# JotIt by Qishan Lab vs Second Brain

The clearest difference is iOS requirement: JotIt by Qishan Lab at 17.0 against Second Brain's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | JotIt by Qishan Lab | Second Brain |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Size | 10 MB | 37 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Qishan Cultural Communication Co., Ltd.](https://appshunter.io/developer/1891134548) | [kim dahye](https://appshunter.io/developer/1868391710) |

## What reviewers say

### JotIt by Qishan Lab

[App page](https://appshunter.io/ios/app/jotit-by-qishan-lab/id6764322744)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Second Brain

[App page](https://appshunter.io/ios/app/second-brain-ai-note/id6799343264)

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

**In-app purchases:** none


## Frequently asked questions

### Is JotIt by Qishan Lab free?

JotIt by Qishan Lab is free to download, with no in-app purchases.

### Is Second Brain free?

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

### Do JotIt by Qishan Lab or Second Brain have ads?

Neither JotIt by Qishan Lab nor Second Brain shows ads.

### Which is updated more often, JotIt by Qishan Lab or Second Brain?

JotIt by Qishan Lab ships an update monthly, and Second Brain monthly. Most recently, JotIt by Qishan Lab was updated on October 24, 2026 and Second Brain on October 24, 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.*