# Krypton vs DOM Update

The clearest difference is price: DOM Update at Free against Krypton's $2.99. DOM Update also leads on update cadence (every 3 months vs every 10 months). Krypton's advantage is device support (4 vs 2). On ads, in-app purchases and iOS requirement there is nothing between them.

DOM Update is free to download; Krypton costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Krypton ships an update every 10 months, DOM Update every 3 months. The most recent releases landed on September 22, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Krypton | DOM Update |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/krypton/id1529946598/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 months** |
| Monetization | Paid | — |
| Size | 110 MB | 53 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Steve Lidie](https://appshunter.io/developer/1869780159) | [DOM Sicherheitstechnik GmbH & Co. KG](https://appshunter.io/developer/1557896636) |

## What reviewers say

### Krypton

[App page](https://appshunter.io/ios/app/krypton/id1529946598)

Securely encrypt and protect your personal documents and folders with strong encryption. This app acts like a digital vault, keeping your sensitive files safe from unauthorized access on your devices and cloud storage.

**Highlights:** Strong encryption for documents and folders, Acts as a secure digital vault, Supports various file types (pictures, movies, PDFs, etc.), Cloud synchronization with iCloud Drive and Dropbox, Available on iOS and macOS

**Features:** Vision Pro support

**In-app purchases:** none


### DOM Update

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Krypton free?

Krypton costs $2.99, with no in-app purchases.

### Is DOM Update free?

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

### Do Krypton or DOM Update have ads?

Neither Krypton nor DOM Update shows ads.

### Which is updated more often, Krypton or DOM Update?

Krypton ships an update every 10 months, and DOM Update every 3 months. Most recently, Krypton was updated on September 22, 2026 and DOM Update on September 15, 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.*