn-electronics/id6779694265)

**Currently charting:** #115 Top Grossing · Education (US App Store)

Learn electronics through engaging, game-like lessons and interactive circuit simulations. Master concepts from basic circuits to embedded systems and robotics with bite-sized daily practice. Progress is tracked on your device with no ads or accounts required.

**Highlights:** Live circuit simulations, Build schematics with real components, Interactive problem-solving lessons, Covers circuits, op-amps, embedded systems, and robotics, Gamified learning with XP and streaks, Progress saved locally, no account needed, Ad-free and tracking-free experience

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ohmie Pro | $7.99 | per month |
| Ohmie Pro Yearly Saver | $19.99 | per year |
| Ohmie Pro | $29.99 | per year |
| Ohmie Pro Annual | $29.99 | per year |


## Frequently asked questions

### Is CEH Ethical Hacker Exam Prep free?

CEH Ethical Hacker Exam Prep is free to download, with no in-app purchases.

### Is Ohmie free?

Ohmie is free to download, with in-app purchases available.

### Do CEH Ethical Hacker Exam Prep or Ohmie have ads?

Ohmie shows ads; CEH Ethical Hacker Exam Prep does not.

### Which is updated more often, CEH Ethical Hacker Exam Prep or Ohmie?

CEH Ethical Hacker Exam Prep ships an update every 3 months, and Ohmie every 3 days. Most recently, CEH Ethical Hacker Exam Prep was updated on October 18, 2026 and Ohmie on October 18, 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.*