# VirtualKim - 6502 Emulator — Coding like it's meant to be. > 6502 microprocessor emulator with assembler and programming puzzles for education. (iPhone/iPad app by John Kennedy.) - Source: https://appshunter.io/ios/app/virtualkim-6502-emulator/id1548356829 (this page in markdown: same URL + `.md`) - Developer: [John Kennedy](https://appshunter.io/developer/284943103) - Category: Education, Developer Tools - Price: Free with in-app purchases - Rating: 4.80/5 from 29 App Store ratings · 16 written reviews indexed - Age rating: 4+ - Requires: iOS 17.0 · 72 MB - Languages: American English - Released: 2021-05-10 - Data updated: 2026-08-08 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/virtualkim-6502-emulator/id1548356829/reviews.md ## What is VirtualKim? The 6502 microprocessor changed the world. Released in the 1970’s, it was the reason that home computers were within the reach of many hobbyists. This app re-creates the 6502 CPU and some of the hardware that used it. This isn't a game (although games are included), this is an emulation of the 8-bit processor, complete with an assembler and some programming puzzles to solve. Start with the most basic user interface you can imagine - six 7-segment LEDs and some buttons - to enter, debug and run your applications. Then upgrade to a display and keyboard, and use the built-in monitor program to dump memory, makes edits and execute your code. Can you run BASIC? Maybe. FORTH? Perhaps. Assembler? Definitely! Don't think of this as a something "fun" or "enjoyable" in the traditional sense. Think of it as a puzzle: how on earth did those folks in the 1970's manage to do ANYTHING when computers were this basic? Documentation is provided, but to get the most of out of this app you'll need to do your own research. Just like in the 1970s. Features - KIM-1 keypad/LED mode simulator. - KIM-1 serial terminal mode simulator. - Apple 1 serial terminal mode simulator. - Multiple programs including Life, Mastermind, word games, Trek, and more. - Working 6502 Assembler with single-step, memory and register view. - A comprehensive 6502 tutorial system with interactive lessons and reference material. - Shareware! All features are always available without a purchase. ## Key features - 6502 CPU emulation - Built-in assembler - Programming puzzles - Minimalist UI with LEDs and buttons - Monitor program for memory editing - Debug and run applications ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Buy Me a Coffee | $0.99 | one-time | ## Recent user reviews (10 of 16) All indexed reviews: https://appshunter.io/ios/app/virtualkim-6502-emulator/id1548356829/reviews.md ### 5/5 — Works on Mac *2026-05-30* This simulator appears to work great on my M3 MacBook Air. Nice emulator! ### 5/5 — Great app *2025-09-23, version 2.0* I want to start by thanking John Kennedy for making this app, he put probably countless hours into making an educational tool. Not only that but he made it completely free so thank you! The app is a great representation of some old computers and it really gives you a sense of what it would be like to use them back when they came out. My only gripe is on my 14 pro it does seem to heat up my phone a bit on the kim simulator, I haven’t tried any other modes. Regardless I absolutely love the app and again thank you John! ### 5/5 — A Brilliant Tribute to Chuck Peddle, Jim Butterfield, and Steve Wozniak! *2025-09-12* I absolutely love this app. The description is hilarious and the manual (Readme.txt) is a fun read and a fantastic asset. As an “80’s kid” whose first 6502 experience was the Atari 2600, it was really fun to learn to use the legendary KIM-1. Lunar Lander is a blast on the keypad UI! The only issue I encountered was with the terminal interface. While the vintage-style keyboard layout looks awesome, I found it difficult to use for any nontrivial typing. I also wished for system keyboard features and support for landscape mode. Perhaps this is as it should be, as I find it equally difficult to type on vintage keyboards from the '70s and '80s. In any case, I don’t want to look a gift horse in the mouth, as this app is packed with a ton of great retro-computing functionality for ZERO COST. As a developer myself, I know the dedication and labor it takes to produce an app like this—I developed WOZNIAC-1 to address the issues I had with the VK terminal UI, and that has taken as much effort as my previous full-time job. Many thanks to John for putting in the effort to create this! ### 5/5 — A Brilliant Tribute to Chuck Peddle, Jim Butterfield, and Steve Wozniak! *2025-09-08* I absolutely love this app. The description is hilarious and the manual (Readme.txt) is a fun read and a fantastic asset. As an “80’s kid” whose first 6502 experience was the Atari 2600, it was really fun to learn to use the legendary KIM-1. Lunar Lander is a blast on the keypad UI! The only issue I encountered was with the terminal interface. While the vintage-style keyboard layout looks awesome, I found it difficult to use for any nontrivial typing. I also wished for system keyboard features and support for landscape mode. Perhaps this is as it should be, as I find it equally difficult to type on vintage keyboards from the '70s and '80s. In any case, I don’t want to look a gift horse in the mouth, as this app is packed with a ton of great retro-computing functionality for ZERO COST. As a developer myself, I know the dedication and labor it takes to produce an app like this—I developed WOZNIAC-1 to address the issues I had with the VK terminal UI, and that has taken as much effort as my previous full-time job. Many thanks to John for putting in the effort to create this! ### 5/5 — Wow this is great! *2025-01-24* I’ve had this around for a very long time, but I must have seen something about the Kim and revisited this app - wow, this is awesome! You can revisit the glory days and actually program and run this to see what it was like to be on a computer back then. I can only imagine how crazy it must have been to play lunar lander in the 1970s…very awesome! ### 5/5 — Amazing *2024-03-02* In the Age of Ancients the world was unformed, shrouded by fog. A land of gray crags, Archtrees and Everlasting Dragons. But then there was Fire. And with fire came disparity. Heat and cold, life and death, and of course, light and dark. Then from the dark, They came, and found the Souls of Lords within the flame. Nito, the First of the Dead, The Witch of Izalith and her Daughters of Chaos, Gwyn, the Lord of Sunlight, and his faithful knights. And the Furtive Pygmy, so easily forgotten. With the strength of Lords, they challenged the Dragons. Gwyn's mighty bolts peeled apart their stone scales. The Witches weaved great firestorms. Nito unleashed a miasma of death and disease. And Seath the Scaleless betrayed his own, and the Dragons were no more. Thus began the Age of Fire. But soon the flames will fade and only Dark will remain. Even now there are only embers, and man sees not light, but only endless nights. And amongst the living are seen, carriers of the accursed Darksign. Yes, indeed. The Darksign brands the Undead. And in this land, the Undead are corralled and led to the north, where they are locked away, to await the end of the world... This is your fate. Only, in the ancient legends it is stated, that one day an undead shall be chosen to leave the undead asylum, in pilgrimage, to the land of ancient lords, Lordran. ### 3/5 — Quite broken on iPad *2023-12-23, version 1.20* Most of the buttons like Files/Rest just don't work on iPad. Also, assembly source editor would definitely benefit from syntax highlighting. ### 5/5 — Amazing retro computing for iOS *2023-11-05* This takes me back to my first 6502. Obviously crafted with much passion and nostalgia for the early home computing era. Thanks John! ### 3/5 — Qwerty keyboard too wide on iPhone. *2023-07-02* Great app, but the QWERTY keyboard is too wide to fit on my iPhone XR in the KIM-1 and Apple-1 emulators which makes it unusable. ### 4/5 — Great app but some bugs… *2022-10-23* Is the developer accepting bug reports? If so, how? ## Frequently asked questions about VirtualKim ### What is VirtualKim? VirtualKim is an educational app that emulates the 6502 microprocessor, a key component in 1970s home computers. It includes an assembler and programming puzzles to help users understand how early computing worked. ### What programming languages can I use with VirtualKim? VirtualKim primarily focuses on assembler programming. While it doesn't directly support languages like BASIC or FORTH, users can explore these possibilities through the emulation environment. ### Does VirtualKim have ads? No, VirtualKim does not contain advertisements. It is a free application with optional in-app purchases. ### What devices is VirtualKim available on? VirtualKim is available for iPhone and iPad devices, allowing users to learn and experiment with 6502 emulation on their Apple mobile devices. ### How often is VirtualKim updated? The latest version of VirtualKim is 2.4, and it was last updated on March 25, 2026. This indicates a commitment to ongoing development and improvements. ### What is the age rating for VirtualKim? VirtualKim has an age rating of 4+, making it suitable for a wide range of users interested in learning about historical computing and programming. ### Does VirtualKim offer certifications for learning? VirtualKim is designed as a learning tool for understanding 6502 assembly and historical computing. It does not currently offer formal certifications for completing its programming puzzles or educational content. ### How does VirtualKim help track learning progress? VirtualKim provides programming puzzles and a functional emulation environment. Progress is tracked by the user's ability to solve these puzzles and successfully write and debug code within the emulator. ## Version history (last 5 releases) ### 2.9.7 — 2026-07-22 Watch app updates; register view in assembler, more sample code, and other minor tweaks. ### 2.9.6 — 2026-07-18 Updated the Apple Watch companion app. ### 2.9.5 — 2026-07-16 Fixed bugs in Apple Watch app related to games Added KIM-1 Monitor Reference ### 2.9.4 — 2026-07-15 Added a '#' key to the AIM-65 on-screen keyboard (because of emulation, standard keyboard user interface cannot be used) Optimized the 6502 CPU emulation to use less power. Watch app updated with some period-correct games! ### 2.9.3 — 2026-07-13 Corrected some bugs with the AIM-65 emulation. Sorry, AIM-65 fan(s)! Monitor program should be working properly now. ## Apps similar to VirtualKim | App | Rating | Price | Category | | --- | --- | --- | --- | | [The Assembler](https://appshunter.io/ios/app/the-assembler/id1631691804) | 4.8 (10) | Free | Education | | [PockEmul](https://appshunter.io/ios/app/pockemul/id1550150838) | 4.3 (11) | Free | Education | | [Little Man Computer](https://appshunter.io/ios/app/little-man-computer/id1174092777) | 4.3 (6) | Free | Education | | [Hand BASIC - CBM Flavor](https://appshunter.io/ios/app/hand-basic-cbm-flavor/id394924289) | 4.4 (45) | Free | Education | | [cl-repl](https://appshunter.io/ios/app/cl-repl/id1511296102) | 4.9 (21) | Free | Education | | [iAltair](https://appshunter.io/ios/app/ialtair/id291182085) | 4.8 (18) | Free | Education | ## More apps by John Kennedy - [Pocket Universe](https://appshunter.io/ios/app/pocket-universe/id306916838) - [What's Up?](https://appshunter.io/ios/app/whats-up/id393023070) - [Sky Time](https://appshunter.io/ios/app/sky-time/id473539346) - [Spelling Test](https://appshunter.io/ios/app/spelling-test/id478561217) - [Asstrology - Your Future Is Behind You](https://appshunter.io/ios/app/asstrology-your-future-is-behind-you/id486930635) - [Pocket Universe Classic](https://appshunter.io/ios/app/pocket-universe-classic/id567184849) All apps by John Kennedy: https://appshunter.io/developer/284943103 --- *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 2026-08-08.*