# RISC-V Assembly Simulator > Mobile 32-bit system simulator for RISC-V assembly programming and debugging. (iPhone/iPad app by Matthew Jacobs.) - Source: https://appshunter.io/ios/app/risc-v-assembly-simulator/id6746425094 (this page in markdown: same URL + `.md`) - Developer: [Matthew Jacobs](https://appshunter.io/developer/1750387744) - Category: Education, Developer Tools - Price: Free - Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 26.0 · 3 MB - Languages: English - Released: 2025-08-26 - Data updated: 2026-07-05 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/risc-v-assembly-simulator/id6746425094/reviews.md ## What is RISC? RISC-V Assembly Simulator is a mobile 32-bit system simulator. The app simulates the entire system, all the way from each individual unit on a CPU to the memory subsystem. Write assembly natively to the CPU, with a built-in debugger so you can analyze your code and see what the hardware is doing. ## Key features - 32-bit system simulation - CPU unit simulation - Memory subsystem simulation - Native assembly coding - Built-in debugger - Hardware analysis ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/risc-v-assembly-simulator/id6746425094/reviews.md ### 5/5 — Wonderful Tool for Experimenting with Modern Low-Level Programming *2025-10-07* RISC-V Assembly Simulator is an incredible and unique tool for iOS users with programming experience who want to expand their knowledge in low-level programming. This app provides the resources necessary to tinker with the RV32I instruction set (and apparantly more sets to come), allowing users to experiment with a form of low-level programming that is otherwise difficult to use on iOS. In addition to the undeniable qualities of the app itself, the developer is quite friendly and responsive to feedback, providing a very pleasant experience with addressing bugs or adding helpful features. Overall, being a user of RISC-V Assembly Simulator has been a very educational and enjoyable experience. I recommend this app to anyone interested in learning the fundamentals of low-level programming. ## Frequently asked questions about RISC ### What is RISC-V Assembly Simulator? RISC-V Assembly Simulator is a mobile application that simulates a complete 32-bit system. It allows users to write and debug assembly code directly on the simulated hardware, providing insights into CPU and memory operations. ### What learning methodology does RISC-V Assembly Simulator use? The app employs a hands-on learning methodology by providing a simulated environment for practical assembly programming. Users learn by doing, writing code and observing its execution on the virtual hardware. ### How does RISC-V Assembly Simulator track user progress? While the app provides a platform for practice, it does not have explicit progress tracking features. Users can gauge their understanding through their ability to successfully write and debug assembly code within the simulator. ### Does RISC-V Assembly Simulator offer certifications? RISC-V Assembly Simulator does not offer any formal certifications. It serves as an educational tool to aid in learning and understanding RISC-V assembly language and system architecture. ### What devices is RISC-V Assembly Simulator compatible with? RISC-V Assembly Simulator is compatible with both iPhone and iPad devices, running on iOS. ### How often is RISC-V Assembly Simulator updated? The latest version, 2.1, was released on May 13, 2026, indicating a recent update. Users can expect continued development and improvements based on the developer's activity. ### What is the age rating for RISC-V Assembly Simulator? RISC-V Assembly Simulator has an age rating of 4+, making it suitable for a wide range of users interested in learning about computer systems. ### Does RISC-V Assembly Simulator have ads? No, RISC-V Assembly Simulator is ad-free. The app is completely free to download and use without any advertisements. ## Version history (last 5 releases) ### 2.3 — 2026-06-23 Significant speed increase almost 2x for single core and 3x for dual core Code editor now has highlighting syntax, and is customizable! All new UI for interacting with apple intelligence Fixed bug where token count wouldn't update on apple intelligence Improved sample program and documentation ### 2.2 — 2026-05-26 Minor CPU revision - when failing to fully decode an instruction, halt is used instead of allowing a partial decode Assembler now supports ASCII for immediate values. Write it as 'ABCD' for 4 bytes. Push and pop pseudo support added Small improvements to encoding immediates When viewing a number in an instruction result, a little menu appears showing all notations of the value (hex binary signed unsigned ASCII) Updated results page when no program is running Fixed bug where you can't filter logs when program Is halted ### 2.1 — 2026-05-13 UI Changes - Running a program is now a dedicated tab allowing you to edit and run much faster Apple intelligence conversations now show token capacity (ios 26.4+) Unselect button when selecting all programs Importing a program now generates a success message Fixed bug when trying to run no error would be displayed when error occurred Registers are now grouped when consecutively 0 Added timer when running your program and when its done execution so you can see execution time Added new benchmark, allowing you to see the speed of your device and compare it against others Fixed bug where showing logs would show incorrect values Adjusted execution UI Updated documentation to reflect all these changes Hardware Fixes - Fixed b type encoding where bit length would be too short Fixed bug where atomic would have incorrect operand order Fixed bug where incorrect data address would be used when accessing memory Fixed bug where register file would use incorrect values Improved atomic instruction behavior Fixed potential overflow issues causing the app to crash Replaced old efficiency options with new ones - last log and all log allowing you to only return the last log or all logs (only last 10,000) are shown ### 1.95 — 2026-02-28 Complete overhaul - Added new dual core execution mode Revamped UI Removed Ads Better split screen support on supported devices Code along with Apple Intelligence Customize the appearance of your programs Added basic version control for program revisions Added options to increase speed & efficiency Updated documentation Fixed bug when viewing logs the incorrect register value would be shown More bug fixes as well ### 1.52 — 2025-12-21 You can see your program in the code builder tool Code builder now adds comment of pseudo instruction You can now display the associated instruction in memory Dividing by 0 now returns 0 ## Apps similar to RISC | App | Rating | Price | Category | | --- | --- | --- | --- | | [Diagnostic Imaging Exam Review](https://appshunter.io/ios/app/diagnostic-imaging-exam-review/id1245215892) | — | $3.99 | Education | | [LeetO(n)](https://appshunter.io/ios/app/leeton/id6749620204) | 5.0 (5) | Free | Education | | [The Assembler](https://appshunter.io/ios/app/the-assembler/id1631691804) | 4.8 (10) | Free | Education | | [my-RISC](https://appshunter.io/ios/app/my-risc/id6621199819) | — | Free | Education | | [Terminal Drill](https://appshunter.io/ios/app/terminal-drill/id6763718668) | — | Free | Education | | [Arabic Grammar Academy](https://appshunter.io/ios/app/arabic-grammar-academy/id412406639) | — | $9.99 | Education | ## More apps by Matthew Jacobs - [MoodMeter: Daily Moods](https://appshunter.io/ios/app/moodmeter-daily-moods/id6503926842) - [Lets Gym](https://appshunter.io/ios/app/lets-gym/id6651825407) All apps by Matthew Jacobs: https://appshunter.io/developer/1750387744 ## Related topics [cpu simulator](https://appshunter.io/ios/topics/cpu-simulator) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-05.*