Null Bounce vs Skrapp: The Honest Comparison Nobody Else Has Written
Most comparison pages confuse Null Bounce with NeverBounce or ZeroBounce. That confusion wastes your time. Null Bounce and Skrapp are fundamentally different products, and picking the wrong one wastes money and tanks your deliverability.
30-Second Verdict
Null Bounce is a pure email verifier. Pay-as-you-go credits that never expire, and unknowns are free. Best for cleaning lists on a budget.
Skrapp is an email finder + verifier hybrid. Subscription-based, with one credit covering both finding and checking an email. Best if you need to source emails from scratch.
Skip both if you need email finding and verification with top-tier accuracy in one platform - Prospeo combines both with 98% email accuracy across 300M+ professional profiles and a 7-day data refresh cycle.
What Each Tool Actually Does
Null Bounce is a scalpel. Upload a CSV or hit the API, and it runs SMTP validation, anti-greylisting checks, catch-all domain detection, disposable and role-based filtering, and MTA/MX record validation. That's it. No email finding, no native CRM integrations, no Chrome extension. You bring the list, it cleans the list.
Skrapp casts a wider net. It draws from 150M+ professional profiles, finds emails via search or a Chrome extension, and verifies them in the same workflow. G2 reviewers consistently praise its ease of use and fast prospecting flow. Credits roll over month-to-month, and you keep them even if you cancel - a genuinely fair policy. The tradeoff? Verification depth depends on your plan tier, and the deeper checks that actually prevent bounces on tricky domains sit behind the $262/month Enterprise plan.
Features & Pricing Compared
G2 ratings tell a story here: Skrapp holds 4.5/5 from 324 reviews. Null Bounce sits at 4.0/5 from a single review. One is battle-tested. The other is largely unproven in public.
| Feature | Null Bounce | Skrapp |
|---|---|---|
| Email finding | No | Yes (150M+ profiles) |
| Verification checks | SMTP, anti-greylisting, catch-all, disposable/role/free provider, MX/MTA | Core checks on lower tiers; advanced checks on Enterprise |
| API access | All tiers (including free) | Paid accounts only |
| Credit policy | Unknowns free | Valid + catch-all charged; invalid/unknown free |
| Native integrations | None | Salesforce, HubSpot, Pipedrive, Zoho, Clay |
| G2 rating | 4.0/5 (1 review) | 4.5/5 (324 reviews) |
On Skrapp's lower tiers, you get syntax, role-based, gibberish, disposable, and free-mailbox checks. That's table stakes. The deeper SMTP and catch-all verification that actually matters when you're trying to protect sender reputation? That's Enterprise only.
| Volume | Null Bounce | Skrapp |
|---|---|---|
| 1,000 emails | $5 (one-time) | $30/mo (Professional) |
| 10,000 emails | $15 (one-time) | $262/mo (Enterprise, 50K credits) |
| 50,000 emails | $50 (one-time) | $262/mo (Enterprise) |
| 100,000 emails | $90 (one-time) | ~$400/mo |
At 10,000 pure verifications, you're looking at $15 versus $262/month. Skrapp's pricing makes more sense when you're using it as a finder, since one credit covers both discovery and verification. But if you already have a list and just need it cleaned, the math isn't close.
For more context on verifier options, compare tools in our guide to email verification and how teams evaluate an AI email checker.
Null Bounce verifies but can't find emails. Skrapp finds emails but hits under 50% valid rates in real-world tests. Prospeo's proprietary 5-step verification delivers 98% email accuracy across 300M+ profiles - with catch-all handling, spam-trap removal, and honeypot filtering included on every plan.
Stop paying twice for finding and verifying. Get both for $0.01 per email.
Verification Accuracy
Here's the thing: Skrapp's own blog post about Verifier 2.0 claims verification is "a whopping 90%" accurate in one paragraph, then pitches "97% accuracy" a few scrolls later. That's not confidence-inspiring.
Real-world data is tougher. A practitioner on r/sales ran roughly 100,000+ records through both Apollo and Skrapp, then validated via ZeroBounce. Apollo returned 63% valid emails. Skrapp returned 48%. A separate test on r/coldemail with 2,500 contacts showed Skrapp at 46% valid - behind Findymail at 75.2% and GetProspect at 64.6%. We've seen similar patterns in our own testing: tools that bundle finding and verification often sacrifice depth on the verification side to keep credit costs low.
The 2026 industry benchmark is keeping total bounces below 2%, with top performers targeting hard bounces under 1%. And with 28% of B2B domains being catch-all, how a verifier handles those domains matters enormously. Catch-all handling is where most verifiers quietly fall apart. Null Bounce's anti-greylisting approach and catch-all checks on every tier are genuine strengths - though with only one G2 review, you'll want to run your own test before committing volume.
If you're trying to diagnose deliverability issues end-to-end, start with our email deliverability guide and the deeper breakdown of email bounce rate.
API & Integration Depth
Pick Null Bounce if you're building a custom pipeline and just need a verification endpoint. API access comes on every tier, including free. No bulk API and zero native integrations, though - you're wiring everything yourself.
Pick Skrapp if you need a broader toolkit. Its API covers email finding, verification, and company search, but requires a paid account. One thing to watch: API versions differ across their docs (v2 and v3 endpoints coexist), so read carefully before building.
For teams that want native CRM pushes without custom code, Skrapp wins by default. Null Bounce doesn't integrate with anything. If you're mapping your stack, this guide on how to connect outreach tool to CRM can help.
When to Pick Which
Pick Null Bounce if you already have a list and just need it cleaned, want pay-as-you-go with no subscription, care about cost at volume, or need catch-all and SMTP checks without paying $262/month.
Pick Skrapp if you need to find emails from scratch, want a Chrome extension for prospecting on professional profiles, need native CRM integrations, or value credit-rollover flexibility. Just go in with realistic accuracy expectations - sub-50% valid rates in independent tests mean you'll likely need a secondary verification step anyway.
Let's be honest: most teams comparing these two actually need neither. Null Bounce only verifies. Skrapp finds and verifies but with accuracy that requires a second pass. If your average deal size is above $5K, the cost of a bounced email isn't the credit - it's the burned sender domain. Spend on accuracy first. (If you're building a repeatable outbound motion, these sales prospecting techniques help keep volume and quality aligned.)
When You Need Both Finding and Verification
If you need email finding and verification without the accuracy tradeoffs Skrapp's real-world data reveals, Prospeo is the cleaner answer. It covers 300M+ professional profiles with 98% email accuracy, powered by a proprietary 5-step verification process that includes catch-all handling, spam-trap removal, and honeypot filtering. Data refreshes every 7 days - compared to the 6-week industry average. Teams like Snyk cut bounce rates from 35-40% to under 5% after switching, while Stack Optimize maintains 94%+ deliverability across all client campaigns. A free tier gives you 75 emails per month to test before committing.
If you're comparing broader data sources (not just verifiers), see our breakdown of data enrichment services and best sales prospecting databases.
When 28% of B2B domains are catch-all, verification depth isn't optional. Prospeo refreshes every record on a 7-day cycle and runs catch-all checks on every tier - no $262/month Enterprise gate. Snyk cut bounce rates from 35-40% to under 5% across 50 AEs.
Test 98% accuracy yourself with 75 free emails. No credit card required.
FAQ
Is Null Bounce the same as NeverBounce or ZeroBounce?
No. Null Bounce is a separate, independent email verifier with pay-as-you-go pricing and credits that never expire. NeverBounce and ZeroBounce are different companies with subscription models and different feature sets.
Does Skrapp verify emails on its free plan?
Partially. The free plan includes 100 credits and runs syntax, role-based, gibberish, disposable, and free-mailbox checks. Full verification - including catch-all and domain-level checks - requires the Enterprise plan at $262/month.
What's a good alternative for both finding and verifying emails?
Prospeo combines email finding across 300M+ profiles with 98% verified accuracy, a 5-step verification process including catch-all handling, and a 7-day data refresh. Free tier available at 75 emails per month, no credit card required. Hunter and Findymail also offer combined workflows but with smaller databases.