Comparison

Melbourne Sandbox vs Walnut

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

Head to head
About

Melbourne Sandbox

Features
Read full description

This is a sandbox for you to discover the programming language "Melbourne". This language is rules-based engine inspired by Prolog but with a syntax very close to natural languages and with additional functions. It can solve complex problems based of hundreds of encapsulated rules such as the recognition of 4-notes chords or be an alternative to access non structured knowledge database. The app in divided into two text editors : the one on the top is for entering the knowledges and the rules, the one on the bottom is the console and dedicated for your queries. Three buttons at the top are for saving & loading knowledges and rules and accessing the help section. You will find a detailed introduction of the language in the "Help" section of the App or on the official site www.melbourne-language.org. The version of the language in the Sandbox is 1.0.

About

Walnut

This app allows developers to test WKWebView and SFSafariViewController configurations in real-time. It offers built-in DevTools for console, network, storage, and performance analysis, along with JavaScript injection and accessibility auditing.

Highlights
  • Real-time WKWebView configuration testing
  • Built-in DevTools (Console, Network, Storage)
  • JavaScript injection and execution
  • SFSafariViewController testing with content blockers
  • Accessibility auditing (axe-core)
  • Responsive viewport and device emulation
  • Bookmark management
Features
Read full description

The ultimate developer tool for testing WKWebView and SFSafariViewController configurations in real-time. KEY FEATURES WKWebView Testing • Real-time configuration testing with 20+ options • Built-in DevTools: Console, Network, Storage, Performance, Sources, Accessibility • JavaScript injection and snippet execution • Custom User-Agent emulation • Viewport and device emulation SFSafariViewController Testing • Native Safari experience with content blockers • Reader mode and responsive size control • Customizable bar colors and dismiss button styles Developer Tools • Console: Capture console.log with %c CSS styling support • Network: Monitor fetch/XHR requests with timing data • Storage: View/edit localStorage, sessionStorage, cookies • Performance: Web Vitals (LCP, FID, CLS) and Navigation Timing • Sources: DOM tree inspection, stylesheets, scripts • Accessibility: axe-core based accessibility auditing Additional Features • Bookmark management for quick URL access • Responsive viewport resizing (iPhone, iPad, Desktop presets) • Screenshot capture • API capability detection • Dark mode support Perfect for iOS developers who need to test web content rendering, debug JavaScript, analyze network requests, and ensure accessibility compliance.

Screenshots

Melbourne Sandbox1 screens
Walnut4 screens

Verdict

The call

The clearest difference is in-app purchases: Melbourne Sandbox at none against Walnut's 1. Melbourne Sandbox also leads on ads (none vs shown) and iOS requirement (15.5 vs 18.4). On price 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

Both are free to download. Walnut sells 1 one-off in-app purchase. Melbourne Sandbox asks for nothing beyond the download.

Scorecard3 real differences · 7 level
Melbourne Sandbox versus Walnut: the parameters behind the verdict, then further details
ParameterMelbourne SandboxWalnut
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequency—Every 4 days
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.5 — better18.4
Further details — not scored
Size1 MB28 MB
Age rating4+17+
DeveloperFranck DANSAERTJiwon Park

In-app purchases

None

Melbourne Sandbox

No in-app purchases

1 purchases

Walnut

One-time1
  • Remove Ads$3.99

Questions

Is Melbourne Sandbox free?
Melbourne Sandbox is free to download, with no in-app purchases.
Is Walnut free?
Walnut is free to download, with in-app purchases available.
Do Melbourne Sandbox or Walnut have ads?
Walnut shows ads; Melbourne Sandbox does not.

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