# Kim6502 vs ControlsLab

Kim6502 and ControlsLab are too close to call on the numbers: across 8 compared parameters — price, rating, ratings volume and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Kim6502 sells 1 in-app purchase, starting at $5.99 per year and ControlsLab sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Kim6502 against 5.0 for ControlsLab. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

## The numbers

| Metric | Kim6502 | ControlsLab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/kim6502/id6745513214/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/controlslab/id6763078520/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 1 MB | 1 MB |
| Requires iOS | **18.0** | 18.5 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Michael Herman](https://appshunter.io/developer/1674431432) | [Pedro Resto](https://appshunter.io/developer/1895152088) |

## 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 |


### ControlsLab

[App page](https://appshunter.io/ios/app/controlslab/id6763078520)

This app offers a professional-grade simulator for system dynamics and control systems. It allows users to visualize and interact with mass-spring-damper systems and control loops without coding. Explore parameters, inputs, and analysis modes with real-time visual feedback.

**Highlights:** Real-time system simulation, Parameter adjustment with sliders, Live time-domain response plot, S-plane pole visualization, Open-loop and closed-loop modes, PID controller tuning, Bode plot analysis

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ControlsLab Pro | $4.99 | one-time |


## Frequently asked questions

### Is Kim6502 free?

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

### Is ControlsLab free?

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

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

Kim6502 and ControlsLab are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Kim6502 or ControlsLab have ads?

Neither Kim6502 nor ControlsLab shows ads.

---

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