UI Tracer vs JavaScript Manual
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UI Tracer
This app allows developers to preview various SwiftUI view styles without recompiling code. It offers comparisons across multiple Apple platforms, including iOS, iPadOS, watchOS, tvOS, and macOS, streamlining the design process.
- Preview SwiftUI view styles
- Compare across iOS, iPadOS, watchOS, tvOS, macOS
- No recompilation needed
- Cross-platform code compatibility
- Extensible view library
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When you are developing your app using SwiftUI, it is really time consuming to compare all possible styles of buttons, list etc to choose one fits best. This app help you check all possible options for SwiftUI's views without recompiling. Compare how they look like on iOS, iPadOS, watchOS, tvOS and MacOS. Same code for all platforms where possible. The list of views will be extended.
JavaScript Manual
An offline, ad-free guide to JavaScript, covering its core guide, built-in objects, and Web API. Access comprehensive documentation without an internet connection.
- JavaScript guide
- Built-in objects
- Web API documentation
- Offline access
- Ad-free experience
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JavaScript Manual - Complete Offline Reference Your go-to companion for JavaScript development. Read everything from ES6+ basics to Web APIs anytime, anywhere - fully offline. Three core modules: - JavaScript Guide: variables, functions, closures, async/await, prototypes and modern ES6+ syntax - Built-in Objects: Array, Object, String, Number, Date, RegExp, Map, Set, Promise and more, with methods and examples - Web API: DOM, Fetch, Storage, Canvas, WebSocket and browser interfaces Why developers love it: - 100% offline - all content stored on your device - Zero ads - clean, distraction-free reading - Lightweight and fast - built for quick lookups Perfect for learning, coding reference, interview prep, and offline study. Questions or feedback? Contact: devspera@outlook.com
Screenshots
Verdict
The clearest difference is price: JavaScript Manual at Free against UI Tracer's $2.99. JavaScript Manual also leads on in-app purchases (none vs 2) and iOS requirement (15.0 vs 26.0). UI Tracer's advantage is update cadence (every 2 days vs every 31 months) and device support (6 vs 2). On rating, review sentiment, ratings volume and ads 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
JavaScript Manual is free to download; UI Tracer costs $2.99 up front. UI Tracer sells 2 one-off in-app purchases. JavaScript Manual asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for UI Tracer against 5.0 for JavaScript Manual. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
UI Tracer ships an update every 2 days, JavaScript Manual every 31 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | UI Tracer | JavaScript Manual |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (4 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 4 — better | 2 |
| Update frequency | Every 2 days — better | Every 31 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, Mac, Apple TV, Apple Watch, Vision Pro — better | iPhone, iPod |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Leonid Liadveikin | Hua Yang |
Customer experience
UI Tracer
JavaScript Manual
In-app purchases
UI Tracer
- Tip$0.99
- Donation$4.99
JavaScript Manual
No in-app purchases
Questions
Is UI Tracer free?
Is JavaScript Manual free?
Which has better reviews, UI Tracer or JavaScript Manual?
Do UI Tracer or JavaScript Manual have ads?
Which is updated more often, UI Tracer or JavaScript Manual?
Other comparisons
