ContactZapp vs Crest

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 Crest
Detail	ContactZapp	Crest
What it does	Sync your contacts between Google, Microsoft, Apple and CardDAV. Find and merge duplicates easily.	Answer Claude Code approvals from your MacBook's notch
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Paid
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.	Crest Pro: $14.99 once (use on 2 Macs, updates through Crest 7). Crest Cloud + Drop add-on: 50 GB for $4.99/month or $39.99/year; 200 GB for $7.99/month or $79.99/year. 7-day free trial of everything with no card required.
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	Display Claude Code permission prompts on the MacBook notch Answer with Allow or Deny with a single tap View full command details before approving Answer Claude's multiple-choice questions from the notch Support for Codex CLI Support for GitHub Copilot CLI Visible on any display, even over fullscreen apps Works with Claude Code's native hook system
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	Shows prompts on the notch, visible over any fullscreen app or external display One-time purchase with no subscription required Uses native hooks instead of patching or injecting No API key or extra signup required
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	8 no change since last check
Trust Flow (Majestic)	0	9
Citation Flow (Majestic)	11	31
Referring domains (Majestic)	1	107

5 details filled in for both companies.

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