Learn JavaScript vs Orbit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Learn JavaScript
Master the language of the web with interactive lessons, quizzes, and a built-in code playground. Build a consistent learning habit with daily challenges and track your progress with an achievement system. Learn JavaScript effectively, from beginner to advanced.
- Interactive lessons
- Quizzes with instant feedback
- Built-in code playground
- Daily coding challenges
- Achievement system
- Dark mode
- Multi-language support
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Master modern JavaScript programming from syntax foundations to advanced ES6+, asynchronous async/await, and DOM manipulation with Learn JavaScript Coding Offline! The complete hands-on JavaScript academy designed to teach you full web scripting without an internet connection. Whether you are learning to code from scratch, preparing for web development interviews, or building dynamic client-side applications, this app combines structured roadmap lessons, interactive quizzes, and a built-in on-device JavaScript execution engine. COMPLETE MODERN JAVASCRIPT CURRICULUM: - Core Language Fundamentals: Variables (let, const), primitive types, operators, conditionals (if/else, switch), loops (for, while, for...of). - Functions & Lexical Scope: Arrow functions, parameter defaults, closures, first-class functions, recursion, and variable hoisting. - Modern ES6+ Features: Object and array destructuring, spread/rest operators, template literals, optional chaining, and nullish coalescing. - Arrays & Objects Mastery: Methods including map, filter, reduce, find, some, every, Object.entries, and deep copying techniques. - Asynchronous JavaScript & APIs: Promises, async/await syntax, event loop, microtask queue, try/catch error handling, and Fetch API patterns. - DOM Manipulation & Events: Selecting HTML nodes, dynamic class toggling, listening to click/input events, event bubbling, and dynamic UI rendering. - Interactive On-Device Code Engine: Write, execute, and debug real JavaScript code safely inside the app with instant console output. - 100% Offline Coding: Learn syntax, review cheat sheets, and run scripts anytime on flights or commutes without Wi-Fi. COMMITTED TO PRIVACY: No data tracking, no mandatory subscriptions, and zero internet permissions required. Download Learn JavaScript Coding Offline today and write modern JavaScript like a pro!
Orbit
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Orbit is a spaced-repetition flashcard app built around one idea: memories are satellites, and reviewing them is what keeps them from losing altitude. THE ENGINE Orbit is scheduled by FSRS (Free Spaced Repetition Scheduler) — the same open-source algorithm that's become the standard among serious Anki users because it predicts your memory more accurately than older SM-2-style algorithms. Fewer wasted reviews, fewer forgotten cards. WHAT YOU GET • Anki-style notes and cards, including cloze deletion and rich text (bold, italic, code, fenced blocks) • Image occlusion — turn any photo, diagram, or map into a set of flashcards by drawing masks directly over the parts you want to test yourself on • A full stats suite: retention over time, forecasted review load, a knowledge heatmap, leech detection for cards you keep forgetting, and deadline readiness for exams or deadlines • Streaks, XP, and banked streak freezes that reward consistency without shaming you for a missed day • Text-to-speech playback for hands-free review • A free starter deck — Flags of the World, 197 cards — so there's something worth reviewing the moment you install PRIVATE BY DEFAULT Orbit makes no network calls for your data. Everything — every card, every review, every stat — lives in a local database on your device. Nothing is uploaded, nothing is sold, there are no ads, and there's no account to create. Delete anything, anytime. BUILT FOR DAILY USE Grading a card is a single tap with haptic feedback. The next card is pre-rendered before you finish grading the current one, so review sessions stay fast even for long backlogs. Dark mode is a first-class experience, not an afterthought. Whether you're relearning a language, studying for boards, or just trying to remember more of what you read, Orbit is built to keep it in orbit.
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Verdict
The clearest difference is ads: Orbit at none against Learn JavaScript's shown. Learn JavaScript's advantage is device support (3 vs 1). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Learn JavaScript | Orbit |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months | — |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 122 MB | 56 MB |
| Age rating | 4+ | 4+ |
| Developer | Nagy Solaiman | Joshua Fonseca |
In-app purchases
Learn JavaScript
No in-app purchases
Orbit
No in-app purchases
Questions
Is Learn JavaScript free?
Is Orbit free?
Do Learn JavaScript or Orbit have ads?
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