CS++ AP CSP vs HTML and CSS Basics
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CS++ AP CSP
This app provides a comprehensive, offline AP Computer Science Principles course. It features 11 units aligned with the College Board curriculum, interactive quizzes with explanations, and clear, jargon-free lessons. Progress is saved locally, ensuring accessibility anywhere.
- 11 AP CSP course units
- Offline access
- Hundreds of practice questions
- Clear, conversational lessons
- On-device progress saving
- AP-prep notes and examples
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CS++ AP CSP is the complete AP Computer Science Principles course in your pocket — fully offline. WHAT YOU GET • 11 units covering every topic in the College Board AP CSP Course and Exam Description (CED) • Hundreds of inline multiple-choice "Check Your Understanding" questions, with hints and explanations • Lesson text written for high school students — clear, conversational, no jargon walls • Worked examples, common-error callouts, and AP-prep notes throughout • Progress saved on-device, persistent across sessions • Unit 1 (The Computer) is free; full course unlocks for $9.99 (one-time) THE 11 UNITS 1. The Computer 2. Data Representation 3. Compression & Encryption 4. Data Analysis & Visualization 5. Algorithms 6. Programming Languages & Abstraction 7. The Internet & HTML 8. JavaScript Basics 9. Procedures & Lists 10. Create Performance Task Prep 11. Impact of Computing & Exam Strategies WHY OFFLINE All lesson content is shipped inside the app — no streaming, no fetching. Use it on a plane, a Chromebook with restricted Wi-Fi, or anywhere with no signal. WHY CS++ We've taught AP CSP online at csplusplus.com to teachers and students across the United States. This app distills the full course into a focused study tool — same content, same alignment to the 2025-26 College Board CED, packaged for the device you carry every day. VIDEOS NOT INCLUDED The course videos that accompany each lesson on csplusplus.com are not bundled in the app (to keep the download small and fully offline). Each lesson includes a "Watch on csplusplus.com" link that opens the corresponding video in a browser. PRIVACY No account creation. No sign-in. No analytics or tracking. All progress lives in app storage on your device. No data is sent to our servers. THE PURCHASE The free tier covers Unit 1 — enough to evaluate the lesson format and inline checks. The full unlock is a one-time $9.99 purchase that unlocks all 11 units forever, with no subscription. AP, Advanced Placement, and AP Computer Science Principles are registered trademarks of the College Board, which is not affiliated with and does not endorse this app. Built by Yellow Dart Publishing.
HTML and CSS Basics
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HTML and CSS Basics Prep is an independent study app built to help you practice core web development concepts with confidence. Use it to strengthen your understanding of structure, styling, layout, and common errors through focused, exam-style practice. It is designed for beginners, students, bootcamp learners, self-taught developers, and career switchers who want practical HTML and CSS fluency. - 160 questions across Fundamentals, Practical Skills, Common Pitfalls, and Advanced Concepts - FSRS spaced-repetition scheduling to review at the right interval - Weak-point heatmap to spot and fix trouble areas fast - Daily challenge to keep your streak and momentum - Mock exams to simulate timed practice sessions - Every question includes a clear explanation - Offline practice support for study anywhere Independent study app for HTML and CSS Basics practice. Not affiliated with, endorsed by, or sponsored by any company, certification body, exam operator, or vendor. All trademarks belong to their respective owners. Privacy: Practice offline, no login required.
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Verdict
The clearest difference is in-app purchases: HTML and CSS Basics at none against CS++ AP CSP's 1. HTML and CSS Basics also leads on update cadence (every 5 days vs every 3 weeks). On price, ads, device support and iOS requirement 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. CS++ AP CSP sells 1 one-off in-app purchase. HTML and CSS Basics asks for nothing beyond the download.
CS++ AP CSP ships an update every 3 weeks, HTML and CSS Basics every 5 days. The most recent releases landed on October 3, 2026 and September 29, 2026 respectively.
| Parameter | CS++ AP CSP | HTML and CSS Basics |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 50 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Kevin Hare | AFTW LLC |
In-app purchases
CS++ AP CSP
- Unlock Full AP CSP Course$9.99
HTML and CSS Basics
No in-app purchases
Questions
Is CS++ AP CSP free?
Is HTML and CSS Basics free?
Do CS++ AP CSP or HTML and CSS Basics have ads?
Which is updated more often, CS++ AP CSP or HTML and CSS Basics?
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