# OCaml vs AnnotateIt AI

The clearest difference is in-app purchases: AnnotateIt AI at none against OCaml's 3. OCaml's advantage is update cadence (monthly vs every 11 months). On price, ads, device support and iOS requirement there is nothing between them.

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

OCaml ships an update monthly, AnnotateIt AI every 11 months. The most recent releases landed on September 21, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | OCaml | AnnotateIt AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (17 ratings)](https://appshunter.io/ios/app/ocaml-learn-and-code/id1547506826/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 64.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 11 months |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 95 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod, Mac | iPhone, iPad, iPod, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Groupe MINASTE](https://appshunter.io/developer/1378426984) | [Yury Volokitin](https://appshunter.io/developer/1835141574) |

## 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 |


### AnnotateIt AI

[App page](https://appshunter.io/ios/app/annotateit-ai/id6751442622)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OCaml free?

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

### Is AnnotateIt AI free?

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

### Do OCaml or AnnotateIt AI have ads?

Neither OCaml nor AnnotateIt AI shows ads.

### Which is updated more often, OCaml or AnnotateIt AI?

OCaml ships an update monthly, and AnnotateIt AI every 11 months. Most recently, OCaml was updated on September 21, 2026 and AnnotateIt AI on September 20, 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.*