# 叩心问 vs 洞察Todo

The clearest difference is in-app purchases: 洞察Todo at none against 叩心问's 2. 叩心问's advantage is iOS requirement (12.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. 叩心问 sells 2 in-app purchases, starting at $1.99 per month. 洞察Todo asks for nothing beyond the download.

## The numbers

| Metric | 叩心问 | 洞察Todo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Size | 51 MB | 1 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [卢 李](https://appshunter.io/developer/1805985900) | [永宏 李](https://appshunter.io/developer/1870878980) |

## What reviewers say

### 叩心问

[App page](https://appshunter.io/ios/app/id6747694509)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 叩心问月费 | $1.99 | per month |
| 叩心问年费 | $12.99 | per year |


### 洞察Todo

[App page](https://appshunter.io/ios/app/todo/id6758132380)

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

**In-app purchases:** none


## Frequently asked questions

### Is 叩心问 free?

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

### Is 洞察Todo free?

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

### Do 叩心问 or 洞察Todo have ads?

Neither 叩心问 nor 洞察Todo shows ads.

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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.*