# Arthur's Echo vs 念头清单

The clearest difference is in-app purchases: Arthur's Echo at none against 念头清单's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 念头清单 sells 2 in-app purchases, starting at $1.99 per 7 days. Arthur's Echo asks for nothing beyond the download.

## The numbers

| Metric | Arthur's Echo | 念头清单 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Monthly |
| Size | 64 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [JumpNote LLC](https://appshunter.io/developer/1871655998) | [岭 邹](https://appshunter.io/developer/1786385868) |

## What reviewers say

### Arthur's Echo

[App page](https://appshunter.io/ios/app/arthurs-echo/id6762941184)

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

**In-app purchases:** none


### 念头清单

[App page](https://appshunter.io/ios/app/id6764721718)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly PRO | $1.99 | per 7 days |
| Yearly PRO | $19.99 | per year |


## Frequently asked questions

### Is Arthur's Echo free?

Arthur's Echo is free to download, with no in-app purchases.

### Is 念头清单 free?

念头清单 is free to download, with in-app purchases available.

### Do Arthur's Echo or 念头清单 have ads?

Neither Arthur's Echo nor 念头清单 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.*