Javascript Learn & Code editor vs Protein Sequence Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Javascript Learn & Code editor
Learn JavaScript with interactive lessons, a live code editor, and guided paths. Test your knowledge with quizzes and challenges. Ideal for beginners seeking a solid foundation in coding.
- Beginner-focused JavaScript topics
- Live in-app code editor
- Structured learning paths
- Interactive quizzes and challenges
- Offline learning mode
- Regular content updates
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Discover the World of JavaScript with JSTopicsPro! Starting your journey into the realm of JavaScript? JSTopicsPro is crafted with beginners in mind, offering a comprehensive and interactive learning platform to guide you every step of the way. Key Features: Beginner-Focused Topics: Navigate through a library of handpicked topics, from the very basics of JavaScript to more advanced concepts, ensuring a solid foundation. Live Code Editor: Dive into coding right within the app! Experiment, practice, and see results in real-time, enhancing your understanding and retention. Guided Learning Paths: Follow structured paths tailored for newcomers, ensuring a smooth progression and building confidence as you advance. Interactive Quizzes & Challenges: Test your knowledge, reinforce your learning, and gain practical experience through engaging quizzes and coding challenges. Why Choose JSTopicsPro? Intuitive Design: A user-friendly interface designed to minimize distractions and maximize learning. Regular Updates: Stay updated with the latest in JavaScript, as our content is refreshed and expanded regularly. Offline Mode: Learn on-the-go, even without an internet connection. Premium Insights: Upgrade to Pro for deeper dives into topics, exclusive challenges, and an ad-free experience. Embark on your JavaScript adventure with JSTopicsPro. Whether you're taking your first coding steps or seeking to solidify your foundational knowledge, our app is here to guide, support, and inspire. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
Protein Sequence Viewer
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Protein Sequence Viewer is an iOS application designed for rapid retrieval of protein sequences (single-letter format) and lengths (amino acids) from UniProtKB/Swiss-Prot (reviewed entries). Simply enter a gene name or UniProt ID (Accession or Entry name) to access the data you need. Key Features: Gene name and UniProt ID search (Swiss-Prot reviewed entries only) Canonical sequence display with isoform switching via dropdown menu Downloadable offline databases for Human, Mouse, Rat, and Yeast—enabling searches without internet connectivity Streamlined interface focused on sequences and lengths One-tap sequence copying to clipboard Data Source: All sequence data is retrieved from UniProt.
Screenshots
Verdict
The clearest difference is in-app purchases: Protein Sequence Viewer at none against Javascript Learn & Code editor's 2. On price, update cadence, 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
Both are free to download. Javascript Learn & Code editor sells 2 in-app purchases, starting at $1.99 per month. Protein Sequence Viewer asks for nothing beyond the download.
Javascript Learn & Code editor ships an update every 3 days, Protein Sequence Viewer every 2 days. The most recent releases landed on September 27, 2026 and October 5, 2026 respectively.
| Parameter | Javascript Learn & Code editor | Protein Sequence Viewer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (7 ratings) — better | — |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 3 days | Every 2 days — 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 | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 45 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Saravanakumar GN | Kazunari Sasaki |
In-app purchases
Javascript Learn & Code editor
- Unlimited Access & Remove Ads$1.991 Month
- Lifetime premium$2.99
Protein Sequence Viewer
No in-app purchases
Questions
Is Javascript Learn & Code editor free?
Is Protein Sequence Viewer free?
Do Javascript Learn & Code editor or Protein Sequence Viewer have ads?
Which is updated more often, Javascript Learn & Code editor or Protein Sequence Viewer?
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