Luna PBX vs ZDL
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Luna PBX
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* You must have an existing Numbergroup Luna PBX account in order to use this app. Use your mobile phone to make and receive calls on your Numbergroup Luna PBX service. Luna PBX is a cloud based Universal Communications platform that provides all the communication tools a modern business needs. The Luna PBX client allows users to log in to their Luna PBX extension easily and securely without requiring any username or password. Once connected your users can: . Make and receive calls in the same way their handset works using HD quality voice. . Put callers on hold and transfer them to colleagues, groups or conferences. . Have calls recorded automatically to meet regulatory requirements. . Have outgoing calls appear from their extension's phone number. The Luna PBX client utilises push technology so can run in the background without affecting battery performance. Wi-Fi or 3G connectivity is required to make and receive calls.
ZDL
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.
- Proactive cyber-attack prevention
- Real-time adversary monitoring
- Global cyber observatory
- Enterprise-level cyber-warfare capability
- Performance updates and bug fixes
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Blackwired defines a new approach to Threat Intelligence. The flagship Zero Day Live platform is designed to proactively prevent cyber-attacks before they happen. It is the first and only platform delivering cyber-warfare capability accessible to enterprise. The largest cyber observatory in the world with a unique lens on adversaries and their preparations to attack. Zero Day Live’s real time, measurable cyber-attack prevention takes your enterprise out of the victim pool. The team at Blackwired continues to make performance updates, bug fixes and feature rich options to enhance the user experience. Happy hunting.
Screenshots
Verdict
The clearest difference is update cadence: ZDL at every 4 months against Luna PBX's every 17 months. ZDL also leads on iOS requirement (14.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Luna PBX ships an update every 17 months, ZDL every 4 months. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.
| Parameter | Luna PBX | ZDL |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 17 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 97 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Numbergroup Network Limited | Blackwired Pte Ltd. |
In-app purchases
Luna PBX
No in-app purchases
ZDL
No in-app purchases









