Comparison

CPU8 Plus vs Cartesian graph coordinates

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

Head to head
About

CPU8 Plus

This app simulates an 8-bit computer, teaching users about internal computer workings. It features an expanded memory space compared to its predecessor, allowing for more complex programs and a deeper understanding of computer architecture.

Highlights
  • Simulates 8-bit computer architecture
  • Expanded addressable memory (256 bytes)
  • Simple 16-instruction set
  • Source code compatibility with CPU8
  • Hexadecimal progress displays
  • Detailed memory display
Read full description

CPU8Plus is an updated extension of the basic CPU8 App. Most of the extensions deal with the amount of ‘memory’ available for programs within this little 8-bit computer. CPU8 teaches the user how computers work internally. It does this with a simple instruction set of just 16 instruction along with an 8-bit bus; two 8-bit registers; an 8-bit ALU; 8-bit storage word but only provides 4-bit addresses (that is 4-bit Program Counter and 4-bit Address Register) limiting the addressable memory space to just 16 bytes (or words). CPU8Plus adds 4-bits to the address space via a new 8-bit Program Counter and Address Register. This is a major upgrade that provides 256 bytes (or words) of address space for programs and data — 16 times that of CPU8. To facilitate this change, the microcode now decides if an instruction is a 1 or 2 word instruction and advances the PC accordingly while utilizing the larger space for the operand that has doubled from 4 bits to 8 bits. The CPU8Plus model provides these changes and the assembler now generates new executable object code to reflect these changes. This is all done while maintaining source code compatibility. That means users of CPU8 can cut their source code from CPU8 and paste it into new files on CPU8Plus, assemble and run without any other changes. A common goal in the computer world. Programs can be significantly more complex, however, since they can now be 16 times bigger. Documentation has also been updated along with some history background. Most progress displays are now reported in hexadecimal rather than binary which has become too unwieldy. A separate “memory” display displays contents of the full 256 bytes. Hopefully, this will enhance the learning process for you and provide new information about how computers work! 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.

About

Cartesian graph coordinates

This math-based game teaches children basic math and geometry skills by graphing points on a Cartesian plane to draw unique pictures. It offers an engaging way to learn about coordinates, axes, and problem-solving through art and logic.

Highlights
  • Graph points to draw pictures
  • Learn Cartesian plane basics
  • Solve math problems
  • Develop logical thinking
  • Three difficulty levels
  • Hundreds of exercises
Features
Read full description

Graph points to draw unique pictures - Cartesian plane drawing with coordinates is a math-based game that teaches children basic math and essential geometry skills! Coordinate Plane game teaches you to solve real mathematical problems by correctly graphing points together. Cartesian plane named after mathematician Rene Descartes. He created a system of plane graph coordinates, that joins each point on the plane with a number. Coordinates and the Cartesian Plane is an important topic in any school curriculum and it’s required to be taught to all primary school kids. It’s an easy enough topic for little kids to grasp, especially when paired with simple but fun art drawing challenges. After all, joining points together creates pictures, and add to that math coordinates and you’re not only learning math, you're also being an artist! Learn how points are written in (x, y), how they are oriented to the axes, what is a positive and negative directions, how to read coordinates and what it means to join them together. This cool math game will make children learn in a fun and engaging way! Our game is: Completely FREE Simple - locate the points in the cartesian plane and join them to draw millions of pictures! Guarantees Brain fitness, promotes creativity, teaches logical thinking and connects visual aspects with theory! Provides a real IQ boost. Has 3 difficulty levels, with each one having hundreds of different exercises and challenges. Has clean design reminiscent of old-school notepads and simple but engaging graphics. Introduces active learning experience. Challenges kid’s imagination. Learn plane coordinates graph system while playing our fun, free math game! Follow us on LinkedIn https://www.linkedin.com/company/five-systems-development Add us on Instagram https://www.instagram.com/five_systems_development/ Be friends with us on Facebook https://www.facebook.com/fivesystemsdevelopment

Screenshots

CPU8 Plus4 screens
Cartesian graph coordinates4 screens

Verdict

The call

The clearest difference is in-app purchases: CPU8 Plus at none against Cartesian graph coordinates's 1. CPU8 Plus also leads on ratings volume (5 vs 1). Cartesian graph coordinates's advantage is update cadence (every 4 days vs every 3 months). On price, rating, ads and monetization model 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. Cartesian graph coordinates sells 1 one-off in-app purchase. CPU8 Plus asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for CPU8 Plus against 5.0 for Cartesian graph coordinates. That said, the two scores are not equally well evidenced: CPU8 Plus has 5 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

CPU8 Plus ships an update every 3 months, Cartesian graph coordinates every 4 days. The most recent releases landed on September 23, 2026 and September 17, 2026 respectively.

Scorecard3 real differences · 7 level
CPU8 Plus versus Cartesian graph coordinates: the parameters behind the verdict, then further details
ParameterCPU8 PlusCartesian graph coordinates
PriceFreeFree
Rating5.0 (5 ratings)5.0 (1 ratings)
Positive reviews—100.0% of reviews
Number of ratings5 — better1
Update frequencyEvery 3 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.412.0 — better
Further details — not scored
Size160 MB161 MB
Age rating4+4+
DeveloperCordova Bay Entertainment Group, IncFive Systems Development

Customer experience

CPU8 Plus

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Cartesian graph coordinates

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

CPU8 Plus

No in-app purchases

1 purchases

Cartesian graph coordinates

One-time1
  • Remove AD$0.99

Questions

Is CPU8 Plus free?
CPU8 Plus is free to download, with no in-app purchases.
Is Cartesian graph coordinates free?
Cartesian graph coordinates is free to download, with in-app purchases available.
Which has better reviews, CPU8 Plus or Cartesian graph coordinates?
CPU8 Plus and Cartesian graph coordinates are both rated 5.0 out of 5 on the App Store, from 5 and 1 ratings respectively.
Do CPU8 Plus or Cartesian graph coordinates have ads?
Neither CPU8 Plus nor Cartesian graph coordinates shows ads.
Which is updated more often, CPU8 Plus or Cartesian graph coordinates?
CPU8 Plus ships an update every 3 months, and Cartesian graph coordinates every 4 days. Most recently, CPU8 Plus was updated on September 23, 2026 and Cartesian graph coordinates on September 17, 2026.

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