CPU8 vs Wiki Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CPU8
Explore the inner workings of an 8-bit computer through simulation. Write, assemble, and run programs to understand computer instructions and their relationships with hardware components. Includes an assembler, sample programs, and educational resources.
- 8-bit computer simulator
- Built-in assembler with manual
- Control clock speed and single-step execution
- 16 instructions and 3 pseudo-instructions
- 7 sample assembler programs
- Links to Ben Eater videos
- History of computing content
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Students or software programmers who want to learn how computers work will love this app. CPU8 simulates the SAP-1 (Simple As Possible) 8-bit bread board computer that was famously the star of a series of videos by Ben Eater. Using it, you can control a fully realized computer that utilizes microcode to illustrate the operation of individual computer instructions and their interrelationships with general purpose registers, program counters, memory registers, instruction registers, bus and memory through "control words". In addition, CPU8 contains an assembler that allows you to write programs and convert them into the machine language of the included simulated computer. A full programming manual is included. Write, assemble and run programs using this 8-bit computer to see how the process works from start to finish. FEATURES - Assembler for the 8-bit computer (with manual) - the 8-bit computer simulator - 16 instructions - 3 pseudo instructions - 16 address spaces - control the speed of the simulated computer clock - single step through programs or run to the end - 7 sample assembler programs to get started - links to all the Ben Eater design and teaching videos - A short history of computing through the ages (37 chapters) Suitable for classroom study, independent study or just for the sheer enjoyment of playing with a computer that you can watch and learn from. No individual information is accessed. Oh, did we mention it has wonderful flashing lights!
Wiki Reader
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Turn Wikipedia into your personal knowledge feed. Swipe through millions of articles in a beautiful, TikTok-style format designed for learning. From history to science, technology to philosophy — discover and learn anything with AI-powered tools that make complex topics simple. — KEY FEATURES — • Knowledge Feed Scroll through personalized article recommendations based on your interests. Discover new topics effortlessly, just like scrolling social media — but for your brain. • AI Summary & ELI5 Get instant AI summaries of any article. Too complex? Use "Explain Like I'm 5" to break down difficult topics into simple language anyone can understand. • Ask AI Chat with an AI tutor about any article. Ask follow-up questions, explore deeper connections, and satisfy your curiosity — available 24/7. • Flashcards & Quizzes Turn any article into interactive flashcards with spaced repetition. Test your knowledge with AI-generated quizzes and track your scores. • Mind Map & Knowledge Graph Visualize how topics connect with beautiful mind maps. Explore related articles through an interactive knowledge graph. • Learning Paths Follow structured, multi-article journeys through topics like "Atoms to Galaxies" or "World Civilizations." Track your progress step by step. • Library & Offline Reading Bookmark articles, organize them into folders, and download for offline reading. Compare articles side by side. • Listen to Articles Convert any article to audio with adjustable playback speed. Learn while commuting, exercising, or relaxing. • Reading Streaks & Stats Build a daily reading habit with streak tracking, reading goals, and weekly progress reports. See your knowledge grow across categories. — WHY YOU'LL LOVE IT — Stop mindless scrolling. Start scrolling with purpose. Transform dead time into learning time with a feed that's as addictive as social media — but actually makes you smarter. — LEGAL — Terms of Use: https://leanstudio.asia/terms-of-use Privacy Policy: https://leanstudio.asia/privacy-policy — SUPPORT — Questions or feedback? Contact us at: support@leanstudio.asia
Screenshots
Verdict
The clearest difference is in-app purchases: CPU8 at none against Wiki Reader's 3. CPU8 also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On price, update cadence and 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
Both are free to download. Wiki Reader sells 3 in-app purchases, starting at $5.99 per 7 days. CPU8 asks for nothing beyond the download.
CPU8 ships an update every 3 months, Wiki Reader every 6 weeks. The most recent releases landed on October 24, 2026 and October 5, 2026 respectively.
| Parameter | CPU8 | Wiki Reader |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (15 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 15 — better | — |
| Update frequency | Every 3 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 163 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Cordova Bay Entertainment Group, Inc | LEAN ASIA CO., LTD |
In-app purchases
CPU8
No in-app purchases
Wiki Reader
- Premium Weekly Plan$5.997 Days
- Premium Yearly$29.991 Year
- Lifetime$59.99









