CheckNumber.AI vs Ha Tang

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

CheckNumber.AI compared with Ha Tang
Detail	CheckNumber.AI	Ha Tang
What it does	Bulk phone number and email verification across 50+ platforms via API or no-code CSV upload	Sell, support and get paid in one place, with AI doing the repetitive part
Stage	Not given	Established
Founded	Not given	2015
Based in	Not given	VN
Pricing model	Paid	Not given
Pricing	Not given	Not given
Key features	Real-time verification against 50+ platforms No-code CSV/TXT upload interface REST API for automation and integration Support for 200+ countries Platform-specific detectors for messaging, social, crypto and carriers Activity detection (days active, last seen, profile data) Free single number checker tool Pay-as-you-go with no monthly fees	Unified inbox for Zalo, Facebook, Instagram, TikTok, WhatsApp, Telegram, X, LINE and website chat AI assistant that answers from custom knowledge and drafts orders Resend-compatible email API for custom domains VietQR bank transfer payments with automatic order matching Automated e-invoice (hóa đơn điện tử) generation MCP server for AI coding agents Webhook support for integrations
What makes it different	Supports 50+ platforms with a single API integration No platform login or QR code required for verification Both no-code and developer-ready options Real-time checks against live platform servers No data storage or marketing use of contact lists	Built by engineers who use it in production across 25 countries Designed specifically for Vietnamese business needs including VietQR and e-invoices
Community votes	0	0
DR (Domain Rating by Ahrefs)	37 no change since last check	3 no change since last check
Trust Flow (Majestic)	6	0
Citation Flow (Majestic)	44	15
Referring domains (Majestic)	42	3

3 details filled in for both companies.

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