# ZDL vs Guardian Call

The clearest difference is iOS requirement: ZDL at 14.0 against Guardian Call's 17.0. 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.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | ZDL | Guardian Call |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/zdl/id1415744847/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | Free | — |
| Size | 23 MB | 6 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Blackwired Pte Ltd.](https://appshunter.io/developer/1642378647) | [DSIRF GmbH](https://appshunter.io/developer/1494925585) |

## What reviewers say

### ZDL

[App page](https://appshunter.io/ios/app/zdl/id1415744847)

This platform offers real-time cyber-attack prevention by providing a unique view of adversary preparations. It aims to proactively safeguard enterprises from cyber threats before they occur.

**Highlights:** Proactive cyber-attack prevention, Real-time adversary monitoring, Global cyber observatory, Enterprise-level cyber-warfare capability, Performance updates and bug fixes

**Features:** macOS Compatibility

**In-app purchases:** none


### Guardian Call

[App page](https://appshunter.io/ios/app/guardian-call/id6449091355)

**In-app purchases:** none


## Frequently asked questions

### Is ZDL free?

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

### Is Guardian Call free?

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

### Do ZDL or Guardian Call have ads?

Neither ZDL nor Guardian Call shows ads.

### Which is updated more often, ZDL or Guardian Call?

ZDL ships an update every 4 months, and Guardian Call every 4 months. Most recently, ZDL was updated on October 29, 2026 and Guardian Call on October 27, 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.*