# Devmaxx vs Ohmie

The clearest difference is monetization model: Ohmie at free with in-app purchases against Devmaxx's subscription. Ohmie also leads on review sentiment (48% vs 18%) and update cadence (every 3 days vs every 11 days). Devmaxx's advantage is ads (none vs shown) and iOS requirement (17.5 vs 26.2). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. Devmaxx sells 2 in-app purchases, starting at $8.99 per month and Ohmie sells 5 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Ohmie holds the better App Store score, 4.5 against 4.3. Both are backed by a comparable volume of ratings — 545 and 376 respectively. Written reviews point the same way: 18% of Devmaxx's written reviews are positive against 48% of Ohmie's.

Devmaxx ships an update every 11 days, Ohmie every 3 days. Both last shipped on November 13, 2026.

## The numbers

| Metric | Devmaxx | Ohmie |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (545 ratings)](https://appshunter.io/ios/app/devmaxx/id6758278144/reviews) | **[4.5 (376 ratings)](https://appshunter.io/ios/app/ohmie-learn-electronics/id6779694265/reviews)** |
| Number of ratings | **545** | 376 |
| Positive reviews | 17.5% of reviews | **48.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 11 days | **Every 3 days** |
| Monetization | Subscription | **Free with in-app purchases** |
| Best chart rank | — | **#64** |
| Size | 40 MB | 707 MB |
| Requires iOS | **17.5** | 26.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Arjay McCandless LLC](https://appshunter.io/developer/1871931520) | [OHMIE LLC](https://appshunter.io/developer/1889012870) |

## What reviewers say

### Devmaxx

[App page](https://appshunter.io/ios/app/devmaxx/id6758278144)

This app provides a daily system design question to help software engineers learn and practice essential skills for interviews and career growth. It offers clear explanations, linked resources, progress tracking, and a community forum for collaborative learning.

**Highlights:** Daily system design questions, Clear explanations and answer breakdowns, Linked learning resources, Access to previous questions, Progress tracking, Private developer community, Pod-based learning and competition

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Devmaxx Subscription | $8.99 | per month |
| Annual Devmaxx Subscription | $59.99 | per year |


### Ohmie

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

**Currently charting:** #64 Top Free · Education, #185 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 programming with a structured curriculum and gamified progress tracking.  The app offers hints and tracks your learning journey across devices.

**Highlights:** Interactive circuit simulations, Game-like lessons, Learn electronics, physics, and programming, Gamified progress tracking (XP, badges, streaks), Ask Ohmie for hints, Cross-device progress syncing

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ohmie Pro | $7.99 | per month |
| Ohmie Pro Yearly Saver | $19.99 | per year |
| Ohmie Pro Annual | $29.99 | per year |
| Ohmie Pro | $29.99 | per year |
| Ohmie Pro | $49.99 | per year |


## Frequently asked questions

### Is Devmaxx free?

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

### Is Ohmie free?

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

### Which has better reviews, Devmaxx or Ohmie?

Ohmie is rated higher. Devmaxx averages 4.3 out of 5 from 545 ratings, while Ohmie averages 4.5 from 376 ratings.

### Do Devmaxx or Ohmie have ads?

Ohmie shows ads; Devmaxx does not.

### Which is updated more often, Devmaxx or Ohmie?

Devmaxx ships an update every 11 days, and Ohmie every 3 days. Most recently, Devmaxx was updated on November 13, 2026 and Ohmie on November 13, 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.*