# DOM Update vs OTA upgrade

The clearest difference is iOS requirement: OTA upgrade at 12.1 against DOM Update's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DOM Update ships an update every 3 months, OTA upgrade every 2 months. The most recent releases landed on September 15, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | DOM Update | OTA upgrade |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 53 MB | 39 MB |
| Requires iOS | 15.0 | **12.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [DOM Sicherheitstechnik GmbH & Co. KG](https://appshunter.io/developer/1557896636) | [HUIZHOU REDBOX ELECTRONICS CO,.LTD](https://appshunter.io/developer/1693036399) |

## What reviewers say

### DOM Update

[App page](https://appshunter.io/ios/app/dom-update/id1668985801)

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

**In-app purchases:** none


### OTA upgrade

[App page](https://appshunter.io/ios/app/ota-upgrade/id6450377634)

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

**In-app purchases:** none


## Frequently asked questions

### Is DOM Update free?

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

### Is OTA upgrade free?

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

### Do DOM Update or OTA upgrade have ads?

Neither DOM Update nor OTA upgrade shows ads.

### Which is updated more often, DOM Update or OTA upgrade?

DOM Update ships an update every 3 months, and OTA upgrade every 2 months. Most recently, DOM Update was updated on September 15, 2026 and OTA upgrade on September 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.*