# O3Z vs SuntIO

The clearest difference is update cadence: SuntIO at fortnightly against O3Z's every 4 months. O3Z's advantage is iOS requirement (13.0 vs 15.5). 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.

O3Z ships an update every 4 months, SuntIO fortnightly. The most recent releases landed on October 17, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | O3Z | SuntIO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/suntio/id6754592882/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 4 MB | 91 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [STEM s.r.l.](https://appshunter.io/developer/1577070000) | [SUNTIO IDENTITY SRL](https://appshunter.io/developer/1849109224) |

## What reviewers say

### O3Z

[App page](https://appshunter.io/ios/app/o3z-tech-connect/id1609095280)

**In-app purchases:** none


### SuntIO

[App page](https://appshunter.io/ios/app/suntio/id6754592882)

Securely verify your identity once and use it to log into partner services without passwords. You control what data is shared and with whom, ensuring advanced privacy and traceability. Supports signing documents and declarations using NFC and electronic identity cards.

**Highlights:** One-time identity verification (KYC), Passwordless authentication, Consent-based data sharing, Document signing via NFC, Signed address declarations, Built on open standards

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is O3Z free?

O3Z is free to download, with no in-app purchases.

### Is SuntIO free?

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

### Do O3Z or SuntIO have ads?

Neither O3Z nor SuntIO shows ads.

### Which is updated more often, O3Z or SuntIO?

O3Z ships an update every 4 months, and SuntIO fortnightly. Most recently, O3Z was updated on October 17, 2026 and SuntIO on October 22, 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.*