Computer Science Dictionary vs ShellRef
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Computer Science Dictionary
This app offers a comprehensive offline dictionary for computer science and engineering students, featuring over 4,200 terms, formulas, historical insights, and quizzes. Explore computer history, save favorite terms, and test your knowledge with interactive challenges.
- 4,200+ Computer Engineering terms
- Visual representations of formulas
- Comprehensive computer history timeline
- Challenging quizzes
- Autoplay audio definitions
- Community word contributions
- Save favorite terms
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Clear away your worries with a wealth of terms, formulas, historical insights, and quizzes designed for Computer Science and Engineering students. With over 4,200 Computer Engineering terms and a rich collection of visual representations of key formulas, this offline Computer Science Dictionary covers everything from basic concepts to advanced professional knowledge. It’s more than just a dictionary—it includes a comprehensive timeline of computer history, tracing innovations from the earliest devices to the present. Plus, it’s packed with challenging quizzes to sharpen your knowledge. This Offline Computer Science Engineering App includes categories like: • Software Engineering • Networking • Programming Languages • Information Storage and Retrieval • Architecture • Operating Systems • Computational Science • Intelligent Systems Key Features: • Timeline: Explore computer history from the abacus to modern-day advances. • Play Quiz: Challenge yourself with quizzes to reinforce your knowledge. • Autoplay: Listen and learn by having terms and definitions read to you. • Add Your words: Have something to add? Share it with the community! • Terms Bank : Save your frequently used terms for easy reference. Download this Computer Science Dictionary App and take your learning to the next level!
ShellRef
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.
- Offline Bash and Zsh reference
- Terminal editor guides (Nano, Vim, Emacs)
- Quick command lookup
- Searchable content
- Customizable themes
- Adjustable text size
- Bookmarks
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ShellRef is an offline reference for Bash, Zsh, and terminal editors, presented as a focused CRT console reference manual. It’s designed for quick lookup while you work—whether you’re writing your first shell script, checking quoting rules, reviewing Zsh behavior, or trying to remember a Vim command without opening a browser. The app includes reference sections for: • Bash fundamentals, control flow, functions, strings and arrays, file I/O, processes, and scripting practices • Zsh differences, globbing, arrays, and configuration • Common command-line tools for text processing, file operations, and system tasks • Terminal editors including Nano, Vim, and Emacs Topics are organized as short reference entries with examples, notes, warnings, and tables where they help clarify syntax and behavior. ShellRef also includes: • Offline access to the full reference library • Search across commands, topics, examples, and notes • My Quick Refs for saving frequently used entries • A CRT-inspired interface with White, Green, and Amber phosphor display modes • Optional scanlines and adjustable display glow • Reduced-effects controls for a cleaner reading experience • Adjustable text size for easier reading on iPhone and iPad ShellRef is intended for developers, sysadmins, students, and anyone who wants a readable shell reference without ads, accounts, or an internet connection.
Screenshots
Verdict
The clearest difference is price: Computer Science Dictionary at Free against ShellRef's $0.99. Computer Science Dictionary also leads on ratings volume (3 vs 1) and iOS requirement (13.0 vs 17.6). ShellRef's advantage is in-app purchases (none vs 1) and update cadence (every 3 weeks vs every 16 months). On ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Computer Science Dictionary is free to download; ShellRef costs $0.99 up front. Computer Science Dictionary sells 1 one-off in-app purchase. ShellRef asks for nothing beyond the download.
ShellRef holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
Computer Science Dictionary ships an update every 16 months, ShellRef every 3 weeks. The most recent releases landed on September 22, 2026 and October 2, 2026 respectively.
| Parameter | Computer Science Dictionary | ShellRef |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.7 (3 ratings) | 5.0 (1 ratings) — better |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 16 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 68 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Shital Gorasiya | Andrew Bacon |
Customer experience
Computer Science Dictionary
ShellRef
In-app purchases
Computer Science Dictionary
- Lifetime Purchase$6.99
ShellRef
No in-app purchases
Questions
Is Computer Science Dictionary free?
Is ShellRef free?
Which has better reviews, Computer Science Dictionary or ShellRef?
Do Computer Science Dictionary or ShellRef have ads?
Which is updated more often, Computer Science Dictionary or ShellRef?
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