# 珍时 vs 矢量智云

The clearest difference is in-app purchases: 矢量智云 at none against 珍时's 15. 珍时's advantage is update cadence (fortnightly vs every 8 months) and device support. On price there is nothing between them.

Both are free to download. 珍时 sells 15 one-off in-app purchases. 矢量智云 asks for nothing beyond the download.

珍时 ships an update fortnightly, 矢量智云 every 8 months. The most recent releases landed on September 10, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | 珍时 | 矢量智云 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | **Fortnightly** | Every 8 months |
| Size | 321 MB | 181 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 17+ |
| Developer | [珍时信息技术(上海)有限公司](https://appshunter.io/developer/1464297277) | [Vector Cloud Science](https://appshunter.io/developer/1709256846) |

## What reviewers say

### 珍时

[App page](https://appshunter.io/ios/app/id1598064746)

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

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP周会员 | $1.99 | one-time |
| 演讲打卡周会员 | $2.99 | one-time |
| 读书会周会员 | $2.99 | one-time |
| 1个月VIP | $3.99 | one-time |
| SVIP周会员 | $3.99 | one-time |
| VIP月会员 | $3.99 | one-time |
| 演讲打卡月会员 | $4.99 | one-time |
| 读书会月会员 | $5.99 | one-time |
| SVIP月会员 | $7.99 | one-time |
| 3个月VIP | $8.99 | one-time |
| VIP年会员 | $14.99 | one-time |
| 读书会年会员 | $24.99 | one-time |
| 演讲打卡年会员 | $24.99 | one-time |
| 1年VIP | $29.99 | one-time |
| SVIP年会员 | $39.99 | one-time |


### 矢量智云

[App page](https://appshunter.io/ios/app/id6479678458)

**In-app purchases:** none


## Frequently asked questions

### Is 珍时 free?

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

### Is 矢量智云 free?

矢量智云 is free to download, with no in-app purchases.

### Which is updated more often, 珍时 or 矢量智云?

珍时 ships an update fortnightly, and 矢量智云 every 8 months. Most recently, 珍时 was updated on September 10, 2026 and 矢量智云 on September 8, 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.*