BounceZero is the email verification platform built on a simple promise: your credits never expire. No retroactive policy changes. No subscriptions. Just reliable verification at a fair price.
If you are here, you probably already know. Here is the timeline.
NeverBounce was acquired by ZoomInfo, shifting its focus from independent email verification to being a feature within a larger enterprise sales intelligence suite. Pricing and product decisions were no longer made by the original team.
Post-acquisition, NeverBounce pricing increased significantly. What was once competitively priced email verification became substantially more expensive, with customers reporting price increases of up to 300% on renewal. Many small businesses and agencies were priced out.
Perhaps the most frustrating change: credits that customers purchased with no expiration date were retroactively given a 12-month expiry. Customers who had bought credits in good faith logged in to find their balances wiped. This policy was applied to existing credits, not just new purchases.
Customer reviews on Trustpilot reflect widespread dissatisfaction. Reports of slow response times, difficulty reaching support, and unresolved billing issues became common after the acquisition. The service that once prioritized customer relationships shifted to an enterprise-first support model.
BounceZero was built differently. We are an independent company. We do not answer to a parent corporation. Our credits never expire because we believe that when you pay for something, it should remain yours. Period.
A transparent, feature-by-feature comparison.
| Feature | BounceZero | NeverBounce |
|---|---|---|
| Entry price | $6 / 2,000 credits | $49/mo / 10,000 credits |
| Price per 1,000 emails | $3.00 | $8.00+ |
| Credits expire | Never | 12 months |
| Free tier | 100/month, no card | List analysis only |
| Monthly subscription | None required | Required |
| Verification stages | 5-stage pipeline | Basic |
| Signals per email | 40+ | Standard |
| Catch-all detection | Yes | Yes |
| Disposable detection | Yes | Yes |
| Spam trap detection | Yes | Yes |
| API included | All plans | Yes |
| Bulk CSV upload | Yes | Yes |
| AI-powered explanations | Yes | No |
| Domain intelligence | Yes | No |
| Accuracy | 99.5% | ~98% |
| Support | Fast (Telegram + Email) | Degraded post-acquisition |
| Independent company | Yes | No (ZoomInfo subsidiary) |
Pay once, use anytime. Every plan includes the full 5-stage pipeline. Credits never expire.
Need more? Plans up to 1,000,000 credits available. View all plans
Three steps. Better results than NeverBounce ever delivered.
Upload a CSV or TXT file with your email addresses, paste them directly, or use our REST API. Lists of any size are supported.
Every email passes through syntax checks, DNS/MX analysis, SMTP verification, provider intelligence across 200+ providers, and Bayesian + ML scoring with 40+ signals.
Get a detailed report with verification status, confidence scores, and AI-powered explanations for every email. Export as CSV, Excel, or JSON.
No. BounceZero credits never expire. When you purchase credits, they stay in your account indefinitely until you use them. There are no monthly resets, no 12-month expiration windows, and no retroactive policy changes. This is a founding principle of our platform and it will not change.
BounceZero achieves 99.5% accuracy through a 5-stage verification pipeline that analyzes 40+ signals per email. This includes deep SMTP verification, DNS and MX analysis, provider-specific intelligence across 200+ email providers, social signal checks, and dual Bayesian + machine learning scoring. NeverBounce uses a more standard verification approach with fewer stages and signals.
Yes, migration is straightforward. Export your email list from NeverBounce as a CSV file, then upload it directly to BounceZero. Our platform accepts standard CSV and TXT formats with automatic column detection. You can start with 100 free credits each month to compare results before committing to a paid plan.
Every BounceZero account receives 100 free email verification credits every month with no credit card required. This is not a limited trial; you get 100 credits every single month for as long as your account exists. Every free verification uses the same 5-stage pipeline as paid plans.
BounceZero processes every email through five stages: (1) Syntax and RFC compliance validation, (2) DNS lookup and MX record analysis, (3) SMTP connection and mailbox verification, (4) Provider intelligence using 200+ email provider profiles and social signal verification, and (5) Bayesian and machine learning scoring that combines 40+ signals into a confidence score with AI-generated explanations.
No credit card. No expiring credits. No surprises. Just accurate email verification you can rely on.