Comparison

Spck Editor vs JavaScript Challenge

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

Head to head
About

Spck Editor

A mobile code editor for JavaScript projects, offering Git integration and intelligent code completion for multiple languages. It allows for editing, committing, and running code directly on your device, with AI coding assistance.

Highlights
  • JS Sandbox for on-the-go coding
  • Git client for GitHub, Bitbucket, GitLab
  • Intelligent code completion (HTML, JS, CSS)
  • Local file access and project search
  • AI Coding Assistants
  • Integrated JS Console
  • Syntax validation
Features
Read full description

Code anywhere. Deploy from your pocket. Spck Editor brings a full professional development workflow to iOS — with AI pair programming, remote CLI access, and deep Git integration built right in. Learn by Doing with JavaScript Labs Explore a curated collection of interactive coding labs and prebuilt project templates — from games to UI components to algorithms. Fork any lab instantly, experiment freely, and publish your own. The fastest way to learn JavaScript hands-on, on the go. Kickstart Projects with Templates Skip the boilerplate. Choose from ready-made project templates across popular frameworks and patterns, tweak them to your needs, and ship — all from your phone. Remote Development, Reimagined Connect to your home machine or cloud server via the Remote CLI. Browse, edit, and run your real project files over a secure relay — then preview your running dev server directly inside the app with the built-in Browser Proxy. Your full stack, in your hands. AI That Actually Codes With You Stuck on a bug? Need boilerplate fast? Spck Editor integrates AI coding assistants powered by the latest models to generate, explain, and refactor code right inside your editor — no copy-paste, no context switching. Professional Git Workflow Clone from GitHub, GitLab, Bitbucket, or any remote. Commit, push, pull, branch, merge, and review logs — a complete Git interface without leaving the app. Your entire version history, always with you. Intelligent Code Editing - Advanced code completion for JavaScript, TypeScript & CSS - Context-sensitive hints and inline documentation - Syntax validation as you type - Keyword completion for 20+ languages - HTML, CSS & JS code snippets Built for Mobile Coding - Dynamic keyboard optimized for JS, HTML & CSS - Extra navigation row for cursor control and brackets - Integrated JS console for instant feedback - Project-wide search with file filters - Local file access Light & Dark themes | JavaScript Labs | Syntax highlighting for 20+ languages Terms of Use: https://spck.io/terms

About

JavaScript Challenge

Features
Read full description

Feed your brain. Level up. Learn to write real JavaScript by solving one puzzle at a time, right on your phone. JavaScript Challenge is a single path of original coding problems, from your first function to graphs, dynamic programming and beyond. Every solution runs on-device in real JavaScript and is checked against hidden tests, so passing means it actually works. Free to start: the opening levels are free, then unlock the full path with a single one-time purchase. No subscription, no ads, no account. WRITE REAL CODE • A coder keyboard built for JavaScript: tab, brackets, quotes, snippets, undo • Instant feedback with named tests, expected vs actual output • Some levels enforce rules (no built-in array helpers, recursion required) so you learn the technique, not the shortcut LEARN THE RIGHT WAY • Three-tier hints from Rhino, your smug but surprisingly helpful mentor • Curated solutions after you solve: naive vs optimal, time and space complexity • Topics: strings, arrays, objects, closures, recursion, dynamic programming, sorting, searching, graphs, trees, hashing, bit tricks, grids, greedy strategies, intervals STAY MOTIVATED • One path, no shortcuts: easy → medium → hard, with performance tests on the hardest levels • XP, player levels, daily streaks and badges • Six themes, dark and light PRIVATE BY DESIGN • Works fully offline, no account, no tracking — your progress stays on your device • No ads, ever

Screenshots

Spck Editor4 screens
JavaScript Challenge4 screens

Verdict

The call

The clearest difference is price: Spck Editor at Free against JavaScript Challenge's $2.99. Spck Editor also leads on chart position (#113 vs unranked). On update cadence, ads, in-app purchases 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

Spck Editor is free to download; JavaScript Challenge costs $2.99 up front. Spck Editor sells 2 in-app purchases, starting at $1.99 per month and JavaScript Challenge sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Spck Editor ships an update every 10 days, JavaScript Challenge weekly. The most recent releases landed on October 12, 2026 and October 4, 2026 respectively.

Scorecard2 real differences · 9 level
Spck Editor versus JavaScript Challenge: the parameters behind the verdict, then further details
ParameterSpck EditorJavaScript Challenge
PriceFree — better$2.99
Rating4.2 (57 ratings) — better—
Positive reviews74.8% of reviews—
Number of ratings57 — better—
Update frequencyEvery 10 daysWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
Best chart rank#113 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size37 MB12 MB
Age rating4+4+
DeveloperZeb ZhaoMUSTAFA GURBUZ

Bugs and requests

Spck Editor

Reported bugs

33 issues
  • App crashes on sign-in/GitHub connection
  • Editor crashes when signing in
  • Browser crashes on React JS
  • Console not responding
  • App crashes when trying to import files
Show 28 more
  • Typing characters like "{" doesn't show up immediately
  • Preview shows a white screen
  • Cannot connect to GitHub, app closes
  • App crashes and returns to springboard when logging into GitHub
  • App closes automatically after installation
  • Cannot copy and paste from previous code
  • App closes on iPad mini 3
  • Launch button not activated
  • Python not working
  • Cannot run code, only existing programs
  • Keyboard doesn't register keystrokes on phone
  • Cursor movement and text replacement issues with Chinese keyboard
  • App crashes on large Git repos
  • Syntax highlighting randomly stops working for JS
  • App does not reopen after crashing
  • Cannot save documents
  • Cannot open terminal documents in write mode
  • Left pane is horrific UX
  • Cannot get to projects page after opening a project
  • Python not running
  • Cannot write code, sometimes doesn't work
  • App shows only logo and no response on iOS 10.3.4
  • Cannot enter entire text when typing a paragraph
  • Text insertion not working
  • Code writing is failing, jumps lines
  • Cannot steal code from GitHub
  • Cannot get app to work
  • Login prompt appears but buttons don't lead to login page

Requested features

16 requests
  • Add Kotlin file support (.kt)
  • Enable "drag spacebar to move cursor" (iOS feature)
  • Add more coding languages (C++, etc.)
  • Add desktop/tablet view for HTML preview
  • Add server management support (Node.js, Python, etc.)
Show 11 more
  • Add extensions
  • Add tutorial section for UI
  • Add FTP/SFTP support
  • Add minimap like Sublime editor
  • Add Node.js support
  • Add readonly mode
  • Add new fonts
  • Add browser preview
  • Add Chinese candidate word support
  • Add mouse support for tablet mode
  • Add terminal for console.log() visibility

JavaScript Challenge

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Spck Editor

Subscriptions2
  • Supporter$1.991 Month
  • Gold$4.991 Month
1 purchases

JavaScript Challenge

One-time1
  • Full Path$6.99

Questions

Is Spck Editor free?
Spck Editor is free to download, with in-app purchases available.
Is JavaScript Challenge free?
JavaScript Challenge costs $2.99, and also offers in-app purchases.
Do Spck Editor or JavaScript Challenge have ads?
Neither Spck Editor nor JavaScript Challenge shows ads.
Which is updated more often, Spck Editor or JavaScript Challenge?
Spck Editor ships an update every 10 days, and JavaScript Challenge weekly. Most recently, Spck Editor was updated on October 12, 2026 and JavaScript Challenge on October 4, 2026.

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