Comparison

4917emu Micro Processor Emu vs ProgCalc

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

ProgCalc

Features
Read full description

**ProgCalc Overview** ProgCalc is a high-precision (38-digit) programmable calculator with true-decimal arithmetic, offering a Swift programming language interface for creating complex algorithms. It supports both scalar and non-scalar data types and operations. Non-scalar data types include complex numbers, quaternions, n-dimensional vectors, arrays, lists, and hierarchical tuples. The app uses a tailored subset of the standard Swift language, optimized for numerical applications. It includes a comprehensive 38-digit scalar math library featuring well-known transcendental functions (trigonometric, hyperbolic, logarithmic, and exponential) as well as specialized functions such as arithmetic-geometric mean, arbitrary-precision rounding, modulo operations, binomial coefficients (log and normal), factorial functions (log and normal), ceiling and floor functions (toward -∞ and 0), and more. A detailed app documentation is included, accessible via the [2nd][8] key. It provides a comprehensive guide to all calculator features, a language reference with examples and grammar, and additional resources. **User Interface Modes** ProgCalc offers three interactive modes, detailed in the app documentation: - Standard infix notation (infiX, default) - Fully editable infix notation (infiXE) - Reverse Polish Notation (RPN) You can switch between modes from the device’s home screen by using a pressure gesture on the app icon. On iPad devices, dedicated mode-switch keys provide a more convenient option. **Additional Notes** - ProgCalc is ad-free and will remain so. - The app does not collect any information. - The app does not rely on any third-party software.

Screenshots

4917emu Micro Processor Emu4 screens
ProgCalc4 screens

Verdict

The call

The clearest difference is price: ProgCalc at Free against 4917emu Micro Processor Emu's $2.99. ProgCalc also leads on update cadence (fortnightly vs every 12 months). 4917emu Micro Processor Emu's advantage is iOS requirement (12.0 vs 15.0). On ads, in-app purchases 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

ProgCalc is free to download; 4917emu Micro Processor Emu costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

4917emu Micro Processor Emu ships an update every 12 months, ProgCalc fortnightly. The most recent releases landed on September 27, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 7 level
4917emu Micro Processor Emu versus ProgCalc: the parameters behind the verdict, then further details
Parameter4917emu Micro Processor EmuProgCalc
Price$2.99Free — better
Rating5.0 (2 ratings) — better—
Positive reviews33.3% of reviews—
Number of ratings2 — better—
Update frequencyEvery 12 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size1 MB12 MB
Age rating4+4+
DeveloperMichael MustunNeopoise

In-app purchases

None

4917emu Micro Processor Emu

No in-app purchases

None

ProgCalc

No in-app purchases

Questions

Is 4917emu Micro Processor Emu free?
4917emu Micro Processor Emu costs $2.99, with no in-app purchases.
Is ProgCalc free?
ProgCalc is free to download, with no in-app purchases.
Do 4917emu Micro Processor Emu or ProgCalc have ads?
Neither 4917emu Micro Processor Emu nor ProgCalc shows ads.
Which is updated more often, 4917emu Micro Processor Emu or ProgCalc?
4917emu Micro Processor Emu ships an update every 12 months, and ProgCalc fortnightly. Most recently, 4917emu Micro Processor Emu was updated on September 27, 2026 and ProgCalc on October 7, 2026.

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