# KnowledgeBase Builder vs OpenIndex

The clearest difference is price: OpenIndex at Free against KnowledgeBase Builder's $8.99. OpenIndex also leads on iOS requirement (13.4 vs 15.0). KnowledgeBase Builder's advantage is device support. On in-app purchases there is nothing between them.

OpenIndex is free to download; KnowledgeBase Builder costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | KnowledgeBase Builder | OpenIndex |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | **[4.7 (24 ratings)](https://appshunter.io/ios/app/knowledgebase-builder/id1448579863/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 90.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Fortnightly | — |
| Monetization | Paid | — |
| Size | 21 MB | 29 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Ingo Straub](https://appshunter.io/developer/1398145160) | [Tito Costa](https://appshunter.io/developer/568927465) |

## What reviewers say

### KnowledgeBase Builder

[App page](https://appshunter.io/ios/app/knowledgebase-builder/id1448579863)

Organize and search text documents and web pages with links within a mind map structure. Automatically create mind maps from text, import Wikipedia articles, and export your knowledge base as HTML. Also functions as a flowcharting tool.

**Highlights:** Save text documents and web pages, Full-text search, Organize with mind maps, Automatic mind map creation, Wikipedia import, Export to HTML, Flowcharting tool

**Features:** Vision Pro support

**In-app purchases:** none


### OpenIndex

[App page](https://appshunter.io/ios/app/openindex-docs-scan-and-ai-chat/id6736521239)

**In-app purchases:** none


## Frequently asked questions

### Is KnowledgeBase Builder free?

KnowledgeBase Builder costs $8.99, with no in-app purchases.

### Is OpenIndex free?

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

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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.*