# 绫云PIM vs When Did I Sleep

The clearest difference is in-app purchases: 绫云PIM at none against When Did I Sleep's 1. 绫云PIM also leads on device support (3 vs 1) and iOS requirement (13.4 vs 17.6). On price and ads there is nothing between them.

Both are free to download. When Did I Sleep sells 1 one-off in-app purchase. 绫云PIM asks for nothing beyond the download.

## The numbers

| Metric | 绫云PIM | When Did I Sleep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 26 MB | 7 MB |
| Requires iOS | **13.4** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [杭州其乐融融科技有限公司](https://appshunter.io/developer/1546046259) | [优贤 刘](https://appshunter.io/developer/6777862714) |

## What reviewers say

### 绫云PIM

[App page](https://appshunter.io/ios/app/pim/id6443484979)

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

**In-app purchases:** none


### When Did I Sleep

[App page](https://appshunter.io/ios/app/when-did-i-sleep/id6778288048)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro | $2.99 | one-time |


## Frequently asked questions

### Is 绫云PIM free?

绫云PIM is free to download, with no in-app purchases.

### Is When Did I Sleep free?

When Did I Sleep is free to download, with in-app purchases available.

### Do 绫云PIM or When Did I Sleep have ads?

Neither 绫云PIM nor When Did I Sleep 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.*