# Linux & Security Essentials — Linux Essentials & LPIC-1 Prep > Linux Essentials & LPIC-1 Prep (iPhone/iPad app by CHOI SEONGMIN.) - Source: https://appshunter.io/ios/app/linux-and-security-essentials/id6785109684 (this page in markdown: same URL + `.md`) - Developer: [CHOI SEONGMIN](https://appshunter.io/developer/6772332527) - Category: Education - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 15.1 · 262 MB - Languages: American English, French (France), German (Germany), Japanese, Korean, Brazilian Portuguese, European Spanish - Released: 2026-07-01 - Data updated: 2026-11-10 ## What is Linux & Security Essentials? Keep studying across your phone, tablet and desktop. Use your phone on the move and a tablet or desktop when you want more room to study. Connect the same StudyCert account to continue your learning in the app and on the desktop web. Includes 1,400 practice questions across 4 exams. 1. Prepare for Linux Essentials (010-160) with 300 practice questions and 110 key terms. Study coverage · 5 areas: Topic 1: The Linux Community and a Career in Open Source · Topic 2: Finding Your Way on a Linux System · Topic 3: The Power of the Command Line · Topic 4: The Linux Operating System · Topic 5: Security and File Permissions Content languages: Korean, English, Japanese, Spanish, Brazilian Portuguese, French, German. Counts: English materials. 2. Prepare for LPIC-1 Exam 101 with 300 practice questions and 140 key terms. Study coverage · 4 areas: Topic 101: System Architecture · Topic 102: Linux Installation and Package Management · Topic 103: GNU and Unix Commands · Topic 104: Devices, Linux Filesystems, Filesystem Hierarchy Standard Content languages: English, Japanese, Spanish, Brazilian Portuguese. Counts: English materials. 3. Prepare for LPIC-1 Exam 102 with 300 practice questions and 124 key terms. Study coverage · 6 areas: Shells and Shell Scripting · User Interfaces and Desktops · Administrative Tasks · Essential System Services · Networking Fundamentals · Security Content languages: English, Japanese, Spanish, Brazilian Portuguese. Counts: English materials. 4. Prepare for LPI Security Essentials (020-100) with 500 practice questions and 110 key terms. Study materials are available in English, Korean and Japanese. 1. Learn the basic terms Use flashcards for meanings, exam context and selection criteria. Mark known and unfamiliar terms for focused review. 2. Practice and read the explanations Study by exam-specific set, domain or difficulty. Read answer and option explanations; use unfinished and wrong-answer filters, shuffle, a timer and session resume. Practice in sets of 50 questions for each exam. 3. Review mistakes Revisit bookmarks, recent errors and repeated mistakes. Use glossary reports, weak-area analysis and study history to plan revision. 4. Check readiness with a timed mock Use each exam’s settings below, then review results, domain scores and mistakes. Mock questions / time limit (minutes), by exam: 1: 40 / 60; 2: 60 / 90; 3: 60 / 90; 4: 40 / 60 Tools that fit your study routine Audio study and autoplay are optional. Listen to terms and meanings and adjust repeats and pauses. Continue your routine with a study calendar, weekly goals, reminders and themes. Content, features, languages and paid access are specific to each exam. Check the included content and price before purchasing. This is an independent study aid, not an official, affiliated or endorsed app of any exam administrator or certification body. Exam names and trademarks belong to their respective owners. ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Lifetime Access | $4.99 | one-time | ## Is Linux & Security Essentials safe? Not enough ratings yet to assess Linux & Security Essentials. ## Is Linux & Security Essentials legit? Linux & Security Essentials appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Linux & Security Essentials is 65 out of 100 points across 7 verification signals from App Store and developer data. ## Version history (last 5 releases) ### 1.0.13 — 2026-11-08 Improved the reliability of study progress and card saves. Save errors now provide clearer feedback and allow retrying. Improved restoring your previous study position when reopening the app. ### 1.0.12 — 2026-11-06 Added LPI Security Essentials (020-100) study content. Updated exam selection and individual access purchases. ### 1.0.11 — 2026-10-27 Improved the Review screen and domain-study flow. Improved how questions and explanations are displayed. ### 1.0.10 — 2026-10-21 Updated study screens and app presentation. ### 1.0.9 — 2026-10-08 Improved the study experience, voice playback, and app stability. ## Apps similar to Linux & Security Essentials | App | Rating | Price | Category | | --- | --- | --- | --- | | [Exam Pass LPI](https://appshunter.io/ios/app/exam-pass-lpi/id6787205305) | — | Free | Education | | [Linux Journey](https://appshunter.io/ios/app/linux-journey/id6770861660) | 5.0 (3) | Free | Education | | [LabEx – Linux & Cybersecurity](https://appshunter.io/ios/app/labex-linux-and-cybersecurity/id6765840991) | 4.6 (19) | Free | Education | | [ITIL 4 Foundation Exam 2026](https://appshunter.io/ios/app/itil-4-foundation-exam-2026/id1631738006) | 4.6 (269) | Free | Education | | [Learn Linux Step by Step](https://appshunter.io/ios/app/learn-linux-step-by-step/id6747142409) | 5.0 (6) | Free | Education | | [CompTIA Network+ Exam Training](https://appshunter.io/ios/app/comptia-network-plus-exam-training/id1501783324) | 4.8 (1,313) | Free | Education | ## More apps by CHOI SEONGMIN - [JLPT Japanese Vocab Kana-N1](https://appshunter.io/ios/app/jlpt-japanese-vocab-kana-n1/id6772332525) - [TOPIK Korean Vocab Hangul-L6](https://appshunter.io/ios/app/topik-korean-vocab-hangul-l6/id6772332806) - [TOEIC 토익단어장 영단어 0~800+](https://appshunter.io/ios/app/toeic-0800-plus/id6772332928) - [TOEIC英単語・単語帳 0~800点+](https://appshunter.io/ios/app/toeic-0800-plus/id6772333200) - [JLPT 일본어 단어장 히라가나-N1 무한회독](https://appshunter.io/ios/app/jlpt-n1/id6772333276) - [TOPIK韓国語単語帳 ハングル-6級](https://appshunter.io/ios/app/topik-6/id6772333392) All apps by CHOI SEONGMIN: https://appshunter.io/developer/6772332527 ## Related topics [linux essentials](https://appshunter.io/ios/topics/linux-essentials) · [ucertifyprep linux essentials](https://appshunter.io/ios/topics/ucertifyprep-linux-essentials) · [linux comandos](https://appshunter.io/ios/topics/linux-comandos) · [lfcs sysadmin exam prep](https://appshunter.io/ios/topics/lfcs-sysadmin-exam-prep) · [linux arch](https://appshunter.io/ios/topics/linux-arch) · [gnums](https://appshunter.io/ios/topics/gnums) · [linux practice](https://appshunter.io/ios/topics/linux-practice) · [learn linux pro](https://appshunter.io/ios/topics/learn-linux-pro) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-10.*