Comparison

Linux & Security Essentials vs IaC Associate 004 Prep

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Linux & Security Essentials

Features
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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.

About

IaC Associate 004 Prep

Features
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Most Terraform Associate prep apps test whether you memorized a term. The real exam -- and the real job -- tests whether you can read a Terraform configuration, predict what terraform plan will actually change, and know what to do when State drifts from reality. IaC Associate 004 Prep is built around that gap. Instead of another stack of trivia flashcards, you work through real HCL configurations, structured plan output, state scenarios, module wiring, and CLI workflows -- the same skills the HashiCorp Certified: Terraform Associate (004) exam is actually testing, built for Terraform 1.12. ■ Read HCL, not just terms Work through real resource, variable, module, for_each, and lifecycle blocks. Find the syntax issue, predict the evaluated value, or spot the safer configuration -- not just "what does this word mean." ■ Understand every plan change A structured Plan Lab renders realistic terraform plan output -- create, update, destroy, replace, known-after-apply -- so you learn to spot an unexpected destroy before it happens, not just memorize the symbols. ■ Manage State safely Practice state mv, state rm, import, and moved blocks against a simulated State -- skills most prep apps skip entirely, and exactly what the exam (and real production Terraform) cares about. ■ Wire up modules, variables, and dependencies Trace how module inputs and outputs connect, work out variable precedence across defaults, tfvars, and CLI flags, and resolve dependency graphs -- including cycles. ■ Practice the real CLI workflow init, plan, apply, state, import, workspace, and more -- as ordering and troubleshooting exercises, not a list to memorize. ■ Study without distractions Study Mode blocks the apps you choose for a set time using Apple's Screen Time. Answer a few practice questions to take a break. It is included for everyone, and your choices stay on your device. ■ Know where you actually stand A Readiness Score weighted across HCL, Plan, State, Modules, Workflow, and HCP Terraform -- built from your accuracy on unseen questions, not just how many you've clicked through. Weak Area Review and Missed Questions pull together everything you got wrong, and the Final 24-Hour Cram gives you a last-day checklist and a 14-question final check. ■ One purchase. No subscription. Unlock everything -- every lab, every mock exam, the objective breakdown -- with a single purchase. No recurring billing, no account, no ads. All study data stays on your device; the only network use is the purchase itself. ■ 100 original questions, 10 hands-on labs 100 fixed practice questions (at least 10 per exam objective) plus HCL, CLI, Plan, State, Module, Variable, Dependency, Provider, HCP Terraform, and Troubleshooting labs -- written and reviewed specifically for the 004 exam, not recycled from an older version. This app is an independent study tool and is not affiliated with, endorsed by, or sponsored by HashiCorp, Inc. HashiCorp, Terraform, HCP Terraform, and related marks are trademarks or registered trademarks of HashiCorp, Inc. All practice questions, HCL examples, plan outputs, state simulations, command exercises, and explanations in this app are independently created for educational purposes. This app does not contain actual HashiCorp certification examination questions or unauthorized exam dumps. It does not execute Terraform, connect to cloud accounts, or provision infrastructure. Readiness scores are study indicators and do not guarantee examination results. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://common-legume-c99.notion.site/Terraform-Associate-004-Prep-Privacy-Policy-3a7fb55d2567812b84bed095d7f9e736

Screenshots

Linux & Security Essentials4 screens
IaC Associate 004 Prep4 screens

Verdict

The call

The clearest difference is update cadence: Linux & Security Essentials at every 6 days against IaC Associate 004 Prep's monthly. Linux & Security Essentials also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Linux & Security Essentials sells 8 one-off in-app purchases and IaC Associate 004 Prep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Linux & Security Essentials ships an update every 6 days, IaC Associate 004 Prep monthly. The most recent releases landed on November 13, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 4 level
Linux & Security Essentials versus IaC Associate 004 Prep: the parameters behind the verdict, then further details
ParameterLinux & Security EssentialsIaC Associate 004 Prep
PriceFreeFree
Update frequencyEvery 6 days — betterMonthly
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size266 MB3 MB
Age rating4+4+
DeveloperCHOI SEONGMINShunya Iwasaki

In-app purchases

8 purchases

Linux & Security Essentials

One-time8
  • LPI LPIC-1 102-500 Exa 추가구매 할인$1.69
  • LPI LPIC-1 101-500 Exa 추가구매 할인$1.69
  • LPI Linux Essentials 0 추가구매 할인$2.49
Show 5 more
  • LPI Security Essentials 할인$2.49
  • LPI LPIC-1 101-500 Exam Prep$3.49
  • LPI LPIC-1 102-500 Exam Prep$3.49
  • LPI Security Essentials 이용권$4.99
  • Lifetime Access$4.99
1 purchases

IaC Associate 004 Prep

One-time1
  • Lifetime Access$24.99

Questions

Is Linux & Security Essentials free?
Linux & Security Essentials is free to download, with in-app purchases available.
Is IaC Associate 004 Prep free?
IaC Associate 004 Prep is free to download, with in-app purchases available.
Do Linux & Security Essentials or IaC Associate 004 Prep have ads?
Neither Linux & Security Essentials nor IaC Associate 004 Prep shows ads.
Which is updated more often, Linux & Security Essentials or IaC Associate 004 Prep?
Linux & Security Essentials ships an update every 6 days, and IaC Associate 004 Prep monthly. Most recently, Linux & Security Essentials was updated on November 13, 2026 and IaC Associate 004 Prep on November 6, 2026.

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