ZDL vs Contacts Duplicates Cleaner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Contacts Duplicates Cleaner
Effortlessly organize your address book by finding and removing duplicate contacts. This app scans your device locally, groups matches by email, phone, or name, and allows you to selectively delete extras with a single tap. Your data remains private and on-device.
- Local duplicate scanning
- Accurate contact grouping
- Selective deletion
- On-device processing
- Undo-proof workflow
- Works with multiple accounts
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Tidy your address book in seconds. Duplicate Contacts Cleaner Pro scans locally for exact duplicates by email, phone, and name, groups matches, and much more, ... and lets you keep one and delete the extras with a tap. Nothing leaves your device. Accurate grouping. Safe by design: You choose what to keep. Clear “Keep” badges and checkboxes prevent mistakes. Asks for your confirmation first before any step taken. Instant results: Optimized for large iCloud and Exchange address books. Private: Processing is fully on-device. No accounts. No tracking. Undo-proof workflow: Deletes use Contacts APIs so changes sync through iCloud and can be restored from iCloud/Time Machine backups if needed. Grant Contacts access. Choose rules. Review grouped matches. Tap Delete Selected to remove extras. Rescan any time. One-tap Rescan. Large, readable cards. Dark-mode tuned UI. Works on light mode too. Works with iCloud, On My iPhone, Google, and Exchange accounts supported by iOS Contacts. No subscriptions. No Ads. One-time purchase.
Screenshots
Verdict
The clearest difference is review sentiment: ZDL at 100% against Contacts Duplicates Cleaner's 0%. ZDL also leads on price (Free vs $0.99) and iOS requirement (14.0 vs 16). On 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
ZDL is free to download; Contacts Duplicates Cleaner costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | ZDL | Contacts Duplicates Cleaner |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Every 4 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 — better | 16 |
| Further details — not scored | ||
| Size | 23 MB | 3 MB |
| Age rating | 4+ | +4 |
| Developer | Blackwired Pte Ltd. | EyeOS Store Inc. |
Customer experience
ZDL
Contacts Duplicates Cleaner
In-app purchases
ZDL
No in-app purchases
Contacts Duplicates Cleaner
No in-app purchases









