Compare Mailbloc with Leading Fraud Prevention Platforms

See how Mailbloc compares to IPQS, Castle.io, APIVoid, and Antideo across email validation, IP reputation, pricing, and ease of use.

Start Free Forever View Pricing

Why Developers Choose Mailbloc

🎉

Forever Free

Unlimited API calls on the free plan. No credit card, no trials that expire, no hidden costs. Just start validating.

⚡

Simple & Fast

One endpoint. Clear risk levels (HIGH/MEDIUM/LOW/NONE). No complex scoring algorithms or 50+ data points to interpret.

💪

Pro When You Need It

$39/mo for ML-powered detection with 100 req/min. No per-lookup fees, no surprise bills, no enterprise sales calls.

Jump to Detailed Comparison

vs IPQS vs Castle.io vs APIVoid vs Antideo

Complete Feature Comparison

Feature Mailbloc IPQS Castle.io APIVoid Antideo
Free Plan ✅ Forever ⚠️ 5K lookups/mo ⚠️ 1K calls/mo ⚠️ Limited ⚠️ 10 req/hour
Free Plan API Calls Unlimited 5,000/month 1,000/month Varies 240/day
Pro Plan Pricing $39/mo $100s-$1000s/mo Contact sales $50-$500+/mo $5-$50/mo
Email Validation ✅ Yes ✅ Yes ✅ Basic ✅ Yes ✅ Yes
Disposable Email Detection ✅ Yes ✅ Yes ✅ Yes ✅ Yes ✅ Yes
MX Record Validation ✅ Yes ✅ Yes ❌ No ✅ Yes ✅ Yes
IP Reputation ✅ Yes ✅ Yes ✅ Yes ✅ Yes ✅ Yes
Risk Classification Simple (4 levels) Complex (0-100 score) Complex scores Risk scores Basic
ML-Powered Detection (Pro) ✅ Yes ✅ Yes ✅ Yes ❌ No ❌ No
Device Fingerprinting ❌ No ✅ Yes ✅ Yes ❌ No ❌ No
Bot Detection ❌ No (focused on signups) ✅ Yes ✅ Yes ❌ No ❌ No
Rate Limits (Free) 30 req/min Varies by plan Varies Varies 10 req/hour
Setup Time 2 minutes 10-30 minutes 15-60 minutes 5-10 minutes 5 minutes
Target Audience Developers, startups, SMBs Enterprise Mid-market to enterprise Security teams, SOCs Small businesses
Pricing Model Simple, transparent Complex, usage-based Usage-based Tiered plans Simple tiered
Best For Stopping fake signups Full fraud stack Account security Threat intelligence Basic validation

Choose the Right Tool for Your Use Case

Choose Mailbloc if:

  • ✅ You need a forever-free plan with real value
  • ✅ You want simple, clear risk classification
  • ✅ You're building a SaaS with user signups
  • ✅ You want transparent, predictable pricing
  • ✅ You value simplicity over complexity
  • ✅ You need unlimited API calls without breaking the bank

Choose IPQS if:

  • • You need comprehensive fraud detection
  • • You want device fingerprinting
  • • You need phone number validation
  • • Budget isn't a primary concern
  • • You have a dedicated fraud team
  • • You need advanced ML scoring

Choose Castle.io if:

  • • You need account takeover protection
  • • Behavioral analysis is critical
  • • You want real-time bot detection
  • • You can handle complex integration
  • • You're mid-market or enterprise
  • • Security is your primary focus

Choose APIVoid if:

  • • You're a security analyst or SOC team
  • • You need threat intelligence APIs
  • • You want multiple security tools
  • • You're integrating with SIEM
  • • Technical complexity isn't an issue
  • • You need URL/domain scanning

Choose Antideo if:

  • • Budget is extremely limited
  • • You only need basic validation
  • • Your traffic is very low
  • • You don't need ML detection
  • • You want the cheapest option
  • • Simple features are enough

💡 Why Most Choose Mailbloc

Best balance of power and simplicity. Forever-free plan that actually works, with a clear upgrade path to Pro when you need ML detection. No complexity tax, no per-lookup fees, no enterprise sales cycles.

Common Questions

How is Mailbloc's free plan different from competitors?

Mailbloc offers truly unlimited API calls on the free plan, while IPQS limits you to 5,000/month, Castle.io to 1,000/month, and Antideo to just 240/day. Our free plan is designed to be production-ready, not just a trial.

Why is Mailbloc so much cheaper than IPQS?

We focus on doing one thing exceptionally well: stopping fake signups. We don't try to be a full fraud suite with device fingerprinting, phone validation, and URL scanning. This focused approach lets us offer transparent pricing without enterprise overhead.

What if I need more than email and IP validation?

If you need device fingerprinting, bot detection, or account takeover protection, consider IPQS or Castle.io. But for most SaaS applications, email and IP validation catches 90%+ of fraud at signup with far less complexity and cost.

Can I switch from another provider to Mailbloc?

Yes! Our API is simple to integrate. Most developers switch in under an hour. Start with our free plan to validate the integration, then upgrade to Pro if you need ML-powered detection.

Stop Fake Sign-ups Without Breaking the Bank

Join developers who chose simplicity, transparency, and value. Forever free plan with no catch.

Start Free Forever View Documentation

No credit card required • Unlimited API calls • Upgrade anytime