# IZI vs BioMetrix

The clearest difference is in-app purchases: BioMetrix at none against IZI's 6. BioMetrix also leads on update cadence (daily vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. IZI sells 6 one-off in-app purchases. BioMetrix asks for nothing beyond the download.

IZI ships an update every 4 months, BioMetrix daily. The most recent releases landed on October 15, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | IZI | BioMetrix |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Daily** |
| Size | 89 MB | 65 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IZI PRO TEAM, MChJ](https://appshunter.io/developer/1625591102) | [Javokhirbek Akbarov](https://appshunter.io/developer/6779137728) |

## What reviewers say

### IZI

[App page](https://appshunter.io/ios/app/izi-testlar/id6760897856)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tests Pack ($5) | $5.00 | one-time |
| Tests Pack ($10) | $10.00 | one-time |
| Tests Pack ($15) | $15.00 | one-time |
| Tests Pack ($20) | $20.00 | one-time |
| Tests Pack ($25) | $25.00 | one-time |
| Tests Pack ($30) | $30.00 | one-time |


### BioMetrix

[App page](https://appshunter.io/ios/app/biometrix/id6779137726)

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

**In-app purchases:** none


## Frequently asked questions

### Is IZI free?

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

### Is BioMetrix free?

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

### Do IZI or BioMetrix have ads?

Neither IZI nor BioMetrix shows ads.

### Which is updated more often, IZI or BioMetrix?

IZI ships an update every 4 months, and BioMetrix daily. Most recently, IZI was updated on October 15, 2026 and BioMetrix on October 20, 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.*