ViceVersa EML to PST Converter vs Port Zero

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

ViceVersa EML to PST Converter compared with Port Zero
Detail	ViceVersa EML to PST Converter	Port Zero
What it does	Convert EML files to Outlook PST format and PST back to EML without Outlook installed	Stable domains for local development ports, eliminating conflicts with free open-source tunnels and paid cloud options
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Paid	Freemium
Pricing	Free trial: 25 items per folder. Personal: $39 for one machine with one year of updates. Professional: $99 for 5 machines with lifetime updates. Technician: $299 for unlimited machines with lifetime updates. All licenses include 30-day money-back policy.	Free and Open Source: $0 (unlimited local tunnels, open source); Professional: $49/mo or $490/yr (unlimited cloud tunnels, visitor auth, feedback comments); Team: $149/mo or $1,490/yr (everything in Professional plus unlimited members, teams, shared subdomains, approvals, organization billing); Ente
Key features	Preserve folder structure and hierarchy in output PST Include email attachments in converted PST files Preview emails before conversion and selectively exclude messages Convert without Outlook installed on Windows Support multiple email formats including EML, EMLX, HTML and RTF Save conversion log after each batch operation	Stable local domains (.portzero.local) for processes and containers Cloud tunnels (.tunnel.portzero.cloud) with HTTPS for LAN and internet access Support for multiple programming languages Git worktree support with per-branch URLs AI agent integration with MCP server Visitor authentication and access control Feedback comments on live tunnels Team access policies and approvals Audit log (Enterprise plan) Organization billing with no per-seat charges
What makes it different	Bidirectional conversion: same license covers both EML to PST and PST to EML transformations No Outlook installation required to perform conversions 30-day money-back guarantee on all license purchases	Eliminates port conflicts by assigning stable virtual domains instead of port numbers Free and open source for local use; no additional cost for cloud features on paid plans Flat pricing with no meters, overages, or per-seat charges Agent-ready with native MCP server integration for AI coding agents Works across multiple OS and languages with zero port bookkeeping 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)	6 −1 (down) since last check	1 no change since last check
Trust Flow (Majestic)	11	4
Citation Flow (Majestic)	18	26
Referring domains (Majestic)	2275	135

5 details filled in for both companies.

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