Comparison

JavaScript前端面试手册(JSea) vs iKeleton OSC

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

Head to head
About

JavaScript前端面试手册(JSea)

Prepare for front-end developer interviews with this app. It provides tutorials on JS basics and algorithms, plus over 1000 interview questions with detailed answers for JavaScript, Angular, ReactJS, and VueJS.

Highlights
  • JS Basics Tutorial
  • JS Algorithms Tutorial
  • 1000+ Interview Questions
  • Detailed Answers
  • Angular, ReactJS, VueJS Coverage
Features
Read full description

JSea for JavaScript is a comprehensive interview preparation app for front-end developers. It offers a variety of features to help you ace your next interview, including: 1. JS Basics Tutorial: A comprehensive tutorial covering the fundamentals of JavaScript. 2.JS Algorithms Tutorial: Learn about common algorithms and data structures, with explanations and links to further reading. 3. 1000+ Interview Questions: Practice with a wide range of interview questions, including those covering JavaScript, Angular, ReactJS, and VueJS. 4. Detailed Answers: Get detailed explanations for each question, helping you understand the concepts behind the answers. JSea for JavaScript is the perfect tool for front-end developers who want to improve their interview skills and land their dream job. Download it today and start preparing for your next interview!  [ { "feature": "1. JavaScript Tutorial", "info": "A very simple tutorial for teaching programming basics with Javascript." }, { "feature": "2. JavaScript Algorithms", "info": "Algorithms and data structures implemented in JavaScript with explanations and links to further readings." }, { "feature": "3. Algorithms and Problem Solving", "info": "The data structure and algorithm analysis tutorial takes you into a more advanced computer world, selects 150+ algorithm solutions, and provides JavaScript code solution." }, { "feature": "4. JavaScript Interview", "info": "1000+ Interview Questions including those covering JavaScript, Angular, ReactJS, and VueJS." }, ]

About

iKeleton OSC

This app captures body tracking data and transmits it to other devices via OSC. It's ideal for creating multimedia content by integrating motion data with various devices. Requires an A12 Bionic processor or newer for body tracking.

Highlights
  • Body tracking data capture
  • OSC protocol transmission
  • Multimedia content creation
  • Cross-device data sharing
  • Requires A12 Bionic processor or newer
Features
Read full description

An application capturing body tracking data and sending it to other devices using OSC, a protocol for networking sound synthesizers, computers, and other multimedia devices, to create multimedia content. Note: Body tracking functionality requires an A12 Bionic processor. This is limited to the iPhone X,iPhone XR, and any newer devices.

Screenshots

JavaScript前端面试手册(JSea)4 screens
iKeleton OSC4 screens

Verdict

The call

The clearest difference is price: JavaScript前端面试手册(JSea) at Free against iKeleton OSC's $4.99. JavaScript前端面试手册(JSea) also leads on update cadence (every 10 days vs every 24 months) and ratings volume (9 vs 3). iKeleton OSC's advantage is in-app purchases (none vs 1) and rating (5.0 vs 4.6). On ads 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

JavaScript前端面试手册(JSea) is free to download; iKeleton OSC costs $4.99 up front. JavaScript前端面试手册(JSea) sells 1 one-off in-app purchase. iKeleton OSC asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

iKeleton OSC holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 9 and 3 respectively.

UpkeepUpdate frequency

JavaScript前端面试手册(JSea) ships an update every 10 days, iKeleton OSC every 24 months. The most recent releases landed on September 28, 2026 and September 19, 2026 respectively.

Scorecard8 real differences · 3 level
JavaScript前端面试手册(JSea) versus iKeleton OSC: the parameters behind the verdict, then further details
ParameterJavaScript前端面试手册(JSea)iKeleton OSC
PriceFree — better$4.99
Rating4.6 (9 ratings)5.0 (3 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings9 — better3
Update frequencyEvery 10 days — betterEvery 24 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank—#150 — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size62 MB4 MB
Age rating4+4+
Developer雷 戴Gwangyu Lee

Customer experience

JavaScript前端面试手册(JSea)

All ratings9 ratings
Positive88.9%
Neutral0.0%
Negative11.1%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

iKeleton OSC

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

JavaScript前端面试手册(JSea)

One-time1
  • Get Pro$0.99
None

iKeleton OSC

No in-app purchases

Questions

Is JavaScript前端面试手册(JSea) free?
JavaScript前端面试手册(JSea) is free to download, with in-app purchases available.
Is iKeleton OSC free?
iKeleton OSC costs $4.99, with no in-app purchases.
Which has better reviews, JavaScript前端面试手册(JSea) or iKeleton OSC?
iKeleton OSC is rated higher. JavaScript前端面试手册(JSea) averages 4.6 out of 5 from 9 ratings, while iKeleton OSC averages 5.0 from 3 ratings.
Do JavaScript前端面试手册(JSea) or iKeleton OSC have ads?
Neither JavaScript前端面试手册(JSea) nor iKeleton OSC shows ads.
Which is updated more often, JavaScript前端面试手册(JSea) or iKeleton OSC?
JavaScript前端面试手册(JSea) ships an update every 10 days, and iKeleton OSC every 24 months. Most recently, JavaScript前端面试手册(JSea) was updated on September 28, 2026 and iKeleton OSC on September 19, 2026.

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