Comparison

4917emu Micro Processor Emu vs Learn MongoDB Guide

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

Head to head
About

4917emu Micro Processor Emu

Learn the fundamental principles of how computers operate. This application simulates a hypothetical microprocessor, allowing users to understand basic coding concepts and microprocessor functions through interactive learning.

Highlights
  • Learn computer coding principles
  • Understand microprocessor functions
  • Simulates a 4-bit hypothetical microprocessor
  • Features 16 memory locations
  • Includes 4 registers (IP, IS, R0, R1)
  • Supports 16 instructions
Features
Read full description

Just learn how to CODE a computer: The very basic principles of any computer. Most people learn how exactly a computer works by buying this App. Learn how to CODE. Tell me how a microprocessor works. Here you can learn it. Please like my App and write a customer review. 4917emu is an hypothetical microprocessor that was used in a computer course named COMP1917 at the UNSW University of New South Wales to teach microprocessor basics. It is 4bit, has 16 memory locations and 4 registers: - Instruction Pointer (IP), - Instruction Store (IS), - General Register 0 (R0) and - General Register 1 (R1). Each memory location can store a number between 0 and 15, and there are 16 instructions. There is a Extended Instruction Code set. For example the following 4917 machine code program would print the numbers from zero to 15: 8 0 3 11 1 15 0. Happy hacking ;)

About

Learn MongoDB Guide

Master MongoDB concepts with this comprehensive guide. Covers basic to advanced topics, including document manipulation, collection management, and interview preparation. Ideal for beginners and professionals seeking to learn NoSQL database principles.

Highlights
  • Basic and advanced MongoDB concepts
  • Document and collection management
  • Querying and projection techniques
  • Interview preparation questions
  • Offline learning capabilities
Features
Read full description

Learn MongoDB is a complete learning app designed to help beginners, students, developers, and database learners understand MongoDB from the basics to advanced concepts. Whether you are starting your database journey or improving your backend development skills, this app gives you a simple and structured way to learn MongoDB anytime. MongoDB is a No SQL database. It is an open-source, cross-platform, document-oriented database written in C++. Learn MongoDB app includes all topics of MongoDB database such as insert documents, update documents, delete documents, query documents, projection, sort() and limit() methods, create a collection, drop collection, etc. There are also given MongoDB interview questions to help you better understand the MongoDB database. - What is MongoDB? MongoDB is an open-source document database that provides high performance, high availability, and automatic scaling. In simple words, you can say that - Mongo DB is a document-oriented database. It is an open source product, developed and supported by a company named 10gen. MongoDB is available under General Public license for free, and it is also available under Commercial license from the manufacturer. The manufacturing company 10gen has defined MongoDB as: "MongoDB is a scalable, open-source, high performance, document-oriented database." - 10gen MongoDB was designed to work with commodity servers. Now it is used by the company of all sizes, across all industry.

Screenshots

4917emu Micro Processor Emu4 screens
Learn MongoDB Guide4 screens

Verdict

The call

4917emu Micro Processor Emu and Learn MongoDB Guide both sit at 5.0 stars, but that hides the real split: 100% of Learn MongoDB Guide's written reviews are positive against 33% of 4917emu Micro Processor Emu's. Learn MongoDB Guide also leads on price ($1.99 vs $2.99). 4917emu Micro Processor Emu's advantage is update cadence (every 12 months vs every 51 months). On rating, ratings volume, ads and in-app purchases 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

4917emu Micro Processor Emu costs $2.99 and Learn MongoDB Guide $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for 4917emu Micro Processor Emu against 5.0 for Learn MongoDB Guide. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews are what separate them: 33% of 4917emu Micro Processor Emu's written reviews are positive against 100% of Learn MongoDB Guide's.

UpkeepUpdate frequency

4917emu Micro Processor Emu ships an update every 12 months, Learn MongoDB Guide every 51 months. The most recent releases landed on September 27, 2026 and October 6, 2026 respectively.

Scorecard3 real differences · 7 level
4917emu Micro Processor Emu versus Learn MongoDB Guide: the parameters behind the verdict, then further details
Parameter4917emu Micro Processor EmuLearn MongoDB Guide
Price$2.99$1.99 — better
Rating5.0 (2 ratings)5.0 (3 ratings)
Positive reviews33.3% of reviews100.0% of reviews — better
Number of ratings23 — better
Update frequencyEvery 12 months — betterEvery 51 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size1 MB59 MB
Age rating4+4+
DeveloperMichael MustunMuhammad Mubeen

Customer experience

4917emu Micro Processor Emu

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Learn MongoDB Guide

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

4917emu Micro Processor Emu

No in-app purchases

None

Learn MongoDB Guide

No in-app purchases

Questions

Is 4917emu Micro Processor Emu free?
4917emu Micro Processor Emu costs $2.99, with no in-app purchases.
Is Learn MongoDB Guide free?
Learn MongoDB Guide costs $1.99, with no in-app purchases.
Which has better reviews, 4917emu Micro Processor Emu or Learn MongoDB Guide?
4917emu Micro Processor Emu and Learn MongoDB Guide are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.
Do 4917emu Micro Processor Emu or Learn MongoDB Guide have ads?
Neither 4917emu Micro Processor Emu nor Learn MongoDB Guide shows ads.
Which is updated more often, 4917emu Micro Processor Emu or Learn MongoDB Guide?
4917emu Micro Processor Emu ships an update every 12 months, and Learn MongoDB Guide every 51 months. Most recently, 4917emu Micro Processor Emu was updated on September 27, 2026 and Learn MongoDB Guide on October 6, 2026.

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