# OCaml vs Rust IDE

The clearest difference is price: OCaml at Free against Rust IDE's $0.99. OCaml also leads on rating (4.6 vs 2.5) and review sentiment (64% vs 22%). Rust IDE's advantage is in-app purchases (none vs 3) and update cadence (every 9 days vs monthly). On ratings volume, ads, device support and iOS requirement there is nothing between them.

OCaml is free to download; Rust IDE costs $0.99 up front. OCaml sells 3 one-off in-app purchases. Rust IDE asks for nothing beyond the download.

OCaml holds the better App Store score, 4.6 against 2.5. Both are backed by a comparable volume of ratings — 17 and 6 respectively. Written reviews point the same way: 64% of OCaml's written reviews are positive against 22% of Rust IDE's.

OCaml ships an update monthly, Rust IDE every 9 days. Both last shipped on September 21, 2026.

## The numbers

| Metric | OCaml | Rust IDE |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.6 (17 ratings)](https://appshunter.io/ios/app/ocaml-learn-and-code/id1547506826/reviews)** | [2.5 (6 ratings)](https://appshunter.io/ios/app/rust-ide-minimal-code/id6474973643/reviews) |
| Number of ratings | **17** | 6 |
| Positive reviews | **64.0% of reviews** | 22.2% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 9 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#151** |
| Size | 38 MB | 3 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Groupe MINASTE](https://appshunter.io/developer/1378426984) | [Gansu Zhenxian Network Technology Co., Ltd.](https://appshunter.io/developer/1616881226) |

## What reviewers say

### 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 |


### Rust IDE

[App page](https://appshunter.io/ios/app/rust-ide-minimal-code/id6474973643)

**Currently charting:** #151 Top Paid · Developer Tools (US App Store)

A mobile tool for developing, testing, and learning the Rust programming language on the go. It offers a streamlined environment for coding anytime, anywhere.

**Highlights:** Mobile Rust development, Code testing, Learning Rust, Anytime, anywhere access, Minimalist interface

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

**In-app purchases:** none


## Frequently asked questions

### Is OCaml free?

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

### Is Rust IDE free?

Rust IDE costs $0.99, with no in-app purchases.

### Which has better reviews, OCaml or Rust IDE?

OCaml is rated higher. OCaml averages 4.6 out of 5 from 17 ratings, while Rust IDE averages 2.5 from 6 ratings.

### Do OCaml or Rust IDE have ads?

Neither OCaml nor Rust IDE shows ads.

### Which is updated more often, OCaml or Rust IDE?

OCaml ships an update monthly, and Rust IDE every 9 days. Most recently, OCaml was updated on September 21, 2026 and Rust IDE on September 21, 2026.

---

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