# Subnetting Practice Master vs Learn Data Structures

The clearest difference is price: Learn Data Structures at Free against Subnetting Practice Master's $4.99. Subnetting Practice Master's advantage is in-app purchases (none vs 1) and update cadence (every 5 months vs every 16 months). On ads and device support there is nothing between them.

Learn Data Structures is free to download; Subnetting Practice Master costs $4.99 up front. Learn Data Structures sells 1 one-off in-app purchase. Subnetting Practice Master asks for nothing beyond the download.

Subnetting Practice Master ships an update every 5 months, Learn Data Structures every 16 months. The most recent releases landed on August 5, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Subnetting Practice Master | Learn Data Structures |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.5 (34 ratings)](https://appshunter.io/ios/app/subnetting-practice-master/id891180824/reviews)** | — |
| Number of ratings | **34** | — |
| Positive reviews | 91.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 16 months |
| Monetization | Paid | — |
| Best chart rank | **#186** | — |
| Size | 17 MB | 28 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [enrique caballero](https://appshunter.io/developer/891180827) | [Ghumman Tech LLC](https://appshunter.io/developer/1671347750) |

## What reviewers say

### Subnetting Practice Master

[App page](https://appshunter.io/ios/app/subnetting-practice-master/id891180824)

**Currently charting:** #186 Top Paid · Education (US App Store)

Master subnetting skills for network certifications with this app. It offers over 100 questions across three difficulty modes, a timer, and helpful tutorials. Track your progress and aim for a high score to prove your expertise.

**Highlights:** Over 100 questions, Numerical keyboard, Three training modes, 1-minute timer per question, Help button with powers and binary, Explanation for questions, Score system

**Features:** macOS Compatibility

**In-app purchases:** none


### Learn Data Structures

[App page](https://appshunter.io/ios/app/learn-data-structures/id6446444404)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $9.99 | one-time |


## Frequently asked questions

### Is Subnetting Practice Master free?

Subnetting Practice Master costs $4.99, with no in-app purchases.

### Is Learn Data Structures free?

Learn Data Structures is free to download, with in-app purchases available.

### Do Subnetting Practice Master or Learn Data Structures have ads?

Neither Subnetting Practice Master nor Learn Data Structures shows ads.

### Which is updated more often, Subnetting Practice Master or Learn Data Structures?

Subnetting Practice Master ships an update every 5 months, and Learn Data Structures every 16 months. Most recently, Subnetting Practice Master was updated on August 5, 2026 and Learn Data Structures on September 9, 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.*