# Strongbox Zero vs 6 Years

The clearest difference is price: 6 Years at Free against Strongbox Zero's $99.99. Strongbox Zero's advantage is in-app purchases (none vs 2) and update cadence (every 2 weeks vs every 2 months). On ads there is nothing between them.

6 Years is free to download; Strongbox Zero costs $99.99 up front. 6 Years sells 2 in-app purchases, starting at $2.99 per month. Strongbox Zero asks for nothing beyond the download.

Strongbox Zero ships an update every 2 weeks, 6 Years every 2 months. Both last shipped on October 15, 2026.

## The numbers

| Metric | Strongbox Zero | 6 Years |
| --- | --- | --- |
| Price | $99.99 | **Free** |
| Rating | **[4.3 (21 ratings)](https://appshunter.io/ios/app/strongbox-zero/id1581589638/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Paid | — |
| Size | 96 MB | 47 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod, Mac, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Phoebe Code Limited](https://appshunter.io/developer/897283734) | [Masomeno Tech B.V.](https://appshunter.io/developer/1845075241) |

## What reviewers say

### Strongbox Zero

[App page](https://appshunter.io/ios/app/strongbox-zero/id1581589638)

This app securely stores and protects your passwords with a master password. It supports open-source formats and offers advanced security features like biometric unlock and hardware token protection. It's designed for users who prefer a local-only password management solution.

**Highlights:** Local-only password storage, Biometric and PIN unlock, YubiKey hardware token protection, Military-grade cryptography, Password auditing for weak passwords, Secure document attachment viewer, Import/Export via Files app and Email

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


### 6 Years

[App page](https://appshunter.io/ios/app/6-years/id6753799214)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6 Years | $2.99 | per month |
| 6 Years | $9.99 | per year |


## Frequently asked questions

### Is Strongbox Zero free?

Strongbox Zero costs $99.99, with no in-app purchases.

### Is 6 Years free?

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

### Do Strongbox Zero or 6 Years have ads?

Neither Strongbox Zero nor 6 Years shows ads.

### Which is updated more often, Strongbox Zero or 6 Years?

Strongbox Zero ships an update every 2 weeks, and 6 Years every 2 months. Most recently, Strongbox Zero was updated on October 15, 2026 and 6 Years 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.*