# 火星探索者 vs KD App

The clearest difference is update cadence: KD App at monthly against 火星探索者's every 17 months. 火星探索者's advantage is iOS requirement (11.0 vs 13.0). 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, KD App monthly. The most recent releases landed on June 4, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | 火星探索者 | KD App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Monthly** |
| Size | 128 MB | 49 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Shenzhen Du Chongyang Trading Co., Ltd](https://appshunter.io/developer/1454881718) | [Shenzhen Jinda Intelligence Innovation Technology Co., Ltd.](https://appshunter.io/developer/1700863606) |

## What reviewers say

### 火星探索者

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

**Features:** macOS Compatibility

**In-app purchases:** none


### KD App

[App page](https://appshunter.io/ios/app/kd-app/id6615067013)

**Features:** macOS Compatibility

**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 KD App free?

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

### Do 火星探索者 or KD App have ads?

Neither 火星探索者 nor KD App shows ads.

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

火星探索者 ships an update every 17 months, and KD App monthly. Most recently, 火星探索者 was updated on June 4, 2026 and KD App on September 14, 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.*