# 窄门 vs CoTime时伴

The clearest difference is in-app purchases: 窄门 at none against CoTime时伴's 6. CoTime时伴's advantage is update cadence (weekly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CoTime时伴 sells 6 in-app purchases, starting at $1.99 per month. 窄门 asks for nothing beyond the download.

窄门 ships an update every 2 months, CoTime时伴 weekly. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 窄门 | CoTime时伴 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Size | 27 MB | 22 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Shenzhen Xinxing Technology Co., Ltd.](https://appshunter.io/developer/1121926984) | [Co-study Information Technology (Shanghai) Co., Ltd](https://appshunter.io/developer/1489845277) |

## What reviewers say

### 窄门

[App page](https://appshunter.io/ios/app/id1503692547)

**In-app purchases:** none


### CoTime时伴

[App page](https://appshunter.io/ios/app/cotime/id6475029619)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续订阅包月 | $1.99 | per month |
| 连续订阅包季 | $3.99 | per 3 months |
| 连续订阅包年 | $7.99 | per year |
| 购买会员-3个月 | $5.99 | one-time |
| 购买会员-1年 | $14.99 | one-time |
| 购买会员-3年 | $17.99 | one-time |


## Frequently asked questions

### Is 窄门 free?

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

### Is CoTime时伴 free?

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

### Do 窄门 or CoTime时伴 have ads?

Neither 窄门 nor CoTime时伴 shows ads.

### Which is updated more often, 窄门 or CoTime时伴?

窄门 ships an update every 2 months, and CoTime时伴 weekly. Most recently, 窄门 was updated on October 25, 2026 and CoTime时伴 on October 30, 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.*