Comparison

CompTIA A+ & Security + Prep vs ReactorN

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

Head to head
About

CompTIA A+ & Security + Prep

Prepare for CompTIA certification exams with a personalized study plan. Practice with thousands of questions, track your progress, and compare your scores to the community average to boost your confidence and pass on your first attempt.

Highlights
  • Personalized study plan
  • 5000+ practice questions
  • Track strengths and weaknesses
  • Detailed test statistics
  • Compare scores to community average
  • Choose exam topics
Features
Read full description

Pass your CompTIA exams with flying colors! Boost your confidence in passing the first time with our mobile app and a personal study plan based on your current skill and requirements. Based in Downers Grove, Illinois, CompTIA issues vendor-neutral professional certifications in over 120 countries. The organization releases over 50 industry studies annually to track industry trends and changes. Over 2.2 million people have earned CompTIA certifications since the association was established. Key features: - Choose from different topics required to receive a certification - Practice with 5000+ questions - Track your strengths and weaknesses within Stats section of the app - Study detailed statistics of every test you take - Compare your score to the community average for almost any type of exam - - - - Purchases, subscriptions and terms You need to buy a lifetime access or subscribe to get access to all features, courses and questions. The cost of the purchase is charged to your iTunes account. Subscriptions are auto-renewable and are billed at the rate and period selected depending on the subscription plan. Users’ accounts are charged for auto-renewal within 24 hours prior to the end of the current period. Subscriptions can be managed and auto-renewal can be turned off in Account Settings in iTunes after the purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Terms of use: https://mastrapi.com/terms.html Privacy policy: https://mastrapi.com/policy.html

About

ReactorN

Features
Read full description

Reactor N is a free way for students and the nuclear-curious to explore the U.S. nuclear industry — built to help with your studies, coursework, and thesis. WHAT YOU CAN DO — ALL FREE • Browse all 94 U.S. nuclear reactors in one place — status, location, and key facts • Explore the energy-vs-AI-datacenter demand story reshaping the grid (the convergence layer) • Follow live regulatory activity (NRC + Federal Register) • Check energy market data (EIA) • Ask the AI copilot questions about the U.S. nuclear fleet • Prep for the reactor operator certification exam — flashcards, quizzes, and progress tracking BUILT FOR STUDENTS Whether you study nuclear engineering, energy, policy, or finance, Reactor N gives you real industry data instead of a textbook — useful for class projects, presentations, thesis research, and studying for the reactor operator (RO/SRO) licensing exam. Data is drawn from public sources (NRC, EIA, U.S. Federal Register) so you can trace and cite it. EVERYTHING IS FREE No account required. No subscription. No paywall. Nothing is sold in, through, or in connection with the app. Open the app and explore. ABOUT Reactor N is an independent product from OpenAgent. It aggregates publicly available information for educational and informational purposes only, and is not affiliated with or endorsed by the U.S. Nuclear Regulatory Commission, the U.S. Energy Information Administration, or any utility or reactor operator. All trademarks belong to their respective owners. Privacy Policy: https://openagent-legal.vercel.app/reactorn/privacy

Screenshots

CompTIA A+ & Security + Prep4 screens
ReactorN4 screens

Verdict

The call

The clearest difference is in-app purchases: ReactorN at none against CompTIA A+ & Security + Prep's 2. CompTIA A+ & Security + Prep's advantage is iOS requirement (13.0 vs 17.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. CompTIA A+ & Security + Prep sells 2 in-app purchases, starting at $24.99 per month. ReactorN asks for nothing beyond the download.

Scorecard2 real differences · 8 level
CompTIA A+ & Security + Prep versus ReactorN: the parameters behind the verdict, then further details
ParameterCompTIA A+ & Security + PrepReactorN
PriceFreeFree
Rating4.7 (2.2K ratings) — better—
Positive reviews31.0% of reviews—
Number of ratings2.2K — better—
Update frequencyEvery 5 weeks—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size36 MB5 MB
Age rating4+4+
DeveloperMastrAPITYH DANIEL MC LEAN

Bugs and requests

CompTIA A+ & Security + Prep

Reported bugs

4 issues
  • Questions referencing missing pictures
  • Incorrect answers and explanations
  • Subscription issues across devices
  • Reporting feature not functioning

Requested features

4 requests
  • Ability to target specific exam objectives
  • Dark mode option
  • More zoom options
  • Improved exam version tracking

ReactorN

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

CompTIA A+ & Security + Prep

Subscriptions1
  • Monthly with Trial7 Days trial$24.991 Month
One-time1
  • Lifetime$99.99
None

ReactorN

No in-app purchases

Questions

Is CompTIA A+ & Security + Prep free?
CompTIA A+ & Security + Prep is free to download, with in-app purchases available.
Is ReactorN free?
ReactorN is free to download, with no in-app purchases.
Do CompTIA A+ & Security + Prep or ReactorN have ads?
Neither CompTIA A+ & Security + Prep nor ReactorN shows ads.

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