# KnowledgeBase Builder vs Lucid Mind

The clearest difference is review sentiment: KnowledgeBase Builder at 91% against Lucid Mind's 0%. KnowledgeBase Builder also leads on rating (4.7 vs 3.7) and in-app purchases (none vs 2). Lucid Mind's advantage is price (Free vs $8.99). On ads, device support and iOS requirement there is nothing between them.

Lucid Mind is free to download; KnowledgeBase Builder costs $8.99 up front. Lucid Mind sells 2 in-app purchases, starting at $12.99 per month. KnowledgeBase Builder asks for nothing beyond the download.

KnowledgeBase Builder holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: KnowledgeBase Builder has 24 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 91% of KnowledgeBase Builder's written reviews are positive against 0% of Lucid Mind's.

KnowledgeBase Builder ships an update fortnightly, Lucid Mind every 2 months. The most recent releases landed on September 7, 2026 and August 27, 2026 respectively.

## The numbers

| Metric | KnowledgeBase Builder | Lucid Mind |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | **[4.7 (24 ratings)](https://appshunter.io/ios/app/knowledgebase-builder/id1448579863/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/lucid-mind-brainstorm-ideas/id1603326488/reviews) |
| Number of ratings | **24** | 3 |
| Positive reviews | **90.9% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | **Paid** | Subscription |
| Size | 21 MB | 29 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ingo Straub](https://appshunter.io/developer/1398145160) | [Kaan Yildiz](https://appshunter.io/developer/1473960483) |

## 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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Lucid Mind

[App page](https://appshunter.io/ios/app/lucid-mind-brainstorm-ideas/id1603326488)

This app provides a peaceful digital space for organizing thoughts, storing ideas, and receiving insights from others. It offers a calming interface designed for night use, allowing users to express themselves freely and anonymously.

**Highlights:** Organize thoughts and ideas, Anonymous idea sharing, Receive insights from competent users, Peaceful night-time interface, Thought visualization as stars, Mind area for concept mapping

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Night Thought Monthly | $12.99 | per month |
| Night Thought Yearly | $59.99 | per year |


## Frequently asked questions

### Is KnowledgeBase Builder free?

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

### Is Lucid Mind free?

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

### Which has better reviews, KnowledgeBase Builder or Lucid Mind?

KnowledgeBase Builder is rated higher. KnowledgeBase Builder averages 4.7 out of 5 from 24 ratings, while Lucid Mind averages 3.7 from 3 ratings.

### Do KnowledgeBase Builder or Lucid Mind have ads?

Neither KnowledgeBase Builder nor Lucid Mind shows ads.

### Which is updated more often, KnowledgeBase Builder or Lucid Mind?

KnowledgeBase Builder ships an update fortnightly, and Lucid Mind every 2 months. Most recently, KnowledgeBase Builder was updated on September 7, 2026 and Lucid Mind on August 27, 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.*