# ZDL vs BlueSpy

The clearest difference is in-app purchases: ZDL at none against BlueSpy's 7. ZDL also leads on update cadence (every 4 months vs every 17 months) and iOS requirement (14.0 vs 18.0). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. BlueSpy sells 7 in-app purchases, starting at $0.99 per month. ZDL asks for nothing beyond the download.

ZDL ships an update every 4 months, BlueSpy every 17 months. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | ZDL | BlueSpy |
| --- | --- | --- |
| 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 | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 17 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 23 MB | 849 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Blackwired Pte Ltd.](https://appshunter.io/developer/1642378647) | [Giuseppe Mazzilli](https://appshunter.io/developer/1593372985) |

## 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


### BlueSpy

[App page](https://appshunter.io/ios/app/bluespy/id6451215731)

This tool allows you to inspect, read, and write data with Bluetooth Low Energy devices. Explore device capabilities, analyze behavior, and understand security levels through real-time scanning and interactive features.

**Highlights:** Scan nearby BLE devices in real-time, Sort and filter peripherals, Identify device types and models, Read and write peripheral data, Explore communication logs, Configure custom settings

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bronze Membership | $0.99 | per month |
| Gold Membership | $3.99 | per month |
| Platinum Membership | $4.99 | per month |
| Characteristic Write Feature | $0.99 | one-time |
| 1-Year Subscription | $3.99 | one-time |
| 2-Year Subscription | $6.99 | one-time |
| 3-Year Subscription | $8.99 | one-time |


## Frequently asked questions

### Is ZDL free?

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

### Is BlueSpy free?

BlueSpy is free to download, with in-app purchases available.

### Do ZDL or BlueSpy have ads?

Neither ZDL nor BlueSpy shows ads.

### Which is updated more often, ZDL or BlueSpy?

ZDL ships an update every 4 months, and BlueSpy every 17 months. Most recently, ZDL was updated on October 14, 2026 and BlueSpy 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.*