# DESlock+ Mobile vs Excalibur v4

The clearest difference is update cadence: Excalibur v4 at every 3 weeks against DESlock+ Mobile's every 7 months. DESlock+ Mobile's advantage is iOS requirement (5.1.1 vs 15.6). 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.

DESlock+ Mobile ships an update every 7 months, Excalibur v4 every 3 weeks. The most recent releases landed on June 9, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | DESlock+ Mobile | Excalibur v4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/deslock-plus-mobile/id880602467/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 12 MB | 28 MB |
| Requires iOS | **5.1.1** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ESET RESEARCH UK LIMITED](https://appshunter.io/developer/880602470) | [Excalibur s.r.o.](https://appshunter.io/developer/1371963997) |

## What reviewers say

### DESlock+ Mobile

[App page](https://appshunter.io/ios/app/deslock-plus-mobile/id880602467)

Securely encrypt and decrypt emails, attachments, text, and files on your iOS device. It offers password protection and is compatible with desktop versions. Enterprise users can leverage remote management and encryption keys via a DESlock+ Enterprise Server.

**Highlights:** Encrypt and decrypt emails, Encrypt and decrypt attachments, Encrypt and decrypt text, Encrypt and decrypt files, Password protection, Compatibility with desktop editions, Enterprise server integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Excalibur v4

[App page](https://appshunter.io/ios/app/excalibur-v4/id6630382972)

**In-app purchases:** none


## Frequently asked questions

### Is DESlock+ Mobile free?

DESlock+ Mobile is free to download, with no in-app purchases.

### Is Excalibur v4 free?

Excalibur v4 is free to download, with no in-app purchases.

### Do DESlock+ Mobile or Excalibur v4 have ads?

Neither DESlock+ Mobile nor Excalibur v4 shows ads.

### Which is updated more often, DESlock+ Mobile or Excalibur v4?

DESlock+ Mobile ships an update every 7 months, and Excalibur v4 every 3 weeks. Most recently, DESlock+ Mobile was updated on June 9, 2026 and Excalibur v4 on September 16, 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.*