ViewSource+ vs JSON DevKit Editor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ViewSource+
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ViewSource+ lets you inspect the source code of any website in seconds. Open a page in Safari, tap Share, then choose Open in ViewSource+. The app fetches the page source and displays it in a clean, readable code viewer with syntax highlighting. Built for developers, designers, students, and anyone curious about how websites are made. What you can do: -View HTML source from any website -Automatically detect and highlight HTML, CSS, JavaScript, and PHP -Search within code with highlighted matches, result counts, and next/previous navigation -View useful fetch details including HTTP status, content type, file size, load time, and final URL -Adjust code font size for easier reading -Copy source code to the clipboard -Switch between Light, Dark, or System appearance -Open pages directly from Safari using the share sheet ViewSource+ is fast, simple, and focused on doing one thing well: letting you see the code behind the web. No accounts. No tracking. No clutter.
JSON DevKit Editor
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JSON DevKit is a JSON workbench for iPhone and iPad. View, edit, format, validate, convert, and compare JSON in one place—built for developers, QA engineers, and API testers who need fast answers on mobile. CORE WORKFLOW • Open JSON from the editor, clipboard, files, or a URL • Pretty-print or minify with syntax highlighting and line numbers • Explore structure in tree view or flatten nested data into a table • Run JSONPath queries and inspect matched results • Generate and validate JSON Schema • Compare two JSON documents with a synced side-by-side diff • Convert JSON to CSV, TSV, XML, YAML, TOML, TOON, Markdown table, HTML, or Base64 • Generate model stubs for Swift, Kotlin, TypeScript, Dart, Java, Python, and C# BUILT FOR REAL WORK • Multi-tab workbench keeps source and output snapshots as you switch tools • Large payloads are processed off the main thread with progress feedback • iPhone and iPad layouts adapt to your device—same tools, optimized navigation • Recent history helps you return to earlier documents quickly PRIVACY BY DESIGN • All JSON processing happens on your device • No account required to use core features • Firebase Analytics (Google) collects anonymous usage events only—no JSON content or ad identifiers • No ads, no subscriptions, and no in-app purchases. All tools are included. • Your data stays local unless you explicitly copy, share, or export it Whether you are debugging an API response, checking a config file, or converting JSON for a report, JSON DevKit keeps the workflow focused and fast.
Screenshots
Verdict
The clearest difference is price: ViewSource+ at Free against JSON DevKit Editor's $0.99. ViewSource+ also leads on in-app purchases (none vs 3). JSON DevKit Editor's advantage is update cadence (every 9 days vs every 2 months). On 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
ViewSource+ is free to download; JSON DevKit Editor costs $0.99 up front. JSON DevKit Editor sells 3 one-off in-app purchases. ViewSource+ asks for nothing beyond the download.
ViewSource+ ships an update every 2 months, JSON DevKit Editor every 9 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.
| Parameter | ViewSource+ | JSON DevKit Editor |
|---|---|---|
| Price | Free — better | $0.99 |
| Update frequency | Every 2 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 5 MB |
| Age rating | 12+ | 4+ |
| Developer | 1BIGRIG Ltd | andy hu |
In-app purchases
ViewSource+
No in-app purchases
JSON DevKit Editor
- Unlock All Features$1.99
- Unlock + Coffee$2.99
- Unlock + Nice Coffee$4.99
Questions
Is ViewSource+ free?
Is JSON DevKit Editor free?
Do ViewSource+ or JSON DevKit Editor have ads?
Which is updated more often, ViewSource+ or JSON DevKit Editor?
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