# Devmaxx vs System Design Refresher

The clearest difference is in-app purchases: System Design Refresher at none against Devmaxx's 2. Devmaxx's advantage is update cadence (every 2 weeks vs monthly) and iOS requirement (17.5 vs 26.2). On price, ads 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. System Design Refresher asks for nothing beyond the download.

Devmaxx ships an update every 2 weeks, System Design Refresher monthly. The most recent releases landed on September 26, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Devmaxx | System Design Refresher |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (495 ratings)](https://appshunter.io/ios/app/devmaxx/id6758278144/reviews)** | — |
| Number of ratings | **495** | — |
| Positive reviews | 20.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Subscription | — |
| Size | 26 MB | 18 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) | [Saurabh Sharma](https://appshunter.io/developer/1883599017) |

## 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 master essential skills for interviews and career growth. It offers clear explanations, linked resources, and a private community for learning and practice.

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

**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 |


### System Design Refresher

[App page](https://appshunter.io/ios/app/system-design-refresher/id6760277935)

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

**In-app purchases:** none


## Frequently asked questions

### Is Devmaxx free?

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

### Is System Design Refresher free?

System Design Refresher is free to download, with no in-app purchases.

### Do Devmaxx or System Design Refresher have ads?

Neither Devmaxx nor System Design Refresher shows ads.

### Which is updated more often, Devmaxx or System Design Refresher?

Devmaxx ships an update every 2 weeks, and System Design Refresher monthly. Most recently, Devmaxx was updated on September 26, 2026 and System Design Refresher on September 12, 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.*