# 维热纳尔密码 vs CryptoDuck

The clearest difference is in-app purchases: 维热纳尔密码 at none against CryptoDuck's 6. 维热纳尔密码 also leads on update cadence (every 5 days vs every 3 months) and iOS requirement (10.2 vs 16.0). CryptoDuck's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. CryptoDuck sells 6 in-app purchases, starting at $0.99 per month. 维热纳尔密码 asks for nothing beyond the download.

维热纳尔密码 ships an update every 5 days, CryptoDuck every 3 months. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 维热纳尔密码 | CryptoDuck |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 3 months |
| Size | 47 MB | 11 MB |
| Requires iOS | **10.2** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [月英 王](https://appshunter.io/developer/1597922310) | [Beijing Baitemi Technology Co., Ltd](https://appshunter.io/developer/1789135443) |

## What reviewers say

### 维热纳尔密码

[App page](https://appshunter.io/ios/app/id1599862875)

**Features:** macOS Compatibility

**In-app purchases:** none


### CryptoDuck

[App page](https://appshunter.io/ios/app/cryptoduck-secret-chat/id6740244562)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $0.99 | per month |
| Pro Yearly | $7.99 | per year |
| Couple Pack | $0.99 | one-time |
| Emoji Pack | $0.99 | one-time |
| Festival Pack | $0.99 | one-time |
| Pro Lifetime | $14.99 | one-time |


## Frequently asked questions

### Is 维热纳尔密码 free?

维热纳尔密码 is free to download, with no in-app purchases.

### Is CryptoDuck free?

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

### Do 维热纳尔密码 or CryptoDuck have ads?

维热纳尔密码 shows ads; CryptoDuck does not.

### Which is updated more often, 维热纳尔密码 or CryptoDuck?

维热纳尔密码 ships an update every 5 days, and CryptoDuck every 3 months. Most recently, 维热纳尔密码 was updated on October 5, 2026 and CryptoDuck on October 15, 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.*