# Open Black Belt vs ScriptBuilder

The clearest difference is in-app purchases: Open Black Belt at none against ScriptBuilder's 6. Open Black Belt also leads on iOS requirement (15.2 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ScriptBuilder sells 6 in-app purchases, starting at $5.99 per month. Open Black Belt asks for nothing beyond the download.

Open Black Belt ships an update every 2 weeks, ScriptBuilder every 3 weeks. The most recent releases landed on September 30, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Open Black Belt | ScriptBuilder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (7 ratings)](https://appshunter.io/ios/app/scriptbuilder/id1358448790/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 35.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 23 MB |
| Requires iOS | **15.2** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [John Facey](https://appshunter.io/developer/1228026521) | [patrick ridd](https://appshunter.io/developer/1139632147) |

## What reviewers say

### Open Black Belt

[App page](https://appshunter.io/ios/app/open-black-belt/id1228026522)

**Features:** macOS Compatibility

**In-app purchases:** none


### ScriptBuilder

[App page](https://appshunter.io/ios/app/scriptbuilder/id1358448790)

Capture and develop screenplay ideas on the go. This app guides you through clarifying your movie concept, structuring your story arc with act builders, and fleshing out characters and scenes with targeted questions. Prepare to write compelling stories with a solid foundation.

**Highlights:** Idea clarification questions, Story arc structure (Act 1, 2, 3), Character development prompts, Scene building guidance, On-the-go idea capture

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access (1 Month) | $5.99 | per month |
| All Access (1 year) | $49.99 | per year |
| Character Builder | $0.99 | one-time |
| Scene Builder | $0.99 | one-time |
| No Ads | $1.99 | one-time |
| All Access (Lifetime) | $69.99 | one-time |


## Frequently asked questions

### Is Open Black Belt free?

Open Black Belt is free to download, with no in-app purchases.

### Is ScriptBuilder free?

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

### Do Open Black Belt or ScriptBuilder have ads?

Neither Open Black Belt nor ScriptBuilder shows ads.

### Which is updated more often, Open Black Belt or ScriptBuilder?

Open Black Belt ships an update every 2 weeks, and ScriptBuilder every 3 weeks. Most recently, Open Black Belt was updated on September 30, 2026 and ScriptBuilder on October 11, 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.*