Comparison

データ構造ビューワ vs DeVS

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

Head to head
About

データ構造ビューワ

Features
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書籍『アプリで学ぶ データ構造とアルゴリズム』で解説されているデータ構造やアルゴリズムの動作を視覚的に理解することを目的としたアプリケーションです。 本アプリケーションで大体の動作を理解し、更に書籍の解説をよみつつ練習問題を解いてください。これによりデータ構造の原理が学べます。 更に詳しくアルゴリズムを学びたい人は、解析の部分を読んでみてください。 解析部分は、数学的な内容も含まれます。 最後に計算量の解析があります。 ここを見ると、そのデータ構造が、どの程度の時間やメモリを必要としているのかが分かります。 本書を読み、アルゴリズムとデータ構造に親しみ、プログラミングの次の段階に進んでください。 https://bookway.jp/modules/zox/index.php?main_page=product_info&products_id=1148&cPath=12

About

DeVS

Features
Read full description

A new way to explore any topic from multiple perspectives — through AI agent discussions. ■ What is DeVS? Choose any topic, and AI agents will debate it from opposing sides — "Pro" and "Con." Each agent brings unique expertise, challenging the other's logic with evidence and counter-arguments. ■ Who is it for? ・Want to think deeply about news and social issues ・Need help organizing your own opinions ・Want to practice debate and critical thinking ・Curious to watch AI agents argue with each other ■ Key Features ・Just enter a topic and AI discussions begin ・8 unique expert agents (Economics, Ethics, Sociology, Science & Engineering, History, Psychology, Entrepreneurship, Investment & Finance) ・Real-time Pro vs Con debate with structured counter-arguments ・Save and share discussion results as images ・Auto-detects your device language (English / Japanese) ■ Sample Topics ・Is college still worth it? ・Remote work vs office — which is better? ・Should AI be introduced in compulsory education? ・Does social media divide society? ・Should we adopt a 4-day work week? You can also enter any topic of your choice. ■ Note All opinions are AI-generated. AI responses may not always be accurate. --- Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://daisukeoka.github.io/devs-legal/legal/privacy-policy

Screenshots

データ構造ビューワ1 screens
DeVS4 screens

Verdict

The call

The clearest difference is in-app purchases: データ構造ビューワ at none against DeVS's 4. データ構造ビューワ also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.1). DeVS's advantage is update cadence (every 8 days vs every 41 months). On price 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

Both are free to download. DeVS sells 4 in-app purchases, starting at $4.99 per month. データ構造ビューワ asks for nothing beyond the download.

UpkeepUpdate frequency

データ構造ビューワ ships an update every 41 months, DeVS every 8 days. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 2 level
データ構造ビューワ versus DeVS: the parameters behind the verdict, then further details
Parameterデータ構造ビューワDeVS
PriceFreeFree
Update frequencyEvery 41 monthsEvery 8 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPodiPhone, iPod
Requires iOS11.0 — better15.1
Further details — not scored
Size40 MB35 MB
Age rating4+12+
DeveloperAsial CorporationDaisuke Oka

In-app purchases

None

データ構造ビューワ

No in-app purchases

4 purchases

DeVS

Subscriptions1
  • DeVS Basic Plan7 Days trial$4.991 Month
One-time3
  • Devate Ticket$1.99
  • Devate Ticket x5$7.99
  • Devate Ticket x10$12.99

Questions

Is データ構造ビューワ free?
データ構造ビューワ is free to download, with no in-app purchases.
Is DeVS free?
DeVS is free to download, with in-app purchases available.
Do データ構造ビューワ or DeVS have ads?
DeVS shows ads; データ構造ビューワ does not.
Which is updated more often, データ構造ビューワ or DeVS?
データ構造ビューワ ships an update every 41 months, and DeVS every 8 days. Most recently, データ構造ビューワ was updated on October 29, 2026 and DeVS on October 25, 2026.

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