Comparison

CPU8 vs Lymphedema Exam by Rocket Prep

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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!

About

Lymphedema Exam by Rocket Prep

Features
Read full description

Advance Your Career with the Lymphedema Certification Exam Elevate your professional journey with Rocket Prep's mobile-optimized study resource for the Lymphedema Lower Extremity Certification Exam. This certification validates your expertise in the assessment and treatment of lower extremity lymphedema, supporting improved patient outcomes and specialized clinical practice. Whether you are a healthcare professional expanding your skills or specializing in lymphatic care, this platform offers curated content, interactive study tools, and personalized progress tracking to help you succeed. Key Features Extensive Question Bank Practice with questions designed to reflect real exam challenges. Engage with scenario-based items that mirror clinical situations in lymphedema assessment and treatment. Detailed Explanations & References Enhance your understanding of both correct and incorrect answers to strengthen your clinical reasoning and patient care knowledge. Stay aligned with current standards and best practices in lymphedema management. Customizable Study Modes Select quick quizzes for efficient on-the-go review, or full-length simulated exams that replicate the official testing experience. Filter questions by topic, complexity, or learning objectives. Progress Tracking & Analytics Monitor your performance across key areas—accuracy, time management, and topic mastery. Gain real-time insights into your strengths and weaknesses. Expert-Led Review Resources Access concise guides covering core topics such as lymphatic system function, assessment techniques, compression therapy, and treatment planning. Active Learning Tools Utilize flashcards, mnemonics, and structured study tools to reinforce key clinical concepts and improve retention. Personalized Study Reminders Set daily or weekly goals and receive reminders to maintain consistent exam preparation progress. Offline Access & Cross-Device Sync Download materials for offline study and sync your progress across devices for seamless learning. Why Choose This Exam Prep Solution? Reliable Expertise Content is regularly reviewed and updated to ensure accuracy and relevance to current certification standards. Comprehensive Coverage Cover essential knowledge required for lower extremity lymphedema care, from foundational concepts to clinical application. Elevate Your Career Passing the certification exam can enhance your professional credentials and expand opportunities in specialized patient care and rehabilitation settings. Start Your Journey Today Don’t let uncertainty or a demanding schedule hold you back. Download this powerful exam prep tool now to begin a structured and flexible study plan. With consistent practice, real-time feedback, and high-quality materials, you’ll be ready for exam success. Please note: our app offers premium content labeled as "Pro," which users can access by subscribing. This includes advanced features designed to support exam preparation. The free version includes flashcards and daily quizzes for continuous learning. Disclaimer This exam preparation platform is an independent resource and is not affiliated with or endorsed by NAWCO or any official certification organization. All trademarks are the property of their respective owners. Always follow official certification guidelines and professional standards.

Screenshots

CPU84 screens
Lymphedema Exam by Rocket Prep4 screens

Verdict

The call

The clearest difference is in-app purchases: CPU8 at none against Lymphedema Exam by Rocket Prep's 6. CPU8 also leads on iOS requirement (12.0 vs 15.1). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Lymphedema Exam by Rocket Prep sells 6 in-app purchases, starting at $7.99 per 7 days. CPU8 asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 11, 2026 and October 18, 2026 respectively.

Scorecard2 real differences · 8 level
CPU8 versus Lymphedema Exam by Rocket Prep: the parameters behind the verdict, then further details
ParameterCPU8Lymphedema Exam by Rocket Prep
PriceFreeFree
Rating4.7 (14 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings14 — better—
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size163 MB42 MB
Age rating4+12+
DeveloperCordova Bay Entertainment Group, IncDarya Pyzhyk

In-app purchases

None

CPU8

No in-app purchases

6 purchases

Lymphedema Exam by Rocket Prep

Subscriptions3
  • Lymph Weekly Full Access$7.997 Days
  • Lymph Monthly Full Access$17.991 Month
  • Lymph Monthly Full Access3 Days trial$17.991 Month
One-time3
  • Lymph_mock_tries_1$4.99
  • Lymph_mock_tries_3$9.99
  • Lymph_mock_tries_5$14.99

Questions

Is CPU8 free?
CPU8 is free to download, with no in-app purchases.
Is Lymphedema Exam by Rocket Prep free?
Lymphedema Exam by Rocket Prep is free to download, with in-app purchases available.
Do CPU8 or Lymphedema Exam by Rocket Prep have ads?
Neither CPU8 nor Lymphedema Exam by Rocket Prep shows ads.
Which is updated more often, CPU8 or Lymphedema Exam by Rocket Prep?
CPU8 ships an update every 3 months, and Lymphedema Exam by Rocket Prep every 3 months. Most recently, CPU8 was updated on October 11, 2026 and Lymphedema Exam by Rocket Prep on October 18, 2026.

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