# UI Tracer vs JavaScript Manual

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.

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.

## The numbers

| Metric | UI Tracer | JavaScript Manual |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/ui-tracer/id1644874973/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/javascript-manual/id6476828541/reviews) |
| Number of ratings | **4** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 31 months |
| Monetization | Paid | **Free** |
| Size | 20 MB | 34 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | **iPhone, iPad, Mac, Apple TV, Apple Watch, Vision Pro** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Leonid Liadveikin](https://appshunter.io/developer/1644874975) | [Hua Yang](https://appshunter.io/developer/1497666891) |

## What reviewers say

### UI Tracer

[App page](https://appshunter.io/ios/app/ui-tracer/id1644874973)

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.

**Highlights:** Preview SwiftUI view styles, Compare across iOS, iPadOS, watchOS, tvOS, macOS, No recompilation needed, Cross-platform code compatibility, Extensible view library

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip | $0.99 | one-time |
| Donation | $4.99 | one-time |


### JavaScript Manual

[App page](https://appshunter.io/ios/app/javascript-manual/id6476828541)

An offline, ad-free guide to JavaScript, covering its core guide, built-in objects, and Web API. Access comprehensive documentation without an internet connection.

**Highlights:** JavaScript guide, Built-in objects, Web API documentation, Offline access, Ad-free experience

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is UI Tracer free?

UI Tracer costs $2.99, and also offers in-app purchases.

### Is JavaScript Manual free?

JavaScript Manual is free to download, with no in-app purchases.

### Which has better reviews, UI Tracer or JavaScript Manual?

UI Tracer and JavaScript Manual are both rated 5.0 out of 5 on the App Store, from 4 and 2 ratings respectively.

### Do UI Tracer or JavaScript Manual have ads?

Neither UI Tracer nor JavaScript Manual shows ads.

### Which is updated more often, UI Tracer or JavaScript Manual?

UI Tracer ships an update every 2 days, and JavaScript Manual every 31 months. Most recently, UI Tracer was updated on November 3, 2026 and JavaScript Manual on November 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*