Clean That Sheet™ vs ContactZapp

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

Clean That Sheet™ compared with ContactZapp
Detail	Clean That Sheet™	ContactZapp
What it does	Get messy Excel and CSV files ready to send, submit, import, report, or hand off	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	Not given	Not given
Pricing model	Not given	Freemium
Pricing	One file cleanup: $4.99. Big File Cleanup: $9.99 per file. Clean That Sheet™ Guard™ Pro: $9.99 per month (unlimited checks and cleanups).	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	Standardize date and number formats Trim extra spaces and fix casing Clean column headers and names Flag invalid emails and errors Free preview before payment Support for Excel and CSV files Change report included Process screenshots and PDFs Preserve original file structure and headers	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	Free preview shows exactly what will change before you pay No signup required, original file never overwritten Works with screenshots and PDFs, not just spreadsheet files 7-day refund guarantee if the result is not what you expected	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)	2 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	21	0
Citation Flow (Majestic)	18	11
Referring domains (Majestic)	25	1

4 details filled in for both companies.

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