# RETRO FORTH vs OCaml

The clearest difference is in-app purchases: RETRO FORTH at none against OCaml's 3. RETRO FORTH also leads on iOS requirement (12.4 vs 15.0). OCaml's advantage is review sentiment (64% vs 33%) and ratings volume (17 vs 5). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. OCaml sells 3 one-off in-app purchases. RETRO FORTH asks for nothing beyond the download.

OCaml holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 5 and 17 respectively. Written reviews point the same way: 33% of RETRO FORTH's written reviews are positive against 64% of OCaml's.

Both ship on a similar rhythm, roughly monthly. Both last shipped on October 16, 2026.

## The numbers

| Metric | RETRO FORTH | OCaml |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (5 ratings)](https://appshunter.io/ios/app/retro-forth/id1170943580/reviews) | **[4.6 (17 ratings)](https://appshunter.io/ios/app/ocaml-learn-and-code/id1547506826/reviews)** |
| Number of ratings | 5 | **17** |
| Positive reviews | 33.3% of reviews | **64.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 38 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Charles Childers](https://appshunter.io/developer/900749636) | [Groupe MINASTE](https://appshunter.io/developer/1378426984) |

## What reviewers say

### RETRO FORTH

[App page](https://appshunter.io/ios/app/retro-forth/id1170943580)

A compact and adaptable concatenative programming language designed for ease of learning and customization. It features a code editor, interactive listener, and support for Gopher servers, allowing for flexible development.

**Highlights:** Concatenative programming language, Code editor with Markdown subset, Literate programming style, Interactive listener interface, Gopher server data fetching, File manager, Documentation browser

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

**In-app purchases:** none


### OCaml

[App page](https://appshunter.io/ios/app/ocaml-learn-and-code/id1547506826)

Learn and practice OCaml programming with an integrated editor and interactive top-level interpreter. This app provides offline functionality and step-by-step learning modules for variables, conditions, and loops, with new content added regularly.

**Highlights:** Integrated OCaml editor, Interactive top-level interpreter, Offline code execution, Step-by-step learning chapters, Customizable editor settings, Save and open .ml files

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donation 1 | $0.99 | one-time |
| Donation 2 | $2.99 | one-time |
| Donation 3 | $4.99 | one-time |


## Frequently asked questions

### Is RETRO FORTH free?

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

### Is OCaml free?

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

### Which has better reviews, RETRO FORTH or OCaml?

OCaml is rated higher. RETRO FORTH averages 4.4 out of 5 from 5 ratings, while OCaml averages 4.6 from 17 ratings.

### Do RETRO FORTH or OCaml have ads?

Neither RETRO FORTH nor OCaml shows ads.

### Which is updated more often, RETRO FORTH or OCaml?

RETRO FORTH ships an update monthly, and OCaml monthly. Most recently, RETRO FORTH was updated on October 16, 2026 and OCaml on October 16, 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.*