Comparison

Ruby Compiler vs Etest CBT

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

Head to head
About

Ruby Compiler

Features
Read full description

Ruby Compiler is an Advanced IDE enabling you to compile Ruby Programs on your Mobile Phone for Free. It comes with a code editor with in-built syntax highlighting capabilities. Ruby Compiler is - Free with no hidden charges! - Ad-Free! - Available for all platforms! Features : 1. Compile & Run - Compile & Run Ruby Programs 2. Code Editing & Syntax Highlighting - Enables you to edit code and automatically detects and highlights syntax 3. Exercise Questions - Exercise questions to help you improve your knowledge 4. Programs with Code - All the general DSA programs with code 5. Fun Facts - Some fun facts about programming and computer science This app is brought to you by the company OnePercent, based in Bangalore, India. Website: www.OnePercent.club LinkedIn: www.Linkedin.Com/Company/Onepercent-Club/

About

Etest CBT

Features
Read full description

Practise for JAMB UTME, WAEC, NECO and Post UTME with 5,553 real past questions, timed CBT practice and a step-by-step explanation for every answer. The questions and explanations work offline, so you can study without data. WHAT YOU GET • 5,553 past questions across 11 subjects: English, Mathematics, Biology, Chemistry, Physics, Government, Economics, Commerce, Geography, Literature and CRS. • A worked explanation for every single answer, so you learn why an option is right, not just which one. • Timed computer-based test (CBT) practice that feels like the real exam. • Works offline: past questions and explanations are on your phone. NEW IN 2.3 • Full JAMB mock. Use of English plus 3 subjects, 60/40/40/40 questions in 2 hours, with an on-screen calculator, just like the UTME layout. • Daily challenge. 10 questions a day from your own subjects. Build a study streak and keep it going. • Weakest topics after every exam. See which topics cost you marks and drill them straight away. • Retry your mistakes. Every question you got wrong is saved, so you can try it again until you get it right. HOW TO PRACTISE • Exam Mode: timed papers with results at the end. • Study Mode: instant feedback after each answer, no timer. • Pick a year or mix every year. Choose JAMB UTME, Post-UTME or WASSCE/NECO questions. • Study guides for the syllabus topics, with key ideas, a worked example and common traps. • A study plan that counts down to your exam date and tells you what to revise each day. • AI tutor: type or snap a question and get a worked solution. The tutor needs an internet connection. PREMIUM Premium unlocks every study guide, your full study plan, unlimited explanations and tutor questions, and removes ads. • ₦2,500 a month or ₦19,900 a year. • Each plan starts with a 7-day free trial. • Payment is charged to your Apple ID when you confirm. The subscription renews automatically unless you cancel at least 24 hours before the period ends. Manage or cancel in Settings › Apple ID › Subscriptions. Used Etest CBT before premium arrived? You keep full access. Etest CBT is an independent study app. It is not affiliated with, or endorsed by, JAMB, WAEC or NECO. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://etestweb.com/jamb-cbt-privacy-policy

Screenshots

Ruby Compiler4 screens
Etest CBT4 screens

Verdict

The call

The clearest difference is ads: Ruby Compiler at none against Etest CBT's shown. Ruby Compiler also leads on iOS requirement (12.0 vs 15.0). Etest CBT's advantage is update cadence (fortnightly vs every 2 months). On price, in-app purchases and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Ruby Compiler ships an update every 2 months, Etest CBT fortnightly. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

Scorecard3 real differences Ā· 3 level
Ruby Compiler versus Etest CBT: the parameters behind the verdict, then further details
ParameterRuby CompilerEtest CBT
PriceFreeFree
Update frequencyEvery 2 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size28 MB34 MB
Age rating4+4+
DeveloperOnePercentjohn osakwe

In-app purchases

None

Ruby Compiler

No in-app purchases

None

Etest CBT

No in-app purchases

Questions

Is Ruby Compiler free?
Ruby Compiler is free to download, with no in-app purchases.
Is Etest CBT free?
Etest CBT is free to download, with no in-app purchases.
Do Ruby Compiler or Etest CBT have ads?
Etest CBT shows ads; Ruby Compiler does not.
Which is updated more often, Ruby Compiler or Etest CBT?
Ruby Compiler ships an update every 2 months, and Etest CBT fortnightly. Most recently, Ruby Compiler was updated on October 1, 2026 and Etest CBT on October 7, 2026.

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