Enigma JS vs React Native Ninja
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Enigma JS
This app offers JavaScript quizzes covering common interview questions for web and mobile developers. It provides detailed explanations to help users learn and practice tricky language concepts and essential React/React Native knowledge.
- Common JavaScript interview questions
- React and React Native concepts
- Detailed explanations for each question
- Quizzes for beginners and experienced developers
- Practice tricky language parts
Read full descriptionHide full description
Enigma is a JavaScript quiz app featuring the most common interview questions. Here, you’ll find tricky parts of JavaScript language and the key concepts essential for React and React Native developers. Whether you are an experienced developer or a beginner, you'll find questions and explanations in this app that will help you learn and practice. Some quizzes are designed to understand the basics, while others targeting tricky parts of the Javascript language that we developers encounter time to time. - Refresh your knowledge by having quick quizzes anywhere during your day. - Stay up-to-date by learning and practicing tricky parts of the language. - For each question see detailed explanations that are designed to help you comprehend the concepts.
React Native Ninja
Read full descriptionHide full description
Learn React Native the fun and effective way! Whether you are preparing for interviews, learning React Native, or brushing up your TypeScript and CSS skills, this app makes it easy and engaging. Key Features: Interactive Quizzes: Test your knowledge across React Native, TypeScript, and CSS. Interview Prep Mode: Practice real-world interview questions and common gotchas. Gamified Learning: Earn badges, track streaks, and level up as you learn. Progress Tracking: Monitor accuracy, score, and category-based performance. Achievements and Feedback: Celebrate your progress and get instant insights after every quiz. Beautiful UI: Minimal, fast, and built with React Native. Why You Will Love It: Learn through play, not boring tutorials. Stay motivated with streaks, badges, and milestones. Perfect for beginners, interviewees, and developers improving their fundamentals. Start learning smarter today and become confident in React Native, one quiz at a time.
Screenshots
Verdict
The clearest difference is in-app purchases: React Native Ninja at none against Enigma JS's 1. React Native Ninja also leads on update cadence (every 5 months vs every 14 months). On price, ads, device support and iOS requirement 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. Enigma JS sells 1 one-off in-app purchase. React Native Ninja asks for nothing beyond the download.
Enigma JS ships an update every 14 months, React Native Ninja every 5 months. The most recent releases landed on September 8, 2026 and September 6, 2026 respectively.
| Parameter | Enigma JS | React Native Ninja |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 28.6% of reviews | — |
| Update frequency | Every 14 months | Every 5 months — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 59 MB | 40 MB |
| Age rating | 4+ | 12+ |
| Developer | Yesno Labs | FineTune (FZE) |
In-app purchases
Enigma JS
- Remove ads and unlock content$9.99
React Native Ninja
No in-app purchases
Questions
Is Enigma JS free?
Is React Native Ninja free?
Do Enigma JS or React Native Ninja have ads?
Which is updated more often, Enigma JS or React Native Ninja?
Other comparisons
