# Onbox Levelezés vs KvantMail

The clearest difference is update cadence: Onbox Levelezés at every 2 days against KvantMail's every 26 months. Onbox Levelezés also leads on iOS requirement (11.0 vs 15.0). 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.

Onbox Levelezés ships an update every 2 days, KvantMail every 26 months. The most recent releases landed on October 12, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Onbox Levelezés | KvantMail |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 26 months |
| Size | 7 MB | 30 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mediaworks Hungary Zrt.](https://appshunter.io/developer/1703990492) | [Arenim Infosec Kft.](https://appshunter.io/developer/1595599782) |

## What reviewers say

### Onbox Levelezés

[App page](https://appshunter.io/ios/app/onbox-levelezes/id1473011265)

**Features:** Vision Pro support

**In-app purchases:** none


### KvantMail

[App page](https://appshunter.io/ios/app/kvantmail/id1595599780)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Onbox Levelezés free?

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

### Is KvantMail free?

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

### Do Onbox Levelezés or KvantMail have ads?

Neither Onbox Levelezés nor KvantMail shows ads.

### Which is updated more often, Onbox Levelezés or KvantMail?

Onbox Levelezés ships an update every 2 days, and KvantMail every 26 months. Most recently, Onbox Levelezés was updated on October 12, 2026 and KvantMail on October 11, 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.*