# CryptoDuck vs Greenbox Safe

The clearest difference is update cadence: Greenbox Safe at every 3 weeks against CryptoDuck's every 3 months. On price, ads, in-app purchases 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 and Greenbox Safe sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

CryptoDuck ships an update every 3 months, Greenbox Safe every 3 weeks. Both last shipped on October 28, 2026.

## The numbers

| Metric | CryptoDuck | Greenbox Safe |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 11 MB | 45 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Baitemi Technology Co., Ltd](https://appshunter.io/developer/1789135443) | [Discus IT](https://appshunter.io/developer/543285708) |

## What reviewers say

### 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 |


### Greenbox Safe

[App page](https://appshunter.io/ios/app/greenbox-safe/id6755424031)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Greenbox Premium (Monthly) | $4.99 | per month |
| Greenbox Premium (Yearly) | $49.99 | per year |
| Greenbox Lifetime | $199.99 | one-time |


## Frequently asked questions

### Is CryptoDuck free?

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

### Is Greenbox Safe free?

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

### Do CryptoDuck or Greenbox Safe have ads?

Neither CryptoDuck nor Greenbox Safe shows ads.

### Which is updated more often, CryptoDuck or Greenbox Safe?

CryptoDuck ships an update every 3 months, and Greenbox Safe every 3 weeks. Most recently, CryptoDuck was updated on October 28, 2026 and Greenbox Safe on October 28, 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.*