# Alpha Lenz vs ₿21

The clearest difference is device support: Alpha Lenz at 3 against ₿21's 1. Alpha Lenz also leads on iOS requirement (15.1 vs 17.0). 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.

Alpha Lenz ships an update fortnightly, ₿21 every 8 days. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Alpha Lenz | ₿21 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 8 days** |
| Size | 54 MB | 11 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [트레져러](https://appshunter.io/developer/1610330306) | [Paxa Media](https://appshunter.io/developer/6775532265) |

## What reviewers say

### Alpha Lenz

[App page](https://appshunter.io/ios/app/alpha-lenz/id6760338543)

**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 Alpha Lenz free?

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

### Is ₿21 free?

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

### Do Alpha Lenz or ₿21 have ads?

Neither Alpha Lenz nor ₿21 shows ads.

### Which is updated more often, Alpha Lenz or ₿21?

Alpha Lenz ships an update fortnightly, and ₿21 every 8 days. Most recently, Alpha Lenz was updated on October 28, 2026 and ₿21 on October 29, 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.*