# 小黑 OmniBox vs 脑花

The clearest difference is update cadence: 小黑 OmniBox at weekly against 脑花's every 5 weeks. 小黑 OmniBox also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 小黑 OmniBox sells 7 one-off in-app purchases and 脑花 sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

小黑 OmniBox ships an update weekly, 脑花 every 5 weeks. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 小黑 OmniBox | 脑花 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/omnibox/id6758195223/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 5 weeks |
| Monetization | Free | — |
| Size | 91 MB | 63 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Hangzhou Xiaohei Intelligent Technology Co. Ltd](https://appshunter.io/developer/1854656540) | [Cephalon Limited](https://appshunter.io/developer/1893219446) |

## What reviewers say

### 小黑 OmniBox

[App page](https://appshunter.io/ios/app/omnibox/id6758195223)

This AI-powered tool helps you manage information overload by collecting, organizing, and retrieving your digital content. It acts as a personal knowledge manager, offering features like web page saving, file uploads, and AI-driven Q&A based on your private data.

**Highlights:** AI-powered knowledge management, One-click whole-web collection, Multi-format file uploads, AI-driven Q&A on private knowledge base, Intelligent semantic search, Multi-device synchronization, Flexible sharing options

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Add-ons | $0.99 | one-time |
| Upgrade | $0.99 | one-time |
| Upgrade | $1.99 | one-time |
| Upgrade | $5.99 | one-time |
| Upgrade | $8.99 | one-time |
| Upgrade | $14.99 | one-time |
| Upgrade | $59.99 | one-time |


### 脑花

[App page](https://appshunter.io/ios/app/agent/id6762169454)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7000 脑力值 | $0.99 | one-time |
| 28840 脑力值 | $5.99 | one-time |
| 50470 脑力值 | $9.99 | one-time |
| 72100 脑力值 | $14.99 | one-time |
| 220500 脑力值 | $39.99 | one-time |
| 367500 脑力值 | $69.99 | one-time |
| 529200 脑力值 | $99.99 | one-time |
| 680400 脑力值 | $129.99 | one-time |
| 756000 脑力值 | $149.99 | one-time |


## Frequently asked questions

### Is 小黑 OmniBox free?

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

### Is 脑花 free?

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

### Do 小黑 OmniBox or 脑花 have ads?

Neither 小黑 OmniBox nor 脑花 shows ads.

### Which is updated more often, 小黑 OmniBox or 脑花?

小黑 OmniBox ships an update weekly, and 脑花 every 5 weeks. Most recently, 小黑 OmniBox was updated on October 8, 2026 and 脑花 on October 6, 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.*