Comparison

Fella vs JavaScript前端面试手册(JSea)

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

Head to head
About

Fella

Features
Read full description

Welcome to "fella". Fella is an app that provides block speed and convenient assistance for Xcode project localization on the MAC side, which can greatly improve your development efficiency. Therefore, it only provides the function of viewing resource files on the IOS side. In fella, we provide many basic operating functions, as well as rich additional functions for you to explore. Thank you for your support.

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." }, ]

Screenshots

Fella4 screens
JavaScript前端面试手册(JSea)4 screens

Verdict

The call

The clearest difference is price: JavaScript前端面试手册(JSea) at Free against Fella's $1.99. JavaScript前端面试手册(JSea) also leads on update cadence (fortnightly vs every 3 months). Fella's advantage is in-app purchases (none vs 1) and device support (4 vs 2). On 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

CostPrice · In-app purchases · Ads · Monetization

JavaScript前端面试手册(JSea) is free to download; Fella costs $1.99 up front. JavaScript前端面试手册(JSea) sells 1 one-off in-app purchase. Fella asks for nothing beyond the download.

UpkeepUpdate frequency

Fella ships an update every 3 months, JavaScript前端面试手册(JSea) fortnightly. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Fella versus JavaScript前端面试手册(JSea): the parameters behind the verdict, then further details
ParameterFellaJavaScript前端面试手册(JSea)
Price$1.99Free — better
Rating—4.6 (9 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—9 — better
Update frequencyEvery 3 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS15.0 — better26.0
Further details — not scored
Size4 MB58 MB
Age rating4+4+
Developer金友 胡雷 戴

In-app purchases

None

Fella

No in-app purchases

1 purchases

JavaScript前端面试手册(JSea)

One-time1
  • Get Pro$1.99

Questions

Is Fella free?
Fella costs $1.99, with no in-app purchases.
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.
Do Fella or JavaScript前端面试手册(JSea) have ads?
Neither Fella nor JavaScript前端面试手册(JSea) shows ads.
Which is updated more often, Fella or JavaScript前端面试手册(JSea)?
Fella ships an update every 3 months, and JavaScript前端面试手册(JSea) fortnightly. Most recently, Fella was updated on October 8, 2026 and JavaScript前端面试手册(JSea) on October 24, 2026.

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