# 火星探索者 vs OffTime

The clearest difference is update cadence: OffTime at fortnightly against 火星探索者's every 17 months. 火星探索者's advantage is iOS requirement (11.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

火星探索者 ships an update every 17 months, OffTime fortnightly. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 火星探索者 | OffTime |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Fortnightly** |
| Size | 128 MB | 3 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Du Chongyang Trading Co., Ltd](https://appshunter.io/developer/1454881718) | [婷 李](https://appshunter.io/developer/1871717239) |

## What reviewers say

### 火星探索者

[App page](https://appshunter.io/ios/app/id1535921982)

**Features:** macOS Compatibility

**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 火星探索者 free?

火星探索者 is free to download, with no in-app purchases.

### Is OffTime free?

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

### Do 火星探索者 or OffTime have ads?

Neither 火星探索者 nor OffTime shows ads.

### Which is updated more often, 火星探索者 or OffTime?

火星探索者 ships an update every 17 months, and OffTime fortnightly. Most recently, 火星探索者 was updated on October 20, 2026 and OffTime on October 24, 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.*