# Subnet Driller vs Network Labs & Subnet Prep

The clearest difference is in-app purchases: Subnet Driller at none against Network Labs & Subnet Prep's 1. Network Labs & Subnet Prep's advantage is update cadence (fortnightly vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Network Labs & Subnet Prep sells 1 one-off in-app purchase. Subnet Driller asks for nothing beyond the download.

Subnet Driller ships an update every 6 weeks, Network Labs & Subnet Prep fortnightly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Subnet Driller | Network Labs & Subnet Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (10 ratings)](https://appshunter.io/ios/app/subnet-driller-ccna-practice/id6771981386/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 3 MB | 3 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tyler Dix](https://appshunter.io/developer/877363265) | [Shunya Iwasaki](https://appshunter.io/developer/1796095304) |

## What reviewers say

### Subnet Driller

[App page](https://appshunter.io/ios/app/subnet-driller-ccna-practice/id6771981386)

Practice subnetting for IT certifications like CCNA and Network+. This offline tool offers randomized questions with verified calculations and multiple answer formats. Track your progress with session and total counters, and receive optional daily practice reminders.

**Highlights:** Offline subnetting quizzes, Randomly generated questions, Multiple choice or written answers, Session and total progress tracking, Built-in block-size reference, Daily practice reminders

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

**In-app purchases:** none


### Network Labs & Subnet Prep

[App page](https://appshunter.io/ios/app/network-labs-and-subnet-prep/id6792362814)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CCNA Lifetime Access | $39.99 | one-time |


## Frequently asked questions

### Is Subnet Driller free?

Subnet Driller is free to download, with no in-app purchases.

### Is Network Labs & Subnet Prep free?

Network Labs & Subnet Prep is free to download, with in-app purchases available.

### Do Subnet Driller or Network Labs & Subnet Prep have ads?

Neither Subnet Driller nor Network Labs & Subnet Prep shows ads.

### Which is updated more often, Subnet Driller or Network Labs & Subnet Prep?

Subnet Driller ships an update every 6 weeks, and Network Labs & Subnet Prep fortnightly. Most recently, Subnet Driller was updated on October 24, 2026 and Network Labs & Subnet Prep on October 24, 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.*