CIT App vs Compendium Lab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CIT App
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千葉工業大学の学生生活をサポートするアプリ。 時間割や学食メニューのチェック、掲示板での情報共有など、大学生活に必要な機能をひとつにまとめました。 主な機能 ・今週の学食情報を手軽にチェック ・学バスの時刻が一目でわかる ・千葉工大に最適化された時間割作成機能 ・学内情報を手軽に共有。掲示板機能 千葉工大生の「知りたい」「共有したい」を叶えるオールインワンアプリです。 今後も機能を拡張し、学生生活をもっと快適にしていきます。
Compendium Lab
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Study mathematics, computer science, and artificial intelligence in one offline-first app. Read 94 lessons across 18 chapters in Korean, English, Japanese, or Chinese, with equations and diagrams preserved in every edition. Save progress and bookmarks, and edit Python examples. Compatible examples execute entirely on your device. Study sessions turn reading into practice through cumulative review, closed-book recall, and hands-on implementation. WHAT YOU GET - 18 chapters, 94 lessons: linear algebra, calculus, probability, statistics, algorithms, data structures, computer vision, graph neural networks, and applied AI - Four language editions of every lesson, switchable from the reader toolbar - An on-device Python lab: edit any code block, run the compatible subset with no server round trip - Cumulative review and closed-book recall sessions built from each lesson - Progress, bookmarks, and lab drafts stored on device and synced through your own private iCloud PRICING Chapters 1 and 2 are free to read in full. A single one-time purchase unlocks all 18 chapters and the complete Python lab. No subscription, no ads, no account. PRIVACY No analytics, no advertising, no tracking. Lessons and the Python runtime are bundled in the app and work with no network connection. Support and privacy policy: https://blue-code.github.io/legal/compendium-lab/support.html
Screenshots
Verdict
The clearest difference is in-app purchases: CIT App at none against Compendium Lab's 1. CIT App also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, 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
Both are free to download. Compendium Lab sells 1 one-off in-app purchase. CIT App asks for nothing beyond the download.
CIT App ships an update every 2 months, Compendium Lab every 4 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | CIT App | Compendium Lab |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 58 MB | 106 MB |
| Age rating | 4+ | 4+ |
| Developer | Masato Murai | Byoungho Kim |
In-app purchases
CIT App
No in-app purchases
Compendium Lab
- Compendium Lab Pro$5.99









