# BB84 Wallet vs ₿21

The clearest difference is update cadence: BB84 Wallet at every 3 days against ₿21's every 8 days. 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.

BB84 Wallet ships an update every 3 days, ₿21 every 8 days. Both last shipped on November 13, 2026.

## The numbers

| Metric | BB84 Wallet | ₿21 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 8 days |
| Size | 44 MB | 11 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [HADAMARD CORPORATION](https://appshunter.io/developer/6776849486) | [Paxa Media](https://appshunter.io/developer/6775532265) |

## What reviewers say

### BB84 Wallet

[App page](https://appshunter.io/ios/app/bb84-wallet/id6776849483)

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

**In-app purchases:** none


### ₿21

[App page](https://appshunter.io/ios/app/21-bitcoin-wallet/id6804453821)

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

**In-app purchases:** none


## Frequently asked questions

### Is BB84 Wallet free?

BB84 Wallet is free to download, with no in-app purchases.

### Is ₿21 free?

₿21 is free to download, with no in-app purchases.

### Do BB84 Wallet or ₿21 have ads?

Neither BB84 Wallet nor ₿21 shows ads.

### Which is updated more often, BB84 Wallet or ₿21?

BB84 Wallet ships an update every 3 days, and ₿21 every 8 days. Most recently, BB84 Wallet was updated on November 13, 2026 and ₿21 on November 13, 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.*