Whiiteroom vs ContactZapp

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

Whiiteroom compared with ContactZapp
Detail	Whiiteroom	ContactZapp
What it does	Distraction-free productivity workspace with whitelist and blacklist modes for Windows and Android	Sync your contacts between Google, Microsoft, Apple and CardDAV. Find and merge duplicates easily.
Stage	Not given	Not given
Founded	Not given	Not given
Based in	IN	Not given
Pricing model	Freemium	Freemium
Pricing	Not given	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.
Key features	OS-level enforcement with restart persistence Distraction-free YouTube browser with filtering Session and scheduled break timers Auto-start scheduler for recurring focus sessions Private distraction tracking and focus analytics Workspace profiles to save and reuse settings Pre-session account sign-in for seamless authentication	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
What makes it different	Only focus app offering both whitelist and blacklist modes in one product OS-level enforcement prevents easy bypasses unlike browser extensions 100% private with locally stored data, no browsing history collection Crash-resilient session enforcement survives restarts	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
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)	3 +2 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	0	0
Citation Flow (Majestic)	14	11
Referring domains (Majestic)	2	1

4 details filled in for both companies.

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