# 格致 vs CoTime时伴

The clearest difference is update cadence: CoTime时伴 at weekly against 格致's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 格致 sells 3 one-off in-app purchases and CoTime时伴 sells 6 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

格致 ships an update monthly, CoTime时伴 weekly. The most recent releases landed on October 4, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | 格致 | CoTime时伴 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Size | 49 MB | 22 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [上海白镜信息网络科技有限公司](https://appshunter.io/developer/1576645416) | [Co-study Information Technology (Shanghai) Co., Ltd](https://appshunter.io/developer/1489845277) |

## What reviewers say

### 格致

[App page](https://appshunter.io/ios/app/id1576645294)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月费会员 | $3.99 | one-time |
| 年费会员 | $39.99 | one-time |
| 365天致友身份 | $39.99 | one-time |


### 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 格致 free?

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

### Is CoTime时伴 free?

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

### Do 格致 or CoTime时伴 have ads?

Neither 格致 nor CoTime时伴 shows ads.

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

格致 ships an update monthly, and CoTime时伴 weekly. Most recently, 格致 was updated on October 4, 2026 and CoTime时伴 on October 21, 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.*