# eigenCalc vs Kim6502

The clearest difference is in-app purchases: eigenCalc at none against Kim6502's 1. eigenCalc also leads on iOS requirement (15.5 vs 18.0). On price, ads and device support there is nothing between them.

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

## The numbers

| Metric | eigenCalc | Kim6502 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kim6502/id6745513214/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 1 MB |
| Requires iOS | **15.5** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Luis Acevedo-Arreguin](https://appshunter.io/developer/1642773653) | [Michael Herman](https://appshunter.io/developer/1674431432) |

## What reviewers say

### eigenCalc

[App page](https://appshunter.io/ios/app/eigencalc/id6503222785)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is eigenCalc free?

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

### Is Kim6502 free?

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

### Do eigenCalc or Kim6502 have ads?

Neither eigenCalc nor Kim6502 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.*