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Tempo Checker vs Announcer

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

Tempo Checker compared with Announcer
DetailTempo Checker logo Tempo CheckerAnnouncer logo Announcer
What it doesDetect disposable emails before they wreck your signups Transactional email API for developers, run from Sweden
StageNot given Not given
FoundedNot given Not given
Based inNot given SE
Pricing modelFree trial Freemium
PricingStarter $9.99/mo (750 calls/mo), Growth $14.99/mo (2,000 calls/mo), Scale $24.99/mo (6,000 calls/mo). Free 7-day trial available. Free: €0/month with 100 messages a day and 2 domains. Pro: €19/month for 10,000 messages a month and 10 domains, then €1 per 1,000 messages. Scale: €99/month for 100,000 messages a month and 100 domains, then €0.80 per 1,000 messages. Prices exclude VAT.
Key features
  • DNS and MX validation
  • AI scraper agent for new domain detection
  • Sub-50ms response times
  • Catches 1,200+ new domains per week
  • Confidence scores and detailed reasons for verdicts
  • Soft warning and hard block options
  • DKIM signing on every message
  • Delivery, bounce and complaint tracking
  • No message body storage
  • No tracking pixels or link rewriting
  • HTTP API with official SDKs
  • SMTP support
  • Webhooks with HMAC-SHA256 signing
  • MCP and A2A agent support
  • One-click account deletion
What makes it different
  • Real-time updates catch new domains within hours, not months
  • Simple one-request API integration
  • 99.7% detection accuracy
  • No email address storage, privacy-first architecture
  • Message bodies never stored, only envelope and subject line kept
  • No tracking pixels, no link rewriting
  • Free plan is permanent, not a trial
  • Single server in Stockholm, minimal third-party access
  • 99.5% uptime commitment on paid plans
Community votes00
DR (Domain Rating by Ahrefs)2 no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)224
Referring domains (Majestic)191

5 details filled in for both companies.

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