Comparison

极客时间 vs Data Structure Display

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

Head to head
About

极客时间

This platform offers advanced AI learning paths, covering everything from foundational algorithms to large model principles and practical AIGC applications. It also provides a comprehensive technical learning experience for developers with expert-led courses, real-world case studies, and community features.

Highlights
  • AI learning paths
  • Expert-led technical courses
  • Real-world enterprise case studies
  • 18 technical growth routes
  • Audio and video learning
  • Learning community
  • Training camps
Features
Read full description

「学 AI,来极客时间」 拥有为 AI 学习者量身定制进阶路径,从基础算法入门,到深度学习、大模型原理剖析,再到 AIGC 实战演练全覆盖。顶尖 AI 专家亲授前沿课程,搭配 1000+ 小时 InfoQ 线下大会最新企业真实案例,助你快速掌握 AI 核心技术。 「畅学技术知识」 面向程序员的学习成长平台,汇聚了 1000+ 知名 IT 公司的资深技术专家,专业教研精心打磨出 18 条技术人成长路线,包含 400+ 大咖热门课程、1400+ 知名 IT 公司前沿案例,沉浸式学习模式,可以在碎片时间听音频,看视频,为你打造随身技术学习引擎。 「新人福利」 新用户可领取 7 天学习卡,畅学 400+技术好课、1400+ 行业前沿实践。 「精品课程」 课程涵盖:人工智能、Java、Python、Go、C语言、后端、前端、架构、区块链、全栈、运维、中台、大数据、推荐系统、算法、Linux 等各类开发语言和技术方向,紧跟前沿技术;每门课都经由知名IT公司资深技术专家和专业教研精心打磨,只为让你的技术持续提升。 「大咖引路」 左耳朵耗子、丁奇、许式伟、郭东白、徐昊、张磊、王争、彭东、李运华等 1000+ 技术大牛,与你分享独家心法,站在巨人的肩膀上不走弯路。 「沉浸体验」 精心设计的文章排版,个性化的阅读风格,为你打造沉浸式的学习体验。你可以使用划线、评论、收藏的功能进行深度学习,也可以在碎片时间听音频,看视频。 「学习社群」 极客时间提供了留言、社群、部落等方式,为大家提供共同学习、共同探讨的渠道。 「企业服务」 极客时间企业版是一站式数字化技术学习平台,通过版权课程、智能学习平台和学习运营服务,助力企业打造数字化团队。 「训练营」 聚焦前沿重点技术方向及人才发展的热门趋势,深度还原教育场景,通过导、学、练、测、评教学闭环,让你听懂学会用得上,全方位学习服务,助你实现学有所成并学以致用。 您有任何疑问和建议可以通过客户端反馈(我的-帮助与反馈-反馈问题),或者通过以下方式随时与我们联系。 微信公众号:极客时间 客服电话:010-64128142 企业学习解决方案:400 616 6206

About

Data Structure Display

Explore and learn data structures through dynamic debugging and visual observation of changes. This app covers linear structures, trees, graphs, and recursive algorithms like the Tower of Hanoi, offering interactive learning experiences.

Highlights
  • Dynamic data structure debugging
  • Visual observation of data structure changes
  • Learn linear structures (arrays, lists, queues, stacks)
  • Explore tree structures (binary, AVL, red-black, heap)
  • Understand graph structures and algorithms
  • Debug recursive algorithms like Tower of Hanoi
Features
Read full description

A novel data structure learning app, the most significant feature is that you can dynamically debug the data structure in this app, and visually observe the changes in the data structure during the operation. In this app you can learn the following data structures: 1. Linear structures, including arrays, linked lists, queues, stacks. Linear structures are the basis for other advanced data structures, as fine as advanced algorithms. 2. Tree structures, including binary tree, binary search tree, AVL tree, red-black tree, and heap. In this app, you can dynamically debug three traversals of the binary tree (including non-recursive traversal implementations), searching in the tree, balance adjustments in the AVL tree and red-black tree, and heap sorting. Give you the ability of handwritten red-black trees. 3. Graph structure, including the adjacency list storage representation of the graph structure, depth-first search and breadth-first search, finding the Euler path in the graph, topological sorting, maximum connected components, minimum spanning tree problem, and shortest single source Path problem. It also provides dynamic debugging of these classic graph algorithms. 4. The data structure introductory class will talk about the problem of the Tower of Hanoi. The algorithm that solves this problem is often recursive. This app provides dynamic debugging of the Tower of Hanoi problem, so you can no longer be confused about the recursive calls of the Tower of Hanoi.

Screenshots

极客时间4 screens
Data Structure Display4 screens

Verdict

The call

The clearest difference is rating: Data Structure Display at 4.5 against 极客时间's 3.9. Data Structure Display also leads on ads (none vs shown). 极客时间's advantage is update cadence (every 4 weeks vs every 5 months) and iOS requirement (10.0 vs 13.0). On price, review sentiment, ratings volume and in-app purchases 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

Both are free to download. 极客时间 sells 13 one-off in-app purchases and Data Structure Display sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Data Structure Display holds the better App Store score, 4.5 against 3.9. Both are backed by a comparable volume of ratings — 324 and 676 respectively. Written reviews point the same way: 59% of 极客时间's written reviews are positive against 62% of Data Structure Display's.

UpkeepUpdate frequency

极客时间 ships an update every 4 weeks, Data Structure Display every 5 months. The most recent releases landed on October 9, 2026 and October 3, 2026 respectively.

Scorecard4 real differences · 6 level
极客时间 versus Data Structure Display: the parameters behind the verdict, then further details
Parameter极客时间Data Structure Display
PriceFreeFree
Rating3.9 (324 ratings)4.5 (676 ratings) — better
Positive reviews58.7% of reviews61.9% of reviews — better
Number of ratings324676 — better
Update frequencyEvery 4 weeks — betterEvery 5 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS10.0 — better13.0
Further details — not scored
Size262 MB8 MB
Age rating4+4+
DeveloperThe Holding of GeekBang (Beijing) Co., LtdJinan Matrix Information Technology Co., Ltd.

Customer experience

极客时间

All ratings324 ratings
Positive70.4%
Neutral4.6%
Negative25.0%
Written reviews155 reviews
Positive58.7%
Neutral9.0%
Negative32.3%

Data Structure Display

All ratings676 ratings
Positive87.1%
Neutral2.4%
Negative10.5%
Written reviews42 reviews
Positive61.9%
Neutral2.4%
Negative35.7%

User reviews

极客时间

From 324 App Store ratings

What we love

  • 👍 Easy to use
  • 💡 Great learning content
  • 🚀 Productive app
  • 🤩 Excellent app

Room to improve

  • 🐛 Crashes and bugs
  • ⏱️ Slow loading times
  • 🌙 Lack of dark mode
  • 🤯 Frustrating to use

Data Structure Display

From 676 App Store ratings

What we love

  • 📚 Excellent for DSA learning and studying
  • ✨ Interactive components and pseudo code quality
  • 👍 Good reference material for beginners
  • 🎓 Unique educational content

Room to improve

  • 🔒 90% of content locked behind $2.99 paywall
  • 📖 Incomplete coverage of data structures
  • ✍️ Poor grammar and spelling
  • 📱 No dark mode support on macOS
  • 🔔 Excessive review prompts

Bugs and requests

极客时间

Reported bugs

3 issues
  • Purchased courses not accessible
  • Inconsistent login behavior
  • Playback issues (progress reset, no background play)

Requested features

3 requests
  • Page-level search
  • Offline mode for content
  • Improved navigation and playback controls

Data Structure Display

Reported bugs

2 issues
  • Aggressive review request frequency
  • Inconsistent dark mode functionality between iOS and macOS

Requested features

4 requests
  • Dark mode implementation
  • Comprehensive coverage of all data structure variants
  • More practical exercises and problems
  • Ad-supported free tier instead of paywall

In-app purchases

13 purchases

极客时间

One-time13
  • 6G币充值$0.99
  • 10G币充值$0.99
  • 12G币充值$1.99
Show 10 more
  • 38G币充值$4.99
  • 68G币充值$9.99
  • 78G币充值$9.99
  • 79G币充值$9.99
  • 108G币充值$14.99
  • 98G币充值$14.99
  • 218G币充值$29.99
  • 308G币充值$44.99
  • 518G币充值$69.99
  • 1598G币充值$229.99
1 purchases

Data Structure Display

One-time1
  • Unlock all data structures$2.99

Questions

Is 极客时间 free?
极客时间 is free to download, with in-app purchases available.
Is Data Structure Display free?
Data Structure Display is free to download, with in-app purchases available.
Which has better reviews, 极客时间 or Data Structure Display?
Data Structure Display is rated higher. 极客时间 averages 3.9 out of 5 from 324 ratings, while Data Structure Display averages 4.5 from 676 ratings.
Do 极客时间 or Data Structure Display have ads?
极客时间 shows ads; Data Structure Display does not.
Which is updated more often, 极客时间 or Data Structure Display?
极客时间 ships an update every 4 weeks, and Data Structure Display every 5 months. Most recently, 极客时间 was updated on October 9, 2026 and Data Structure Display on October 3, 2026.

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