# 知音楼HD vs 得到大脑（原Get笔记）

The clearest difference is in-app purchases: 知音楼HD at none against 得到大脑（原Get笔记）'s 2. 得到大脑（原Get笔记）'s advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. 得到大脑（原Get笔记） sells 2 in-app purchases, starting at $4.99 per month. 知音楼HD asks for nothing beyond the download.

知音楼HD ships an update fortnightly, 得到大脑（原Get笔记） weekly. The most recent releases landed on September 16, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | 知音楼HD | 得到大脑（原Get笔记） |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (45 ratings)](https://appshunter.io/ios/app/get-ai/id6711334436/reviews)** |
| Number of ratings | — | **45** |
| Positive reviews | — | 79.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | — | Freemium |
| Size | 595 MB | 230 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [亿度慧达教育科技(北京)有限公司](https://appshunter.io/developer/564755477) | [luojilab](https://appshunter.io/developer/927765679) |

## What reviewers say

### 知音楼HD

[App page](https://appshunter.io/ios/app/hd/id1523039519)

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

**In-app purchases:** none


### 得到大脑（原Get笔记）

[App page](https://appshunter.io/ios/app/get-ai/id6711334436)

This AI-powered app transforms your spoken ideas, recordings, images, and web links into structured, polished notes. It offers intelligent search to quickly find information within your notes and supports text refinement. Ideal for work, study, and personal life organization.

**Highlights:** AI voice recording to text, AI image to text recognition, AI web link content summarization, AI text refinement and error correction, Intelligent AI-powered search within notes, Structured note organization

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 得到大脑会员连续包月 | $4.99 | per month |
| 得到大脑会员连续包年 | $49.99 | per year |


## Frequently asked questions

### Is 知音楼HD free?

知音楼HD is free to download, with no in-app purchases.

### Is 得到大脑（原Get笔记） free?

得到大脑（原Get笔记） is free to download, with in-app purchases available.

### Do 知音楼HD or 得到大脑（原Get笔记） have ads?

Neither 知音楼HD nor 得到大脑（原Get笔记） shows ads.

### Which is updated more often, 知音楼HD or 得到大脑（原Get笔记）?

知音楼HD ships an update fortnightly, and 得到大脑（原Get笔记） weekly. Most recently, 知音楼HD was updated on September 16, 2026 and 得到大脑（原Get笔记） on September 26, 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.*