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Zavu vs ZelNum

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

Zavu compared with ZelNum
DetailZavu logo ZavuZelNum logo ZelNum
What it doesOne API for all your messages. Phone number, carrier, and messaging app verification platform for contact list cleaning and fraud review
StageStartup Not given
Founded2025 Not given
Based inUS EE
Pricing modelFreemium Paid
PricingFree plan: $0/mo with 2,000 messages per month on WhatsApp, Telegram, Instagram and Messenger, $2 of SMS/voice/email credit, and AI agents. Pro: $20/mo with $20 monthly usage credit, unlimited channels, phone numbers from $0.63/mo, transactional email $0.40/1,000, marketing email $0.80/1,000, SMS fr Pay-as-you-go prepaid credits. WhatsApp: $0.5 per 10,000 lookups (bulk) or $0.008 per lookup (realtime). Telegram: $1.5 per 10,000 lookups (bulk) or $0.012 per lookup (realtime). HLR Lookup: $4 per 10,000 lookups. Carrier Lookup: $4 per 10,000 lookups. No subscription, minimum order 500–2,000 depend
Key features
  • AI agents across channels
  • Voice agents with phone answering
  • Transactional and marketing email
  • OTP and verification codes
  • Phone number provisioning in 200+ countries
  • WhatsApp Business templates and media
  • Broadcast campaigns and scheduling
  • Shared inbox and contact management
  • Serverless functions on events
  • Agent memory and knowledge base
  • Bulk CSV/TXT file upload and processing
  • VoIP and disposable number detection
  • Real-time single lookups and batch API jobs
What makes it different
  • Single API for 8+ messaging channels instead of multiple vendor integrations
  • Up to 92% lower costs than alternatives like Twilio and Resend
  • AI agents that set up infrastructure automatically
  • Five-minute onboarding from signup to first message
  • No platform markup on Meta WhatsApp pricing
  • 45 verification tools in one workflow covering phone, carrier, messaging apps, and social platforms
  • Global coverage across international phone datasets and carrier networks
  • Pay-as-you-go credits with no subscription, minimum commitment, or recurring fees
  • Scalable from free single lookups to bulk API workflows and high-volume batch jobs
Community votes00
DR (Domain Rating by Ahrefs)26 +4 (up) since last check18 +1 (up) since last check
Trust Flow (Majestic)815
Citation Flow (Majestic)2929
Referring domains (Majestic)9519

6 details filled in for both companies.

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