# CCNA Preparation vs ShellRef

The clearest difference is price: CCNA Preparation at Free against ShellRef's $0.99. CCNA Preparation also leads on iOS requirement (12.0 vs 17.6). ShellRef's advantage is rating (5.0 vs 2.0) and ads (none vs shown). On ratings volume, in-app purchases and device support there is nothing between them.

CCNA Preparation is free to download; ShellRef costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ShellRef holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

CCNA Preparation ships an update every 9 months, ShellRef every 3 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | CCNA Preparation | ShellRef |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [2.0 (2 ratings)](https://appshunter.io/ios/app/ccna-preparation/id1598595408/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/shellref/id6759814118/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | **Every 3 weeks** |
| Monetization | **Ad-supported** | Paid |
| Size | 31 MB | 19 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ali Umer](https://appshunter.io/developer/1584417594) | [Andrew Bacon](https://appshunter.io/developer/1817531814) |

## What reviewers say

### CCNA Preparation

[App page](https://appshunter.io/ios/app/ccna-preparation/id1598595408)

Prepare for Cisco CCNA certification exams with a comprehensive set of practice questions, flashcards, and detailed explanations. Study offline without an internet connection to master the material needed to pass the Cisco CCNA 200-301 exam.

**Highlights:** Thousands of practice test questions, Flashcards with answers, Detailed answer explanations, Offline study mode, Covers CCNA 200-301 exam material

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

**In-app purchases:** none


### ShellRef

[App page](https://appshunter.io/ios/app/shellref/id6759814118)

This app provides an offline reference for Bash, Zsh, and terminal editors, mimicking a retro technical manual. It's ideal for quickly looking up commands, syntax, and scripting practices without needing an internet connection. Features include search, bookmarks, and customizable display themes.

**Highlights:** Offline Bash and Zsh reference, Terminal editor guides (Nano, Vim, Emacs), Quick command lookup, Searchable content, Customizable themes, Adjustable text size, Bookmarks

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CCNA Preparation free?

CCNA Preparation is free to download, with no in-app purchases.

### Is ShellRef free?

ShellRef costs $0.99, with no in-app purchases.

### Which has better reviews, CCNA Preparation or ShellRef?

ShellRef is rated higher. CCNA Preparation averages 2.0 out of 5 from 2 ratings, while ShellRef averages 5.0 from 1 ratings.

### Do CCNA Preparation or ShellRef have ads?

CCNA Preparation shows ads; ShellRef does not.

### Which is updated more often, CCNA Preparation or ShellRef?

CCNA Preparation ships an update every 9 months, and ShellRef every 3 weeks. Most recently, CCNA Preparation was updated on November 3, 2026 and ShellRef on October 31, 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.*