ContactZapp vs Many Displays

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 Many Displays
Detail	ContactZapp	Many Displays
What it does	Sync your contacts between Google, Microsoft, Apple and CardDAV. Find and merge duplicates easily.	Mac windows back in place after sleep or unlock, automatically and instantly
Stage	Not given	Established
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Not given
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.	$19 USD one-time payment for one person on up to 3 Macs. Includes one year of updates; last version of that year works forever. Free 14-day trial.
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	Automatic window restoration after wake, unlock, login or monitor reconnection Distinguishes identical monitors by system UUID and physical port Fast restore without app communication, around 20ms for hundreds of windows Restores display arrangement including resolution, refresh rate, rotation and HDR Restores windows across all virtual desktops (Spaces) Visual feedback with soft blur and countdown during restore No setup required, learns layout automatically while you work Private by design with no network access or analytics Goes idle with no external displays connected Distinguishes layouts per display combination
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	Works reliably with identical monitors that macOS cannot distinguish by standard means Fast and never hangs because it reads the window server directly instead of querying each application Open source code published under Functional Source License with MIT conversion after two years
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	1 +1 (up) since last check
Trust Flow (Majestic)	0	13
Citation Flow (Majestic)	11	23
Referring domains (Majestic)	1	13

4 details filled in for both companies.

More alternatives to ContactZapp More alternatives to Many Displays