# Lucid vs ConstruxAi

The clearest difference is in-app purchases: Lucid at none against ConstruxAi's 2. ConstruxAi's advantage is update cadence (every 2 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ConstruxAi sells 2 in-app purchases, starting at $19.99 per month. Lucid asks for nothing beyond the download.

Lucid ships an update every 2 weeks, ConstruxAi every 2 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Lucid | ConstruxAi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/lucid-notes-and-outlines/id6760377356/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Free | — |
| Size | 5 MB | 1 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [illia chaban](https://appshunter.io/developer/1875606183) | [CLIFFORD MICHAEL SYNER IV](https://appshunter.io/developer/6773060029) |

## What reviewers say

### Lucid

[App page](https://appshunter.io/ios/app/lucid-notes-and-outlines/id6760377356)

This app offers a minimalist and intuitive note-taking experience, allowing users to organize thoughts with fluid, block-based editing. It features gesture-driven navigation and unique caret movement for efficient idea connection and management.

**Highlights:** Minimalist and intuitive design, Block-based editing for organizing ideas, Gesture-driven navigation, Bookmark any section, Unique caret movement with spacebar

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

**In-app purchases:** none


### ConstruxAi

[App page](https://appshunter.io/ios/app/construxai-building-codes/id6774312310)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ConstruxAi Pro | $19.99 | per month |
| ConstruxAi Max | $99.99 | per month |


## Frequently asked questions

### Is Lucid free?

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

### Is ConstruxAi free?

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

### Do Lucid or ConstruxAi have ads?

Neither Lucid nor ConstruxAi shows ads.

### Which is updated more often, Lucid or ConstruxAi?

Lucid ships an update every 2 weeks, and ConstruxAi every 2 days. Most recently, Lucid was updated on November 5, 2026 and ConstruxAi on October 31, 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.*