RegEx vs Learn Linux Step by Step
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RegEx
Master regular expressions with interactive lessons and real-world challenges. This app guides you from beginner to expert, offering hands-on exercises and a live tester to solidify your understanding of complex patterns.
- Step-by-step lessons
- Interactive exercises
- Live regex tester
- Comprehensive topics
- Real-world scenarios
- Progress tracking
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Unlock the full power of Regular Expressions with an interactive learning experience designed for all skill levels. Whether you're a beginner exploring basic patterns or an expert mastering advanced techniques, this app offers structured lessons, interactive exercises, and real-world challenges to build your regex skills. FEATURES: Step-by-Step Lessons – Progress through beginner, intermediate, advanced, and expert levels. Interactive Exercises – Test your skills with hands-on regex challenges. Live Regex Tester – Instantly see your patterns in action. Comprehensive Topics – Covers literals, character classes, quantifiers, lookaheads, recursion, and more. Real-World Scenarios – Apply regex to practical coding problems. Progress Tracking – Monitor your learning and advance through levels. Whether you're a developer, data analyst, or just curious about regex, this app makes learning easy, fun, and practical. Download now and start mastering regex today!
Learn Linux Step by Step
Master Linux commands and system administration through structured tutorials and interactive quizzes. This app offers a comprehensive learning path from beginner to advanced levels, available offline in multiple languages.
- Master Linux commands
- System administration learning
- Beginner to advanced curriculum
- Interactive quizzes
- Offline learning
- Available in 9 languages
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Master Linux from Zero to Advanced level. Learn Linux commands and system administration with our comprehensive tutorial app. Perfect for beginners starting their Linux journey and professionals preparing for certifications. Available in 9 Languages: • English, Dutch, French, German, Italian, Polish, Portuguese, Russian, and Spanish - study in your native language! What You'll Learn: • Linux fundamentals and command line basics • File system navigation and permissions • System administration and user management • Network configuration and security • Package management across distributions Complete Learning Experience: • 22 structured chapters from beginner to advanced • Step-by-step tutorials with clear explanations • Quick reference guide for daily use • 180+ interactive quiz questions User-Friendly Features: • Dark and light theme options • Offline learning - no internet required • Clean, distraction-free interface Perfect for: • Complete beginners with no prior experience • Students preparing for Linux certifications (LPIC, CompTIA Linux+) • System administrators expanding their skills • Developers working in Linux environments • IT professionals switching to Linux Start your Linux mastery journey today - from basic commands to advanced system administration!
Screenshots
Verdict
The clearest difference is in-app purchases: Learn Linux Step by Step at none against RegEx's 2. RegEx's advantage is ratings volume (23 vs 5). On price, rating, review sentiment and update cadence 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
Both are free to download. RegEx sells 2 one-off in-app purchases. Learn Linux Step by Step asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for RegEx against 5.0 for Learn Linux Step by Step. Both are backed by a comparable volume of ratings — 23 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
RegEx ships an update fortnightly, Learn Linux Step by Step monthly. The most recent releases landed on September 25, 2026 and August 27, 2026 respectively.
| Parameter | RegEx | Learn Linux Step by Step |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (23 ratings) | 5.0 (5 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 23 — better | 5 |
| Update frequency | Fortnightly — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 56 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Lee Clayberg | ALG Software Lab |
Customer experience
RegEx
Learn Linux Step by Step
In-app purchases
RegEx
- Complete the Course$4.99
- Advanced, Expert, Review$4.99
Learn Linux Step by Step
No in-app purchases





