BillionVerify: Best Alternative to Emailable

Introduction

Emailable is a US-based email verification service founded around 2018. It has a solid reputation for speed, a large integration library, and straightforward pricing. It is a legitimate competitor worth considering — this comparison gives you the real differences so you can make an informed decision.

The bottom line: BillionVerify is significantly cheaper than Emailable at every volume tier — 83% cheaper at 10K, 81% cheaper at 100K, and 85% cheaper at 500K. BillionVerify also leads on accuracy (99.9% vs 99%), API response time (Real-time vs ~400ms), and free access. Emailable gives you 250 credits once. BillionVerify gives you 100 credits every single day, adding up to 36,500 per year. Note: Emailable acquired TheChecker in 2024, so thechecker.co now redirects to emailable.com.

Core Verification Features

Advanced Detection Capabilities

Pricing Comparison

Note: Emailable has a minimum purchase of 5K credits. BillionVerify is significantly cheaper at every volume tier — now from $0.001/email. See full pricing details.

API Performance

Our email validation API is built for low-latency production use:

The 100ms difference in API response (real-time vs 400ms) is meaningful for inline form validation. At 100 requests per second, BillionVerify's higher rate limit also reduces throttling for high-traffic applications.

Integration Ecosystem

Emailable has a larger native integration count. If you rely on a platform not covered by BillionVerify's native library, the Zapier and Make connectors bridge most gaps. For direct API integrations, both services work equally well.

Feature Comparison

Pros and Cons

Migration Guide

Migrating from Emailable to BillionVerify

Most API migrations complete in under 30 minutes. The request structure is similar — both use REST APIs with JSON responses.

1. Create your BillionVerify account at billionverify.com — no credit card required. Your 100 daily free credits activate immediately.
2. Generate an API key from the API Settings section of the dashboard.
3. Update your API endpoint and authentication method — Emailable uses a query parameter for auth; BillionVerify uses a request header.
4. Map the response fields — see the field mapping reference below.
5. Run parallel validation on a sample list to compare results before fully cutting over.
6. Connect your integrations via the native connectors or Zapier/Make.

Before (Emailable API):

// Emailable API call
const response = await fetch(
  `https://api.emailable.com/v1/verify?email=test@example.com&api_key=your_emailable_key`
);
const result = await response.json();
// result.state: "deliverable" | "undeliverable" | "risky" | "unknown"

After (BillionVerify API):

// BillionVerify API call
const response = await fetch('https://api.billionverify.com/v1/verify', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'BV-API-KEY': 'your_billionverify_key'
  },
  body: JSON.stringify({ email: 'test@example.com' })
});
const result = await response.json();
// result.status: "valid" | "invalid" | "catch_all" | "disposable" | "unknown"

Response field mapping:

// Emailable -> BillionVerify field equivalents
const fieldMap = {
  'deliverable'   : 'valid',
  'undeliverable' : 'invalid',
  'risky'         : 'catch_all',  // or 'disposable' depending on reason
  'unknown'       : 'unknown'
};

Python example:

import requests

response = requests.post(
    'https://api.billionverify.com/v1/verify',
    headers={
        'BV-API-KEY': 'your_billionverify_key',
        'Content-Type': 'application/json'
    },
    json={'email': 'test@example.com'}
)
data = response.json()
print(data['status'])  # valid | invalid | catch_all | disposable | unknown
print(data['is_disposable'])   # True/False
print(data['is_role_account']) # True/False

Customer Reviews

Natasha Perez, Head of Email at GrowthLab Digital ⭐⭐⭐⭐⭐ (5/5) "We moved from Emailable to BillionVerify primarily because of the daily free credits. Our QA team validates sample lists every morning before campaigns go out. With Emailable we burned through the 250 trial credits in a week and then had to buy. With BillionVerify those daily 100 checks are just built into our workflow at no cost."

Tom Erikson, Backend Engineer at PulseCommerce ⭐⭐⭐⭐⭐ (5/5) "The 'unknown' billing with Emailable was frustrating. If a verification could not be completed, we still paid for it. BillionVerify's policy is clear — you pay for results. The API response is also noticeably faster, which matters for our checkout flow validation."

Sandra Okafor, CRM Manager at NovaMarketing ⭐⭐⭐⭐⭐ (5/5) "At our volume — around 800,000 emails per month — BillionVerify saves us a substantial amount compared to Emailable. Emailable's pricing at that scale was far higher than BillionVerify's. The credits do not expire so we can buy in bulk and use over time, and the accuracy is genuinely better."

Which Service Is Right for You?

Choose BillionVerify If:

Choose Emailable If:

Frequently Asked Questions

Emailable offers 50+ integrations. Does BillionVerify cover the platforms I use?

BillionVerify integrates natively with the 25 most widely used platforms including Mailchimp, HubSpot, ActiveCampaign, Klaviyo, SendGrid, Salesforce, Shopify, and WooCommerce. For platforms not in the native list, Zapier and Make connectors provide access to thousands of additional apps. If you have a specific integration requirement, our team can confirm coverage or help you build a custom connector.

How does BillionVerify handle catch-all domains compared to Emailable?

BillionVerify's catch-all verifier goes beyond a simple accept-all flag. It sends multiple probe addresses to the domain and applies pattern recognition to estimate actual delivery probability, then assigns a risk score. This gives you an actionable signal rather than just "this domain accepts everything." The result accuracy is approximately 95% for catch-all classification.

Emailable charges for "unknown" results. Does BillionVerify?

No. BillionVerify only charges for completed verifications. If a verification returns unknown — due to a temporarily unreachable server or ambiguous response — you are not charged. This is a meaningful policy difference for lists with older or international addresses that are more likely to time out.

What happens to credits if I do not use them?

BillionVerify credits never expire. Buy them when pricing suits your budget and use them when your campaigns are ready. There is no pressure to burn through credits before an arbitrary deadline. Emailable credits expire after 12 months.

How does the free tier compare in practice?

Emailable gives you 250 credits once. BillionVerify gives you 100 credits per day. If you use BillionVerify for just three days, you have already exceeded Emailable's lifetime free quota. Over a year, BillionVerify's free tier provides 36,500 verifications at no cost — useful for ongoing list quality monitoring, QA spot checks, and testing new list segments.

Is BillionVerify's accuracy claim independently verified?

BillionVerify's 99.9% accuracy is measured across a test set of known-valid and known-invalid addresses, updated continuously. The figure reflects the percentage of verifications that correctly classify the address. If you want to verify this against your own lists, the daily free credits let you run samples against known-good and known-bad addresses before committing to a purchase.

What is BillionVerify's policy on disposable email addresses?

BillionVerify's disposable email detection uses a database of 50,000+ known disposable domains combined with a machine learning model that identifies new temporary email services in real time. Disposable addresses are flagged clearly in the API response as a separate classification, so you can handle them differently from hard invalids if your use case requires it.

How long does it take to verify 100,000 emails?

At 50K emails/hour, a list of 100,000 completes in approximately 2 hours. If you need faster processing, contact our team — we support priority queue options for time-sensitive campaigns. The API also supports parallel bulk processing via our bulk email verification endpoint.

Conclusion

Verdict: Emailable is a solid service with a larger integration library and faster batch speeds, but it is significantly more expensive at every volume tier — 83% more at 10K, 81% more at 100K, and 85% more at 500K. BillionVerify is more accurate, faster over the API, dramatically cheaper at all volumes, and provides far more value through its daily free credits and no-expiry credit policy. For teams that care about cost, accuracy, and operational flexibility, BillionVerify is the clear choice.

Start your free trial today with 100 free verifications daily - no credit card required.