# Lucid Mind vs 久期

The clearest difference is in-app purchases: 久期 at none against Lucid Mind's 2. 久期 also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (10.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Lucid Mind sells 2 in-app purchases, starting at $12.99 per month. 久期 asks for nothing beyond the download.

Lucid Mind ships an update every 2 months, 久期 every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Lucid Mind | 久期 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/lucid-mind-brainstorm-ideas/id1603326488/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Subscription | — |
| Size | 29 MB | 90 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Kaan Yildiz](https://appshunter.io/developer/1473960483) | [Zhuhai JiuQi Digital Technology Co,LTD](https://appshunter.io/developer/1735134908) |

## What reviewers say

### 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 |


### 久期

[App page](https://appshunter.io/ios/app/id6479202498)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lucid Mind free?

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

### Is 久期 free?

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

### Do Lucid Mind or 久期 have ads?

Neither Lucid Mind nor 久期 shows ads.

### Which is updated more often, Lucid Mind or 久期?

Lucid Mind ships an update every 2 months, and 久期 every 3 weeks. Most recently, Lucid Mind was updated on October 24, 2026 and 久期 on October 25, 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.*