# RealXV6 vs pocketFORTH

The clearest difference is update cadence: pocketFORTH at every 3 weeks against RealXV6's every 4 months. pocketFORTH also leads on iOS requirement (15.6 vs 17.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RealXV6 ships an update every 4 months, pocketFORTH every 3 weeks. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | RealXV6 | pocketFORTH |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/realxv6/id6757357040/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 15 MB | 1 MB |
| Requires iOS | 17.2 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zheng Fang](https://appshunter.io/developer/1258046278) | [Leonardo Del Nonno](https://appshunter.io/developer/1813215809) |

## What reviewers say

### 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


### pocketFORTH

[App page](https://appshunter.io/ios/app/pocketforth/id6774230596)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is RealXV6 free?

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

### Is pocketFORTH free?

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

### Do RealXV6 or pocketFORTH have ads?

Neither RealXV6 nor pocketFORTH shows ads.

### Which is updated more often, RealXV6 or pocketFORTH?

RealXV6 ships an update every 4 months, and pocketFORTH every 3 weeks. Most recently, RealXV6 was updated on October 12, 2026 and pocketFORTH on October 7, 2026.

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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.*