# MZD数字钥匙 vs NubDeck

The clearest difference is iOS requirement: MZD数字钥匙 at 12.0 against NubDeck's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

MZD数字钥匙 ships an update every 3 months, NubDeck every 2 months. The most recent releases landed on October 16, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | MZD数字钥匙 | NubDeck |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 36 MB | 521 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [USTL Internet of Things Co., Ltd.](https://appshunter.io/developer/1494250730) | [Shanghai InGeek Cyber Security Co., Ltd.](https://appshunter.io/developer/1464408787) |

## What reviewers say

### MZD数字钥匙

[App page](https://appshunter.io/ios/app/mzd/id1669684270)

**Features:** macOS Compatibility

**In-app purchases:** none


### NubDeck

[App page](https://appshunter.io/ios/app/nubdeck/id6764029030)

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

**In-app purchases:** none


## Frequently asked questions

### Is MZD数字钥匙 free?

MZD数字钥匙 is free to download, with no in-app purchases.

### Is NubDeck free?

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

### Do MZD数字钥匙 or NubDeck have ads?

Neither MZD数字钥匙 nor NubDeck shows ads.

### Which is updated more often, MZD数字钥匙 or NubDeck?

MZD数字钥匙 ships an update every 3 months, and NubDeck every 2 months. Most recently, MZD数字钥匙 was updated on October 16, 2026 and NubDeck on October 4, 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.*