# 威碳云 vs OffTime

The clearest difference is iOS requirement: 威碳云 at 13.0 against OffTime's 17.0. On update cadence, ads, in-app purchases and device support there is nothing between them.

威碳云 ships an update weekly, OffTime fortnightly. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 威碳云 | OffTime |
| --- | --- | --- |
| Price | — | **Free** |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/id6502745263/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Size | 26 MB | 3 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [广州市威士丹利健康科技有限公司](https://appshunter.io/developer/1100577222) | [婷 李](https://appshunter.io/developer/1871717239) |

## What reviewers say

### 威碳云

[App page](https://appshunter.io/ios/app/id6502745263)

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

**In-app purchases:** none


### OffTime

[App page](https://appshunter.io/ios/app/offtime-world-clock-and-widget/id6794565774)

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

**In-app purchases:** none


## Frequently asked questions

### Is 威碳云 free?

Pricing for 威碳云 is not currently listed on the App Store.

### Is OffTime free?

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

### Do 威碳云 or OffTime have ads?

Neither 威碳云 nor OffTime shows ads.

### Which is updated more often, 威碳云 or OffTime?

威碳云 ships an update weekly, and OffTime fortnightly. Most recently, 威碳云 was updated on October 24, 2026 and OffTime on October 10, 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.*