# Kim6502 vs RealXV6

The clearest difference is in-app purchases: RealXV6 at none against Kim6502's 1. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Kim6502 sells 1 in-app purchase, starting at $5.99 per year. RealXV6 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Kim6502 against 5.0 for RealXV6. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

## The numbers

| Metric | Kim6502 | RealXV6 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/kim6502/id6745513214/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/realxv6/id6757357040/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 4 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 1 MB | 15 MB |
| Requires iOS | 18.0 | **17.2** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Michael Herman](https://appshunter.io/developer/1674431432) | [Zheng Fang](https://appshunter.io/developer/1258046278) |

## What reviewers say

### Kim6502

[App page](https://appshunter.io/ios/app/kim6502/id6745513214)

This app simulates the KIM-1 single-board computer from 1976, featuring a 6502 microprocessor. Users can enter and run machine code, with programs starting at 0x0200 and a virtual tape for saving work. It includes built-in instructions for guidance.

**Highlights:** KIM-1 computer emulation, 6502 microprocessor simulation, Machine code entry and execution, Program storage up to 0x0200 bytes, Virtual tape for saving work, Included instructions

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kim6502 annual subscription | $5.99 | per year |


### RealXV6

[App page](https://appshunter.io/ios/app/realxv6/id6757357040)

Explore the legendary Lions' Commentary on UNIX 6th Edition by bringing its source code to life. This app provides an interactive virtual machine to dynamically experience OS kernel operations, offering source-level debugging and precise execution control for a deeper understanding.

**Highlights:** Interactive virtual machine for OS study, Source-level debugging, Precise execution control (step in, over, out), Trace context switching and interrupts, Simplified 8086 architecture, Portable OS laboratory

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kim6502 free?

Kim6502 is free to download, with in-app purchases available.

### Is RealXV6 free?

RealXV6 is free to download, with no in-app purchases.

### Which has better reviews, Kim6502 or RealXV6?

Kim6502 and RealXV6 are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Kim6502 or RealXV6 have ads?

Neither Kim6502 nor RealXV6 shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*