# BiosystemLock vs Prime Plus

The clearest difference is update cadence: Prime Plus at monthly against BiosystemLock's every 14 months. BiosystemLock's advantage is iOS requirement (13.0 vs 15.6). 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.

BiosystemLock ships an update every 14 months, Prime Plus monthly. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | BiosystemLock | Prime Plus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Monthly** |
| Size | 381 MB | 41 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Goh Siang Aik](https://appshunter.io/developer/1444710737) | [Best Petrol](https://appshunter.io/developer/1482265857) |

## What reviewers say

### BiosystemLock

[App page](https://appshunter.io/ios/app/biosystemlock/id1444710738)

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

**In-app purchases:** none


### Prime Plus

[App page](https://appshunter.io/ios/app/prime-plus/id6754953278)

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

**In-app purchases:** none


## Frequently asked questions

### Is BiosystemLock free?

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

### Is Prime Plus free?

Prime Plus is free to download, with no in-app purchases.

### Do BiosystemLock or Prime Plus have ads?

Neither BiosystemLock nor Prime Plus shows ads.

### Which is updated more often, BiosystemLock or Prime Plus?

BiosystemLock ships an update every 14 months, and Prime Plus monthly. Most recently, BiosystemLock was updated on October 3, 2026 and Prime Plus on October 7, 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.*