ContactZapp vs Justduedate7

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

ContactZapp compared with Justduedate7
Detail	ContactZapp	Justduedate7
What it does	Sync your contacts between Google, Microsoft, Apple and CardDAV. Find and merge duplicates easily.	One AI-prioritized list from your email, calendar and tasks
Stage	Not given	MVP
Founded	Not given	Not given
Based in	Not given	IL
Pricing model	Freemium	Free trial
Pricing	Free plan: 2 synced accounts, 100 contacts, no time limit. Easy plan: $4.00/month (billed $47.94/year, was $95.88). Unlimited plan: $8.00/month (billed $95.94/year, was $191.88). 50% off Easy and Unlimited with code HALLOWEEN.	Free Trial: 7 days free with email, calendar integration and AI prioritization. Basic: $15 per user per month with email, calendar, 1 additional work system, up to 50 items, 3 syncs per day. Pro: $35 per user per month with email, calendar, up to 3 additional work systems, up to 100 items, 6 syncs p
Key features	Two-way sync across Google, Microsoft, Apple and CardDAV Merge duplicates in one go, or review them one by one Full change history with undo capability Backups and vCard export Sync frequency control (hourly, daily, or manual) Set accounts to read-only mode Preserve all phone numbers and email addresses Up to 5 encrypted account backups 12-month undo history Restore deleted contacts for 12 months	Connect Gmail, Google Calendar, ClickUp, Monday.com, Slack and Outlook (coming soon) via OAuth AI-powered priority scoring on 1–100 scale Read-only access to connected accounts where possible AI action suggestions (15 per day on Basic, 40 on Pro) Disconnect any source instantly from settings Privacy-first approach with no email body storage Data never sold, used for ads, or AI training
What makes it different	Syncs across all major platforms in both directions automatically Encrypted contacts with privacy key per account Undo any change for up to 12 months No time limit on free plan Automatic duplicate detection and optional auto-merge	AI-native design from start, not added as feature later No manual tagging or setup overhead to connect tools
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	0	2
Citation Flow (Majestic)	11	12
Referring domains (Majestic)	1	1

5 details filled in for both companies.

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