# 洞察Todo vs 衡熵

The clearest difference is in-app purchases: 洞察Todo at none against 衡熵's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 衡熵 sells 3 in-app purchases, starting at $0.99 per month. 洞察Todo asks for nothing beyond the download.

## The numbers

| Metric | 洞察Todo | 衡熵 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Size | 1 MB | 14 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [永宏 李](https://appshunter.io/developer/1870878980) | [玉庭 何](https://appshunter.io/developer/1867438392) |

## What reviewers say

### 洞察Todo

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

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

**In-app purchases:** none


### 衡熵

[App page](https://appshunter.io/ios/app/id6761233174)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 自律锁月度订阅 | $0.99 | per month |
| 自律锁年度订阅 | $3.99 | per year |
| 自律锁终身解锁 | $12.99 | one-time |


## Frequently asked questions

### Is 洞察Todo free?

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

### Is 衡熵 free?

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

### Do 洞察Todo or 衡熵 have ads?

Neither 洞察Todo nor 衡熵 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.*